Tag Archives: Erl

SOA Symposium – Is SOA still dead?

In the SOA still dead blogpost based on his impression of the SOA Symposium 2009, Joe McKendrick asks the question:

Is SOA still dead?

My personal opinion is that SOA is still alive or reanimated. The declaration of the SOA Manifesto has contributed to this. The least it has done is start discussion online and offline. These discussions will lead to a better understanding for the participants and those following them. The result will be more mature and successful (in business terms not technology) SOA implementations. This would be quite an achievement if the statistics that Anne Thomas Manes presented are accurate:

fewer than 10% of companies have seen significant business value in their SOA efforts.

Although the quotes on this page seem rather negative, I’m still an optimist on the case for SOA. It brings us solid principles and guidance in developing software of better quality.

Views on the SOA Symposium

The proclamation of the SOA Manifesto has resulted in most of the blogpost on the SOA Symposium. However there are post dedicated to a broader spectrum of the SOA Symposium. These give an impression or reflect back on things.

Reading the blog of Linda Terlouw, I remembered having the same expectations on the “Service-Oriented Solution Evaluation Criteria” session: some info on how you can measure whether or not (or to which extent) a service conforms to certain principles. Instead it was a summary of the principles as they are defined by Thomas Erl.

Comments, like this one, are appreciated.

SOA Manifesto declared at SOA Symposium 2009

At the end of the SOA Symposium 2009 the SOA Manifesto was ready and declared. It is based on these principles.

SOA Manifesto

Service orientation is a paradigm that frames what you do. Service-oriented
architecture (SOA) is a type of architecture that results from applying service
orientation. We have been applying service orientation to help organizations
consistently deliver sustainable business value, with increased agility and
cost effectiveness, in line with changing business needs.
Through our work we have come to prioritize:

Business value over technical strategy
Strategic goals over project-specific benefits
Intrinsic interoperability over custom integration
Shared services over specific-purpose implementations
Flexibility over optimization
Evolutionary refinement over pursuit of initial perfection

That is, while we value the items on the right, we value the items on the left more.

You can watch the Announcement of the SOA Manifesto on Youtube.

SOA Manifesto in Wordle

SOA Manifesto in Wordle

The manifesto was signed and declared by: Ali Arsanjani, Grady Booch, Toufic Boubez, Paul C. Brown, David Chappell, John deVadoss, Thomas Erl, Nicolai Josuttis, Dirk Krafzig, Mark Little, Brian Loesgen, Anne Thomas Manes, Joe McKendrick, Steve Ross-Talbot, Stefan Tilkov, Clemens Utschig-Utschig, Herbjörn Wilhelmsen. Soon you can join them in signing the manifesto on soa-manifesto.org.

Update Oct. 26th
I found some blogposts of people participating in the creation of the SOA Manifesto: Clemens Utschig and Stefan Tilkov

SOA Symposium in Tweets

October 22th

SOA Symposium Tweets

SOA Symposium Tweets

  • arrived at the #soasym09
  • there will be a reincarnation of SOA #soasym09 – @atmanes – focus on the hard work of architecture
  • replaying The Exorcist at the EVIL SOA including the chanting: I cast thy out!!
  • the exorcism of the Evil SOA wasn’t a pretty sight #soasym09
  • Oh, and there is Good SOA Up – in an angeliclike shape and character – pure goodness #soasym09
  • RT while others state cloud requires SOA… @bvanzomeren: “joe mckendrick: cloud is soa done right #soasym09”
  • First blogpost from the #soasym09 http://bit.ly/2Tud0V
  • Services are enterprise assets and have to be managed like these #soasym09
  • is the gap between IT and Business just a reflection of the left – right brain difference? as discussed at #soasym09 . lets explore this
  • Achieving process excellence “co-hosted” by IDS Scheer and Software AG #soasym09
  • there hasn’t been a session #soasym09 that mentioned chaos in some shape or form #entropy !?
  • feeling Appleless tweeting n blogging from #soasym09 – have to find a sponsor or budget 🙂
  • Grady Booch joins us at #soasym09 via Second Life

October 22th

  • another virtual keynote at #soasym09 – Dennis Wisnosky of the DoD
  • Interesting session on SOA Governance by Steve Pope (AmberPoint) will check the demo at their booth #soasym09
  • very lively, enthousiast session on Smart Use Cases by @aahoogendoorn #soasym09
  • received a draft manuscript of the SOA with REST book by Thomas Erl ea #soasym09
  • has the ESB become a commodity? #soasym09
  • RT agree @bvanzomeren: interesting talk of @lindaterlouw and A d hertog about the road enterprise architecture to portal and esb #soasym09″
  • The SOA Manifesto is presented at #soasym09
  • RT @soasym: “Wordle of #soasym09 http://ow.ly/waEv”
  • RT @atmanes: “The SOA Manifesto is complete. It will be published shortly on http://soa-manifesto.org” #soasym09
  • All tweets on SOA Symposium

    All tweets on th SOA Symposium can be found here. As they used the #soasym09 that is…. The Wordle is available here.

SOA Symposium – Next Generation SOA

There were some great sessions on the first morning of the 2009 edition of the SOA Symposium. One that is again dedicated to “substance only”. The keynotes of Thomas Erl and Anne Thomas Manes basically went on where the blogpost ended, and declared “SOA is dead, long live Services”. Most people forgot to read the last part of that statement. At the same time we’ll see that Architecture will play a main role in Next Generation SOA.

The New SOA is all about Architecture.

If we are not going to use the architectural principals and patterns, we won’t be able to “clean the house”. This will leave us with the same problems as we had before… only now they have a SOA sauce on top of them. Business is not interested in this somewhat technology flavored sauce. And that is what makes it hard to sell SOