Delivering Business Services through modern practices and technologies. -- Cloud, DevOps and As-a-Service.
Sunday, December 30, 2007
Top 100 SOA Predictions for 2008
#1 - The incredible value of SaaS is realized and buyers want in
#2 - The buyers realize they need enterprise SOA to effectively pull off SaaS
#3 - #100 are irrelevant.
Wednesday, December 19, 2007
Updating the SOA Scorecard: SCA Services
Unfortunately, neither of these tests actually look at the value that software brings to the business. We've been encouraging our customers to spend more time looking at the business proposition that the service reflects. Business strategy is based on those activities and assets which are considered 'Sustainable Competitive Advantages' or SCA. These are the things that allows a company to be successful in their business year after year. Strategist have various means of identifying and describing the SCA's. Moore's 'core vs. context', and 'value chains' are often applied to help an organization understand where they need to be competitive.
Many organizations have moved beyond SOA pilots and now have scores of services running in production. However, many of these same organizations do not have the truly important services available. The fixation to increase the number of services often overrides the commonsense notion of providing business-valued services.
I've been encouraging customers to look at the three C's of business: Customers, Commerce and Channel. All three of these domains are typically excellent candidate for service enablement with high business value. Obviously, there are other domains that might be more important for your business which should be prioritized higher. The point is that you need to create a priority list of services based on the business that you're in. Service enabling non-valued added aspects of the business might look good on an old fashion SOA scorecard, but it no longer passes the smell test!
Friday, December 14, 2007
Amazon SimpleDB Launches
"Amazon SimpleDB provides a simple web services interface to create and store multiple data sets, query your data easily, and return the results."
SimpleDB sits on top of their hosted computing layer (EC2), proving an integrated cost model for those who are already EC2 customers. From a developer perspective, SimpleDB looks more like a big 'hashtable in the cloud' than a traditional RDBMS. The database is not relational and doesn't support SQL for data definition or data manipulation (DDL/DML). Instead, they have chosen to use a 'schemaless' system for data definition (name/value pairs) and for data manipulation (insert, update, delete) they have chosen to use simple REST style verbs (PUT, GET, DELETE, CREATE, QUERY).
The service is specifically designed for small payloads (not big BLOBS). For larger files, they recommend that you use AWS S3. They also recommend that you only run 'real time queries'. In fact, query execution time is limited to 5 seconds which prevent users from running very large requests. Although some might disagree with this decision, I'm a full supporter of this model. However, organizations will still need to perform two vital operations: 1. Export all data 2. Perform complex BI style queries. It is currently not clear how these items will be supported. The system doesn't seem to support the notion of 'change data capture' which would allow changed records to be sent to a separate analytics engine, nor am I finding a mechanism to easily load or unload a data store which would be a real issue if you time out after 5 seconds...
SimpleDB is in beta which implies that features have been frozen while bugs are ironed out. My primary concern is that they may have accidentally designed "TooSimpleDB". I love the idea of keeping it simple, but they may have overdone it.
Wednesday, December 12, 2007
Replace SOA Governance with Expertise?
The reasons for this conclusion stems from the drug induced high I was on just after the operation when it occurred to me that I had not just survived the biggest operation of my life because someone "governed" it well (sure it was important that the right people were there and that they had the right tools) – I survived because I had EXPERTS working on me who had TRAINED for YEARS.
Well, I partially agree with Owen. Let's not forget that much of the doctors training was on the best practices (sanitary environment, cross-checks, standard procedures, etc.)
SOA Governance isn't a magic bullet. But if it is implemented correctly it will prevent (some) people from doing (some) stupid stuff (some) of the time. And I'm ok with that.
He goes on to say:
Enterprise SOA will be achieved through expertise, passion and shared vision.
You could replace "Enterprise SOA" with just about anything and you'd be correct. The problem is that large organizations are filled with people who are non-experts who don't have passion and lack shared vision. It's that simple. Good SOA Governance makes the assumption that statistically, the average person in your organization is, well, average!
Tuesday, December 11, 2007
SDLC and Work Patterns
First, a comparison: Waterfall looks like this:What Nick is describing is the use of Work Patterns within an SDLC. It is common for people to accidentally combine these two distinct concepts.
Waterfall: Plan --> Envision --> Design --> Develop & Test --> Deploy
Agile: Plan --> Sprint --> Sprint --> (occasionally) Deploy --> Sprint --> Deploy
A SOA SDLC looks more like this:
Plan --> Sprint (Process and User Experience) --> Sprint (Process & Services) --> Deploy --> Sprint (P&UX) --> Sprint (P&S) --> Deploy
Here's the difference...
- SDLC focuses on the phases, activities and artifacts
- Work Patterns focus on the selection of phases, iterations and workflows
It's hard to describe but take a look at this and I think you'll see what I mean:
See section 13.2 for an example. I do agree that running a serial SOA SDLC is not a good thing. I was glad to see Nick mention User Experience. Usually, we'll talk about the Consumer SDLC and aligning it with the Service SDLC.
Monday, December 10, 2007
Ruby on Rails picks REST, will you?
ActionWebService out, ActiveResource in
It’ll probably come as no surprise that Rails has picked a side in the SOAP vs REST debate. Unless you absolutely have to use SOAP for integration purposes, we strongly discourage you from doing so. As a naturally extension of that, we’ve pulled ActionWebService from the default bundle. It’s only a gem install actionwebservice away, but it sends an important message none the less.
This is an interesting question: When do you have to use SOAP? or WSDL? The answer is that rarely do you "have" to use it. The two most common reasons for using it are
1. It's the corporate standard (someone tells you to)
2. You have some software that only speaks SOAP
I'm a fan of using the smallest amount of protocol to accomplish the job at hand. REST is about simplicity - simple to design, simple to consume. And simplicity introduces scalability of human consumers. That is, it doesn't require reading gobs of white papers on the subject to understand it.
The funny thing is I'm also a fan of protocol extensions. The big idea behind the WS-* stack was that it didn't require you to use all of the WS-* stuff at once; you were able to pick and choose the elements you needed. You could use the basic messaging stuff and throw in a bit of security. If you don't want security, don't use it. You need transactions, hell throw that in... What the REST approach seems to be telling the Web Services world is that even the light stack (WS-I Basic Profile) is too fat. And I agree.
Clearly, I'm not alone on this. Plenty of people have pointed figures at the WS-I and called them ugly names. However, I haven't picked up anything from the WS-I organization suggesting that they realize that their lightweight stack is too fat. Instead of working on an even slimmer profile (call it the WS-SuperLight Profile), they are adding new WS-Fat stuff to the mix. I can't make it any clearer than this: WS-* is dead unless they create a lighter weight protocol.
True RESTifarians will point out that REST isn't really about a 'lighter stack' but rather the genius of REST is in the tenets of the disertation. I mostly agree but I think that there are still variations of the tenets that need to be explored. For example, some might argue that if a new profile was created that Relax NG might be strongly considered as an element.
Regardless, it is clear to me that the WS-I is too fat and about to have a heart attack. But rather than going out and exercising, the leadership team seems devoted to going out and eating a couple pounds of cheese cake. WS-* will collapse if measures are not taken - and soon.
Saturday, December 08, 2007
The Next Phase of SOA
Like many SOA events, there were plenty of sessions on SOA governance, strategy, quality and implementation technologies. New this year was a strong focus on Web 2.0 as the consumers of the services.
Despite all of the good sessions, there was a void around "Information Modeling for SOA". The process of analyzing and designing an information model that mimics the business is a huge issue at every client that I work with. Many of our clients have moved past the initial planning and setup phases of SOA and are out designing and building services. Companies are realizing that having pockets of service teams (working in silos) leads to a collision of service semantics.
Nick Gall, Gartner Guru, commented that this year everyone seemed to be on the same page. The vendors, consultants, analysts and buyers were all in agreement about the steps you take to roll out SOA, the kind of infrastructure you need, etc. In essence, we've been doing it long enough now that there are well known success patterns that are rarely disputed. Nick was also quick to point out that we're not home yet. Like me, Nick feels that Information Modeling for SOA remains a deadly issue for many organizations. Whew! I was so glad to hear that I wasn't alone out there.
He drew the analogy to the database world. Today, most I.T. savvy people know the basics about how to design databases. However, it is a much smaller number of people who are experts in database design - the kind of people who can tell you the difference between 4th normal form and Boyce-Codd normal form. In SOA, we lack the equivalent set of rules for modeling services. In SOA, most people don't even know the equivalent of 1st normal form. Guys like Thomas Erl have thrown out the basics of service design, but it is hardly enough to avoid the pitfalls.
And the issue is much larger than just designing a single loosely coupled service. The real issue is designing a portfolio of services without creating redundancies or conflicts in the message model. Imagine taking the message models of all of the services across a domain (or set of domains) and reconciling their semantics. This view is takes the service out of the 'semantic silo' and begins to introduce an enterprise vocabulary. And like all data, relationships will exist. Here is where it gets interesting. Many people have focused on 'decoupling clients and services' (which is great), but have completely forgotten about decoupling the data model (or service model if you prefer). Pull out a large ER-model and look at all of the relationships between tables. When you resurface the data models as business or data services those relationships will still exist.
The collection of services and their message models is what we call the Enterprise Service Model (ESM). The science of creating the ESM is centered around "Information Modeling for SOA". More to come on this...
Saturday, November 17, 2007
Service Oriented Analysis - Harmony
Thursday, November 15, 2007
BEA Systems or BEA Consulting?
BEA reported third quarter total revenues of $384.4 million, up 11% from last year's third quarter. BEA reported third quarter license fees of $134.8 million, down 1% from a year ago, and services revenue of $249.6 million, up 18% from a year ago.
249 million in service revenue represents approximately 65% of the overall revenue, well beyond the norm. As if BEA wasn't facing enough challenges, they'll now have to answer the very difficult question of valuation. Should BEA be valued as a product company, a services company or a hybrid.
According to Google Finance, their current Price-to-Earnings is 46.31. This is out of whack relative to competition (ORCL, TIBX, etc.) and is even farther away from the valuations of service companies like Accenture, who P/E is 18.6.
Assume for a moment that speculators weren't holding up the BEA stock awaiting an ORCL acquisition; what would happen? What if... Wall Street called BEA on their revenue split and began to value them as a service company? If you were to use consulting valuation multipliers, you might see BEAS price drop to $7 per share, immediately erasing several billion dollars of market cap.
BEA is in a tough position, they need to show year-over-year growth and strong earnings. They were able to accomplish this by creatively finding revenue. This strategy may pay off in the short term, but this quarter over quarter pattern is looking less like a stop-gap measure and more like a business model.
Looking back 10 quarters...
"If it walks like a duck and quacks like a duck..."
Disclaimer - Do not make investments based on this information.
Sunday, November 11, 2007
Power to the People, SOA Style
Enterprise architecture is responsible for creating SOA principles, methods, policies and infrastructure. They do this to ENABLE project teams, not to OWN the services. Often EA will work with 'zone architects' to help identify conceptual services so that the 'just build it guys' don't recreate stuff that already exists. I'm not sure where Jim got the idea that EA owns the services... perhaps that is common in Europe?
What I don't like about Jim's comments is the "us against them" mentality that he is provoking. Is EA an evil organization plotting to destroy the business? The enterprise architects that I work with know that there is no way that they could "own" the thousands of services in a large Enterprise. However, it is common for EA to champion "enterprise services" like customer and product. I think that Marty Brodbeck of Pfizer clearly demonstrated the need for creating a certain set of Master Services when he described the relationship between SOA and MDM at the InfoWorld conference.
Someone asked me if I disliked 'Guerrilla SOA' and I told them, "I have no idea if I like it or dislike it because it has no shape or form. Right now it's just a funny name to a concept that implies applying agile principles to SOA." I'd suggest that the advocates put some additional thought around the concept.
Jim Webber didn't refer to his concept as 'Chaotic SOA'. This implies that there are rules. However, I have no idea what they are. My guess is that Guerrilla SOA will end up looking much more like Enterprise SOA than Chaotic SOA.
Obviously we can't just yell, "power to the people!", although it sounds cool and is a lot easier than thinking it through :-)
Thursday, October 25, 2007
The Enterprise SOA Manifesto
In the vein of the "Agile Manifesto", I'll post my position and invite my colleagues to offer their ideas.
First, it is worth defining Enterprise SOA. The definition that has evolved from working with our customers is,
Enterprise SOA is:
- An Enterprise IT Strategy that encompasses a set of business, process, organizational, governance and technical methods.
- It enables business agility through the use of loosely coupled services that are used as building blocks to develop composite applications that can be reused and recombined to address changing business priorities.
Complementing this definition is a set of supporting philosophies. Note that these philosophies are about Enterprise SOA, not just 'service oriented architecture', which has already been covered.
The Enterprise SOA Manifesto
- Communities over Silos
Enterprise Architecture focuses on creating portfolios of integrated software to fulfill a business mission. Although application silo's can often be created more quickly, the long term process of integrating silo's of logic, data and policy create spaghetti architecture, demoralize teams, stagnate innovation and increase long term maintenance costs. Communities (or application portfolio domains) should adhere to enterprise standards while each zone tailors the localized rules and regulations.
- Balanced Planning over The Extremes
Enterprise SOA attempts to balance 'planning' versus the extremes (too little/too much). The popularity of the Agile movement was largely a knee-jerk reaction to the frustrations with "waterfall planning". Enterprise SOA blends long term planning with tight iterations. Think, "planning in the large, agility in the small".
- Governed Delivery over Ad-hoc Delivery
The enterprise must prioritize the needs of the many over the needs of the few. Applications must be architected to fit into an ecosystem of applications. This will require adherence to guidelines and policies on technical standards and software processes, employed to protect the long term interests of the community.
- Sharing and Reuse over Building from Scratch
Portfolios of applications will have many common functional requirements. An implicit non-functional requirement in Enterprise SOA is to design for sharing and reuse where appropriate.
- Business Priorities over the Enterprise SOA Manifesto
I.T. systems are either a reflection of the business today or a projection of where the business is heading tomorrow. The I.T. approach must not become a religious battle fought at the expense of the business. On occasion, it will be in the best interest of the business to violate the principles of the Enterprise SOA Manifesto for the purpose of 'doing the right thing' for the business. Appropriate planning, governance and leadership should make this the exception, not the rule.
Wednesday, October 24, 2007
JackBe Closes $9.5 Million in Growth Funding
I had the opportunity to speak with JackBe CEO, Luis Derechin, earlier this week. First, I have to publicly congratulate him on running (and finishing) his first marathon! I'm sure there are plenty of parallels to be drawn with running his business...
A couple interesting topics were discussed in our meeting. The first was the inevitable maturation of the market from widgets to platforms. Like many RIA vendors, JackBe initially focused on AJAX widgets and presentation layer accessories. Their business has grown into server-side mashup engines capable of integrating data from a variety of sources (databases, legacy systems, Web Services, etc.) and transforming the transports, payloads and data into easy-to-consume formats for Web 2.0 developers.
I believe that the mashup layer will quickly become an essential element in User Experience Reference Architectures (UE-RA's). The focus of older portal technologies is 'on-the glass integration'. Here, disparate data sources are pulled together as a set of portlets (or windows). Conversely, the Mashup Layer focuses on what I've been calling 'before-the-glass integration'. This enables new functionality to be inserted between consumers and providers (think clients and services), aimed at providing mediation and transformation services 'just in time' based on the context of the consumption.
Because this software is positioned squarely as a presentation layer-to-service go-between, it has the unique advantage of also enabling wide scale governance through policy visibility and control mechanisms. Think of it this way. Today we have 'mash-ups' tomorrow we'll have 'crash-ups'. Service interfaces will change, as will formats and protocols. This places new challenges on software configuration management and the overall governability of the Web 2.0 solutions.
We saw a similar trend in the SOA world where vendors who provided intermediaries had to make a decision. Are you the source of governance policies or the target? This is a fundamental question that each vendor will have to resolve. Said another way, will your tagline be "Mashup Governance" or "Mashup Enablement". That said, a key attribute of Mashup Enablement will be providing Policy Enforcement Points (PEP's), fed by governance vendors.
Over the last 5 years, many of us SOA-guys have put extensive thought into every aspect of the 'service provider' aspect, while neglecting the 'service consumer'. However, an acknowledgement that more advanced UE-RA's are needed will hopefully draw out other Enterprise Architects to surface a more in-depth discussion on this very important topic.
Tuesday, October 23, 2007
Quit the Clowning
In my position, I have visibility into HUNDREDS of SOA programs. Many are active clients - many are past - many are just companies that I've had the privilege to speak with. And through my partners, (the leading SOA infrastructure companies), I have excellent visibility into their historical sales and future demand pipeline. Between these vehicles, I am able to see commitments related to SOA strategy, training, governance, architecture, infrastructure, organizational design, change management, packaged application enablement, service integration and composite application development. That said, I feel like I'm in an excellent position to comment on what is really going on with regard to SOA.
First, SOA is nowhere near the mythical Gartner beast called, "The Trough of Disillusionment". And I think it's funny that people keep trying to force us in that phase so that we can then say we've moved past it. Nope. We're not even close.
Second, the idiots that are running around yelling "guerrilla SOA" have to be put in their place. Many of these individuals are the ones responsible for silo-oriented thinking in the first place. They proposed small (agile) projects where we captured just enough requirements to begin coding and releasing. Guess what? This style of development doesn't jive with the concept of shared services. It is the cause of the problem, not the solution.
We love to compare EA to city planning (plotting out neighborhoods, identifying common infrastructure, etc.) Yes - this requires using your brain and creating a plan. Enterprise SOA involves long term planning coupled with short term results.
Don't get me wrong - I'm a fan of 'controlled agile'. The rules of agile by themselves are so incredibly destructive to large organizations that they have done immense harm. Shouting 'agile manifesto' at people who have to build real 'application communities' is a non-starter.
I am proud of the companies that I work with who take the time to think about what SOA means to them. They plan their community. They consider the common infrastructure. They create policies and rules for their citizens. They identify practices to build the structures (reference architectures). And once they've figured out how to build a community they go do it. They don't do it for the entire enterprise all at once - that isn't what 'enterprise SOA' means. Instead, they partition their enterprise into a set of communities and attack them, often in parallel.
Let's be clear. Enterprise SOA is, by far, in the strongest position it has EVER been in. The jokers who feed columnists bad information need to go away. But this won't happen on its own - it requires the columnist to call them the clowns that they are.
Friday, October 12, 2007
Consolidation in the Software Industry
Quest Software, Inc. + Tibco Software, Inc. + Documentum, Inc. + Take-Two Interactive + Activision, Inc.+ Hyperion Solutions Corp. + Sybase, Inc. + Macromedia, Inc. + RealNetworks, Inc. + Business Objects + Cognizant Technology Sol. + Red Hat, Inc. + Satyam Computer + J.D. Edwards & Company + Autodesk, Inc. + CSK Corporation + Network Associates, Inc. + Konami Corporation + Compuware Corporation + Trend Micro Incorporated + Cognos Incorporated + Mercury Interactive Corp. + VeriSign, Inc. + Citrix Systems, Inc. + Cadence Design Systems + BMC Software, Inc. + Amdocs Limited + BEA Systems, Inc.+ Synopsys, Inc. + Siebel Systems, Inc. + Check Point Software Tech + PeopleSoft, Inc. + Infosys Technologies Ltd.+ Symantec Corporation + Adobe Systems Incorporate + Intuit Inc. + Electronic Arts Inc. + VERITAS Software Corp. + Computer Associates + SAP AG + Oracle Corporation
As I scanned this list, it occurred to me how many of them have been acquired...
- Documentum --> EMC
- Veritas --> Symantec
- Hyperion Solutions --> Oracle
- Macromedia --> Adobe
- Business Objects --> SAP
- J.D. Edwards --> PeopleSoft / Oracle
- Network Associates --> McAffee
- Mercury Interactive --> HP
- BEA Systems --> ??TBD - Oracle??
- Siebel --> Oracle
- PeopleSoft --> Oracle
It is interesting to look at the list of companies that didn't get acquired. Let's remove the non-enterprise I.T. companies (entertainment software, semiconductor, consulting). The odd balls include: Sybase, Tibco, Cognos, Adobe, Citrix, BMC, Red Hat and Computer Associates. In my opinion, these companies need to find a home - and soon.
Companies that have had significant growth since my last post include:
VMware, Inc. and salesforce.com, however you should note that their PE's are 269xTTM and 1,245xTTM - and in my humble opinion - this is just a tad bit inflated! At some point these companies are going to have to increase their top line numbers. Regardless, we've entered into a period of massive consolidation where few new companies can truly shake the market.
Wednesday, October 03, 2007
SAP TechEd - We Have SOA (for real this time)
At the core of the SAP SOA story is the Enterprise Service Repository (ESR). It is actually a combination of both registry and repository. The registry is a UDDI 3.0 implementation and has been tested to integrate with other registries such as Systinet. But the bulk of the work is in their repository. Unlike other commercial repositories, the first thing to notice is that SAP's is pre-populated (full, not empty). It contains gobs of information on global data types, schemas, wsdl's and similar artifacts relating to the SAP modules.
Both the registry and the repository are designed to embrace service metadata that is housed by SAP as well as service information that might be in other platforms (IBM, Microsoft, etc.) And although the registry will do metadata interchange with other registries, we're not so lucky with the repository. Apparently the current version is designed to be a single instance across the entire enterprise. Of course, this isn't realistic in most organizations due to mergers & acquisitions, etc.
SAP has also customized the TOGAF enterprise architecture to meet the needs of large customers. I was hoping to learn more on this but the speaker failed to show up (bummer). However, it was clear that SAP is relying on IDS Sheer to supply EA modeling tools.
I felt like SAP really got it. Unfortunately, I felt like most of the people at the conference didn't. The gap between vendor and customer has grown significantly. Many of the SAP customers have avoided technology topics, favoring black box implementations of large monolithic applications. SAP is introducing a fundamental change that will take time to sink in. They are doing a great job of evangelizing and providing community guidance but this is a huge leap for many of the 'ABAP' programmers of today.
Sunday, September 30, 2007
A Watched Pot Never Boils - SOA Style
Some journalists and bloggers have been critical to the success of SOA. Personally, I view it as a "watched pot". Impatiently staring at an SOA effort and constantly asking, "How many services do we have?" or "What's the ROI?" - doesn't really help.
SOA is a long term change to I.T. - it will take time. I've seen HUGE changes take place in some of the world's largest corporations. I've also seen companies with poor I.T. leadership whine about how they failed. Hell, I could have told them that they would have failed at about anything they tried.
I guess what I'm trying to say is that I don't think that the journalists / bloggers should ask EVERYDAY, "are we there yet?" It's annoying and not helpful. And the LOSERS who threw in the towel - well, they're losers.
Thursday, September 20, 2007
Budgeting for SOA
1. SOA Foundation - A good SOA Foundation program is typically a 3-6 month process utilizing internal and external resources. The initiative rolls together a number of common deliverables: SOA Strategy & Roadmap, SOA Methodology Updates, SOA Reference Architecture, Standards Development and SOA Governance Planning. This will typically cost about $200-400k from external resources, and will eat up significant time of 2-4 internal resources.
2. SOA Infrastructure Realization - Over the last several years, software vendors have been perfecting their SOA solutions. Most large organizations evaluate and acquire their software in 4 different stages, often a year apart.
Stage 1 software is typically a combination of Registry, Repository, Mediation and Web Service Management. For an enterprise license this is typically $750k - 1.25, depending on the size of the organization.
Stage 2 is typically a combination of security and integration. This often includes SOA firewalls and other edge devices. For integration, most organizations are looking at ESB's, orchestration engines and service engines / adapters. Plan on $400-800k for Stage 2.
Stage 3 is typically a combination of EA and Advanced Integration. Organizations that don't have EA modeling tools are quickly bringing them in house and are laying the foundation for their process, service and information modeling needs. Advanced Integration is usually a combination of Data as a Service tools (EII, MDM) as well as legacy host integration. Stage 3 can be quite expensive depending on what all you need. If you're starting from scratch, plan on $1 to 2.5 million for all of it.
Stage 4 is primarily focused on using the services. This includes client side platforms (AJAX, Web 2.0, Next-Gen Portal, Composite Application Tools, etc.) as well as the quality tools to verify the services. From a quality perspective, organizations are buying SOA testing platforms as well as asset governance tools. Comparatively, this area is a bit cheaper, plan on $250 to 800k.
3. SOA Governance Team - After the SOA strategy and roadmap have been defined, the next step is to create an organization that moves SOA forward. Activities include: Program Management, Service Portfolio Management, SOA Infrastructure Architect, SOA Infrastructure Administrator, Service Product Management and typically a couple SOA consultants to engage in active projects and review deliverables. Again, this is typically a combination of internal resources and external SOA consultants. Total combined costs are typically in the $.5 to 1 million range. Also, expect this team to provide significant guidance in the selection of the SOA Infrastructure and to mature the documents defined in the SOA Foundation Program.
4. EA Domain Analysis - All of the expenses on SOA planning, infrastructure and governance is wasted if you don't actually DO SERVICES. It surprises me how many organizations forget this point. Domain analysis is typically performed by enterprise architects who have a strong background in process modeling and service design. They pick a domain area (Sales, Supply Chain, etc.) and perform Process Reengineering, Process Modeling, Service Identification, Service Analysis and Composite Application Requirements Gathering. It is common for these activities to be driven by a Global Process Reeningering effort, or by Application Rationalization / Consolidation efforts. These efforts vary significantly in size, but rarely can you analyze an enterprise domain for under $300k. It is typical for an organization to be analyzing multiple domains in parallel. Most EA teams I've met with are already fully utilized, have minimal budget and don't have time to perform this work. Plan on either adding permanent members to the team or bringing in on-demand external resources.
5. SOA Training and Change Management - Unfortunately, we're not born with SOA skills, we must be trained. Managers, analysts, architects, developers, QA professionals and operational support personnel must all be trained in their piece of the solution. Even after training, you'll find that some people didn't make the change (Silo Oriented Architects), and you will need to provide some degree of change management to either get them on the right page or get them out of the way. Most organizations that we're dealing with are sending 100-300 people to training and are sending IT leaders to conferences. I'd plan on $150k to 400k for getting the teams up to speed.
5. SOA Build and Integration Teams - As organizations continue business as usual, they are constantly bringing in new packaged applications as well as building new systems for their business customers. Going forward, these systems will be sent through the SOA Governance Center. In some cases, the Governance team will determine that they shouldn't be services and will pass them through. In other cases, the systems will be required to adhere to the Governance standards. Packaged applications will often require 'service enablement' and 'service oriented integrations'. New systems will require 'SO-analysis, design, construction and testing'. If you think that your offshore teams will be building your first services, well, you're probably wrong. Service design and construction, like anything new, will most likely be done by in-house teams or on-shore development centers. After the art of SOA Build and Integration is turned into more of a repeatable discipline, you should strongly consider moving this to your favorite commodity development center. For planning purposes, I recommend that you first get a non-service orieneted cost using your internal estimating scheme. Then add on an extra 20-35% to turn the the software into hardened, reusable shared services.
I've said it before and I'll say it again... SOA Transformations cost big bucks, take years to complete but in the end are worth the investment. I hope that this off-the-cuff analysis is valuable to you. Again, it is impossible for me to provide anyone with accurate advice without knowing their situation. I'm currently running around the country helping large organizations put together their precise 2008 SOA budgets. If you need an extra hand looking at your situation - feel free to reach out to me: e-mail me
Wednesday, September 19, 2007
Terry White on SOA
A good approach is to develop a taxonomy that is easily understood by all involved. We recently developed an Enterprise Architecture that was SOA based. It didn’t really look that much different from any other Enterprise Architecture that is modular and effectively layered.
In developing this architecture we involved people from both the IT and business areas of the company. When we first started the context was purely business process – re-engineering and decomposition. We moved them to a services view for looking at the business processes. Then we added the IT “application” details and show how business services would be supported by application services. We decomposed the existing application landscape and re-ordered it to align with the business services.
Business processes have owners, or people responsible to manage them as assets. Applications have owners. Now the move is for services, both business and IT application, to have owners and be managed more like products. One potential problem I noticed is that management tends to count the number of applications supporting their business and work to reduce that number. When we move to services and managing services, there is an automatic increase in things you are managing because before these were all just application functions buried within the application. Aggregating the services can help but it is a bit of a mind shift.
I couldn't agree more. This is very similar the process that we do at MomentumSI. I'm glad to hear that others are having success as well.
Thursday, September 13, 2007
Using SOA to Align I.T. with Itself
I had a conversation with a gentleman the other day. I'll paraphrase his comments... he asked me to imagine an enterprise without computers or software systems. Instead, it had one Filing Room that people went to when they needed to store or retrieve data.
At the front of the Filing Room were people working the Service Counter to fulfill your requests. In the back of the room were Filing Clerks who kept the filing system organized.
In this model it was assumed that the people in the Filing Room did a good job of organizing their files, as to ensure that when a customer asked for "all customers", they didn't have to go to 5 different Filing Cabinets. It was the responsibility of the Filing Clerk to facilitate Master File Management. The Chief Filing Officer was responsible for making sure that the Filing Cabinets stayed organized and on occasion were reorganized.
The "Service" in SOA is the new filing cabinet. Our SOA Governance Teams will work the front counter taking requests and also verify that they filing clerks do their job correctly. They must ensure that the portfolio of filing cabinets stay organized and avoid duplicate filing systems. And ultimately, the CIO must be held responsible for the state of the Filing Room.
SOA is not a holistic EA framework, but it will provide the taxonomy and organizational structure to become the foundation for a single enterprise system of services.
Saturday, July 21, 2007
SOA Consolidation - Updates
The clock is ticking on some of the smaller firms...
Saturday, July 14, 2007
Software M&A Rumors
1. The Dow hits an all time high
2. Rumors of VERY LARGE M&A activity in the I.T. space are off the chart
I'll avoid perpetuating any of the rumors that are going around; talk is cheap. What seems evident is that both I.T. buyers and providers seem bullish on the idea of massive consolidation. Our industry has been in constant flux for a long time, exhibiting all the signs of an immature industry.
Despite our strong economy, many of the preeminent brands continue to bleed money while failing to create a differentiated product portfolio. The buying community has rewarded platform commoditization and 'design to standardization'. Cloners and imitators have shown their ability to rapidly re-create innovator's products using open source and competitive pricing models.
Most large ISV's have already executed on a significant number of acquisitions and have had to become experts in integrating their own products. As their ability to refactor, integrate and generally absorb new products grows, so does their desire to capture additional market share through acquisition.
The unanswered question is where is this all leading? I'm confident that we'll see a few models emerge. However, the one that seems obvious is the one-stop shop. One company provides hardware, software infrastructure, packaged applications and professional services. With the growing popularity of SaaS, we can anticipate that multi-tenant hosted application support will also be a key element. The other trend that can not be discounted is the use of offshore resources to provide low cost labor.
I believe that massive consolidation is both inevitable and necessary. Information and technology providers must reach the next level maturity. They must be able to provide end-to-end solutions and take full responsibility.
Monday, June 25, 2007
Service Lead Management
A similar system is needed in the SOA world. The SOA registry / repository must be viewed first and foremost as a shopping catalog and should employ modern techniques for capturing visits, searches and users. The service librarian must view all hits to the catalog as "leads". The process of following up on these leads is considered "Service Lead Management".
Here is a sample follow up
- Who are you? What department? What project?
- What kind of service were you looking for? (let me help you look)
- Do you want me to tell you more about Service X? (you found one)
- We don't have Service X. Do you want me to talk to the Service Portfolio Manager about adding one to the Shared Services Group?
Remember, when you first get your Service Catalog going, it will be EMPTY. The goal is to find out what people need and to determine if they are good candidates for shared services. Kill "Empty Registry Syndrome"!
Monday, June 18, 2007
Using the Zachmann Framework to Manage Schneider Oriented Architecture
Bill basically says that SOA has been overhyped, is the same-ole architecture and that it is like CORBA, etc. He goes on to say that the new thing is XML and you can already do that in Microsoft .Net. He also states that, " SOA is a matter of good, modular, object-oriented design..." No Bill, SOA is a matter of good Service Oriented Design.
I'm at a loss for words. I can understand his distaste for the amount of attention that SOA is getting. He actually states that he doesn't like: "IT guru firms that peddle high-priced snake oil as "expert advice" and use high-sounding, yet vague and obscure terminology to cloak the utter banality and limited practical value of what -they're saying." My God Bill - have you looked in the mirror? At least we didn't name it after ourselves!!!
This article, written in the Microsoft Redmond Journal, is the biggest bunch of shit I've seen written since Nicholas Carr put pen to paper.
Thursday, June 07, 2007
Advanced SOA Governance - Negotiation
In the last few years, most large enterprises have moved to some variation of the three tiered architecture. Here, the system typically has 4 or 5 layers or tiers:
The stateful interactions that monitor the business processes have been factored out of the business logic, and distributed joins (EII) have become first-order citizens of the architecture.
More advanced Service Oriented Enterprises have adopted this tiering model as the heart of their technical service taxonomy.
This diagram depicts the relationship that services have with the composite applications that consume them. As you can see, some services are required by more than one composite application. This is a core feature of SOA - the sharing of assets across the enterprise to solutions that need them.
Modern SOA Governance practices focus on passing the 'service baton' from one group to the next while verifying that best practices are adhered to and that the baton remains in motion. This movement throughout the software life cycle is managed according to new service/operation requests as well as for change requests. The Service Life Cycle Governance and the Evolution Governance become the primary framework for monitoring change.
The needs (features and functions) of a service will vary by the consuming application. The teams that deal with each software life cycle will need to be aware of the multiple masters (or owners) that they must serve. And on occasion, we can expect that the masters will have disagreements. They will disagree on what it should do, who pays for it, when it should be rolled out, etc. These questions are at the heart of SOA Governance!
As you can see, consuming applications need to approve, prioritize, fund, plan and communicate the changes to shared services. The Service Oriented Enterprise realizes that the services are an enterprise asset, shared for the benefit of the organization. And each business or process owner will, and should, argue for their needs. Ultimately, the group needs to come together to resolve the differences.
SOA will force more occasions where departments and business units will need to find a common ground. I.T. shops have had the need to negotiate for shared infrastructure in the past. If you move forward with SOA, this activity increases significantly. There are no magic answers to SOA Governance. My only recommendation is to make sure that the tools, processes, roles and committees are in place to make the negotiation process as efficient as possible. Said another way, a competitive advantage for the Service Oriented Enterprise is the ability to efficiently negotiate differences and take action.
Friday, June 01, 2007
SOA is an I.T. Strategy
The notion that everything I.T. does is "about the business" is just a little bit silly. Sure, at some secondary or tertiary level it's all about the shareholder. But let's get real... buying rackmount servers is about a more efficient I.T.; standardizing on one or two operating systems is about creating a more efficient I.T - - and sharing common application logic and data across the enterprise is about creating a more efficient I.T.
SOA is first and foremost an I.T. strategy. If you need money from the business to fund SOA, then talk to them using words they understand. But don't kid yourself - this is an I.T. problem and you have to clean up your own mess. If you've created a silo-oriented, sphaghetti integrated, inefficient architecture that slows down your ability to server your internal customers then it's your problem to clean up the mess. Whatever you do, do not insult the business by telling them that you've got a new business strategy called SOA.
Wednesday, May 30, 2007
Did the SOA Community Fail You?
Venture Capital Community
The VC's did their job. They invested early; many of the investments were made in the days following 9-11 which was a tough time for anyone to invest, but they did it. And when they did, they funded deep - but not too deep. It wasn't crazy dot-com investment. As their investments grew up, they did a good job helping them to find parent companies. On a scale of 1 - 10 stars, I'll give the VC a solid 10 on SOA.
Many will argue that a key enabler of SOA was the creation of Web Service standards. The creation of SOAP, WSDL, UDDI and the WS-* stack has been both a blessing and a curse. Often the concepts of SOA are tied to implementations and the limitations of those implementations are then attached to SOA. This is a tough one for me to score. IMHO, the real standards work was done behind closed doors at IBM and Microsoft and then handed to the standard bodies for cleaning and revising. In some cases the standards bodies did more harm then good. Overall, I'll give them 6 stars.
The I.T. analysts got on the SOA bandwagon pretty early. Overall they did a good job of covering an extremely broad subject. Boutiques like ZapThink, Burton Group, CBDI and Macehiter Ward-Dutton showed precision analysis and deep insight. While Gartner, Forrester and IDC all did a sincere job covering the space, their insights often lagged the blogs and mainstream media. I'm giving the I.T. Analysts 8 stars.
The press has been overly generous on the topic of SOA. Most of the large publications have a regular column on SOA and even an SOA blog. Some, like Infoworld, have even held SOA conferences. I think that the reporting has been fair, but often light. Maybe I'm too old, but I remember back when magazines would do more lab testing and comparing products. This just doesn't seem to happen very often anymore. Now, we vote on 'hot products'; how lame is that? If the press would bring back the labs (or more case studies), I'd give them a solid 10. But lacking this I have to give them a 7.
I have no expectations for the academics to do anything. And in my opinion they haven't. They're just where I like them. Hence, they get a solid 10.
SOA Infrastructure Vendors
Infrastructure such as: XML Appliances, ESB's, Orchestration Engines, Smart Intermediaries, Web Service Management/Monitoring, Registries and Repositories became mainstream in the SOA era. For the most part, I was impressed with the ingenuity that the startup's demonstrated in forging their products. And even some of the big guys like IBM showed that they have game. I'd love to give these guys a solid 10 but I can't. It's because of the big lie. These vendors have told customers that their products work with each other and for the most part they don't. HP/Systinet promoted the Governance Interoperability Framework as a solution, but in my personal opinion, they completely failed to deliver. And the rest of the vendors have sat on their lazy asses acting like the problem doesn't exist. I'm giving them 7 stars. How ironic is it that SOA vendors lose 3 stars for having a lack of interoperability?
Consulting and Training Vendors
As a consulting and training vendor - this is a hard one to do. There are a few companies like MomentumSI that I believe are doing a good job of helping organizations make the transition to SOA. The problem is that there are only a few doing a good job and a very large percentage who are not. Consulting companies should be able to quickly deliver SOA best practices, methodology adjustments, job descriptions, project mentoring and deep knowledge on tough subjects like governance and change management. For the most part, the big guys (Accenture, BearingPoint, CSC, EDS, SAIC, WiPro, etc.) are still very immature. There are a few notable exceptions, in my opinion Infosys, CGEY and IBM Global Services are all making sincere attempts to build out their SOA competency, with IBM leading the pack. I'm going to have to give this category 6 stars.
Packaged Application Vendors
First, as long as this category is called 'packaged apps' and not 'packaged services' I'm probably going to bash it. I remember back when we used to talk about the end of 'big bang implementations'. This was the idea that you wouldn't spend 3 years installing and configuring a huge monolithic application like SAP. Instead, you'd do it one service at a time. Ha! The packaged app companies were quick to get on the SOA bandwagon. They realized that this paradigm offered a genuine threat to their model and were quick to say that they embraced it. The question is, "embraced what?" That they'd web service enable BAPI's and hide the ABAP code? You've gotta be joking? And there is a reason why people refer to the Oracle strategy as conFUSION. Without a doubt, the best thing that these guys have done is made promises about SOA indicating to customers that SOA is the future. Yes, because of their marketing efforts I am forced to give this category 2 stars.
Design Tooling Vendors
In every paradigm change, we require new tools to facilitate the new architecture. In past generations we saw wonderful products like Rational Rose, ER/Win and TogetherJ rise to the occasion. I am so disappointed in the lack of progress in this category. The EA modeling vendors have demonstrated 'pompous ignorance' and failed to deliver anything resembling modern SOA tooling. Notational standards for service models remain in their infancy. I firmly believe that the lack of SOA modeling standards and tools will defer the adoption cycle. This category deserves zero stars.
Now the burden is on the buyer. Did the SOA Community fail you or will you fail it? It is the responsibility of every buyer to push the community to do a better job. Money talks.
Sunday, May 20, 2007
Talking to the Business about SOA
I often recieve the question, "How do you go about talking to the business about SOA?"
Here's my advice. Don’t lump all non-I.T. functions into a single bucket called the business! We must know our audience and create a message that they can relate to.
There are many definitions of SOA, but my favorite is to describe SOA as an 'I.T. economic model focused on cost savings through increased utilization of existing enterprise assets'. First and foremost, shared services should be viewed as a subsidized and highly leveraged asset that lends itself to supply and demand economics.
From a slightly different perspective, we can say, “SOA is an I.T. investment model that allows you to view your enterprise I.T. assets from a portfolio perspective enabling precision investing.” Here, the focus is on the granularity of the investment. By breaking large, monolithic investments into smaller units we have increased our ability to specify and evaluate individual investments.
In the past, it was difficult for I.T. to divide up large systems into smaller units and have each smaller unit sourced individually. In order to do this successfully, you need to be able to specify how they will reintegrate by using common standards. Recently, I.T. has made a significant advance in these standards and we are now able to employ a multi-sourcing strategy for very large systems. In fact, buying large pre-integrated systems that are proprietary is now considered a worst practice.
I.T. has finally learned that we need to specific software requirements using precise terminology. We’re now using “digital contracts” to specify the functionality of the systems that we will build or buy. SOA makes I.T. focus on knocking out the contract before we start doing the work. This will allow us to hold internal and external parties accountable for their work products. We’ve also adopted a model for incorporating Service Level Agreements so that on-going satisfaction can be reviewed.
CORPORATE DEVELOPMENT & GROWTH
Corporate development groups must evaluate the risk and costs of performing acquisitions. Integrating the I.T. systems of acquired companies is generally considered a high risk and a costly endeavor. SOA enables the newly acquired systems to be leveraged in a shorter time frame facilitating business and system integration. In essence, SOA is the I.T. strategy for enabling mergers and acquisitions.
The assumption here is that the I.T. department is identifying ‘master services’ and ‘master data’. Newly acquired I.T. systems are rolled underneath these services.
Most mature SOA programs have adopted a ‘process driven’ approach to business and service analysis. By analyzing business capabilities, processes and activities, SOA services and operations can be discovered. This enables I.T. to promote (and often fund) the use of formal process analysis. In addition, since services have been broken into smaller units of work, we now have greater visibility into each unit. This is a key enabler of business process management and monitoring. Now, process improvement specialists can utilize a ‘process driven, service oriented’ approach to monitoring the business and recommending improvements.
THE P&L OWNERS
At the end of the day, someone owns the P&L. This could be the CEO or a business unit head. Organizational leaders need to hear:
- You have a new I.T. strategy that benefits the entire company.
- The strategy can be successful through incremental investments but it will require an initial out-of-the-gate investment.
- If successful, you’ll be able to significantly reduce I.T. costs without sacrificing results.
- The entire I.T. and software industry is heading down this path, so eventually we’re going to be impacted by this software model. The only question is do we want to invest now to get ahead of the curve.
Unlike previous I.T. paradigms, SOA is not about changing out your hardware or creating a new ubiquitous user interface. For the most part, SOA is invisible to the users. This paradigm is harder to explain than others but if done correctly, it's easier to justify.
Try to avoid lumping all non-I.T. personnel into a unit called, “the business”; it’s not ‘us and them’. Know your audience and what they understand and value. SOA is a complex model that has many advantages. The key is to know which advantage to pull out and when!
Tuesday, March 06, 2007
Composite Service Analysis
First and foremost, we must recognize that we are not in the object oriented world where we captured requirements as if there were only one type of logic. We live in a world of domain specific languages and self describing interfaces. Capturing requirements as if we didn't know that kind of input our downstream partners need is just plain silly (and obsolete).
A simplified view of the new process looks like this:
Today, we leverage our downstream partners (UI, design, architecture) to help drive full and useful requirements. The analyst leverages the UI/Mashup/Composite specialist to create mockups, prototypes and even working user interfaces. The UI's are then presented back to the business users to help validate the requirements. UI's typically are good at conveying a single users role in a larger process but fail to paint the big picture. To bring breadth to the table, the analyst will call on a process and integration specialists to clarify process steps, human workflow and even the flow of information between legacy systems. In most cases, the 'composite services', 'integrations' or 'process logic' calls atomic services. This is where fine grained business rules, calculations and constraints are housed. The anlayst will leverage the skills of a Service Designer to stub out or mock up an interface (WSDL) along with a dummy implementation.
Our goal is to use a combination of rapid prototyping and extreme programming to quickly create releases that can be presented to the business community for feedback. Modern analysis embraces the following key concepts:
1. It acknowledges that some functions will be shared (as services)
2. It embraces various types of logic (presentation, process, data, etc.) and documents those requirements in a manner that makes sense to the people who have to build it
3. It leverages the techniques we've learned in spiral, iterative, RAD and agile methods limit risk and involve the user
Remember - SOA is only a piece of the puzzle.
Friday, March 02, 2007
Service Domain Analysis
In a service oriented enterprise, you have a 'owners' of services and 'owners' of composite applications. The service owners are domain focused (manufacturing, sales, etc.) while the composite application owners will be process (or problem) focused. Service owners focus on creating consistent logic and having 'a single version of the truth'. Composite app/mashup owners work with the end users to understand their day-to-day computing needs. Their job is to deliver the right information at the right time to their users. They leverage the service teams to provide the right information.
Today, many organizations have not split their groups into 'service teams' and 'client teams'. This typically requires a re-org and as I've mentioned before is a SLOW process. In the meantime, I'm suggesting the following process:
In this scenario we have a project analyst who is working with a business user to determine their needs. They will employ a variety of techniques to uncover the requirements. The analyst will often be trained in rapid prototyping (Web 2.0 style) or work with others with that skill set. They will also use Service Oriented Analysis techniques to identify potential services and scope them out. The analyst will document their findings in a form different than legacy silo systems. They will use a combination of Service Cases and Operation Cases. These cases are used to fully describe that portion of the system which would be shared and controlled as a service. The portfolio analyst works with the project analyst to verify that the candidates are valid (reusable, distinct, etc.) and create a placeholder for the service, know as a Slot or a Service Slot.
There are a variety of techniques for performing Service Oriented Analysis. At MomentumSI, we utilize a set of practices known as Harmony™. In the coming months, we'll be discussing these practices in detail.
Thursday, March 01, 2007
Starter SOA, Part 3
1. Get the project disciplines to talk with the enterprise guys about SOA
2. Create a SOA Steering Committee to start a dialogue between enterprise disciplines
Number 3 is a bit harder for some organizations. It deals with money, or the lack thereof. The heart of the problem is that the funding process in most I.T. organizations still doesn't facilitate the SOA paradigm. In the past, systems were generally funded as a standalone 'application' that had one owner. Going forward, funding will be broken into:
- Shared Services
- Composite Apps / Clients
- Non-Shared Services (services with one consumer/client; temporarily dedicated)
- Shared infrastructure (reg/rep/esb/wsm/etc.)
- Non-Shared Infrastructure (service container, app server, etc.)
Within each of the aforementioned areas, the dollars will be broken down by the various support groups (engineering, operations, etc.)
The SOA Steering Committee must be capable of recommending financial models that support the future paradigm. Most organizations already have some mechanism to make a request for shared investments. The SOA initiatives must work together to create a standard model for joint investment as it deals with services. Initially, the request looks like an exception to the rule but after time shared investment will become the norm and non-shared investments will be critically reviewed.
Wednesday, February 28, 2007
Starter SOA, Part 2
1. Their isn't a critical mass of SOA enthusiasts
2. No one will pay for SOA infrastructure
3. No model for funding or governing shared services exists
4. Doing SOA right requires a reorganization of I.T.
Simple SOA is primarily directed at the 4th problem. Most I.T organizations have groups that "own applications" or dare I say, they "own monolithic, tightly coupled applications" - they don't own "shared services" (business or technical). Doing SOA right usually requires a new I.T. reporting structure but this can be a SLOW process.
So, the second concept I'm promoting is the use of an SOA Steering Committee.
As I mentioned in my last post, an early (and easy) step to take is having project teams leveraging the enterprise disciplines. Application architects should be working with their counterparts in EA, etc. Once the project teams begin communicating with the enterprise disciplines, the natural progression is to get all of the enterprise disciplines talking to each other.
The agenda for a typical SOA Steering Committee is:
10 minutes - The status of the SOA Roadmap: what is done and what isn't
20 minutes - A review of any new artifacts or SOA deliverables
20 minutes - A discussion on problems that the project teams are encountering
10 minutes - Recommended changes to the SOA Roadmap
It's a simple meeting that is cross-discipline. The team uses a program plan (SOA Roadmap) to keep a list of initiatives visible. The roadmap remains 'agile' and reacts to findings in the field. A fundamental goal of the team is to address issues that pop up quickly and to take decisions back to their respective teams.
In the beginning the team will likely meet often (every 2-4 weeks) and as the program matures the team will probably meet quarterly or until stabilization is realized.
Tuesday, February 27, 2007
Wednesday, January 24, 2007
ERS - Empty Registry Syndrome
Common causes of ERS include:
- Not having a 'shared services group'
- Not monitoring the project pipeline and identifying service early
- Silo-Oriented requirements gathering
- Buying a bad registry
Luckily, ERS is completely curable. By changing habits an organization can usually treat the disease in 3-9 months. It should be noted that the treatment can be painful and takes real commitment.
- Give the development organizations goals related to service creation. The SOA initiatives MUST move beyond enterprise architecture and integration centers
- Revise the I.T. governance, funding and portfolio management processes to find services early
- Train business analysts and application designers to 'identify, analyze and design' services; people were not born with this skill
- Verify that your registry doesn't stink. Here's the test: If you search for a service that doesn't exist does it return with:
A) No results found
B) No results found, would you like to request a new service?
If the answer is "A" please call your vendor and let them know that their software is spreading a disease known as ERS.
Sunday, January 21, 2007
Hattrick Software & Choreography
Hattrick Software focuses on Web Service Choreography:
He blogs about some of his reasoning here: http://pi4tech.blogspot.com/
The original WS-CDL specification was less than impressive, however, the concepts were right on. I haven't gone back to revisit the specs but I will. It will take people some time to understand the fundamental 'centralization' problem associated with BPEL. Until then, alternatives will largely be ignored.
Lustratus Research on SOA
Saturday, January 06, 2007
Service Analysis and Design
The group will not be discussing architecture (mediation, ESB's, SOI, etc.) nor will it be discussing construction (Java, .Net, SCA, etc). The focus is purely on analysis and design. Hope to see you!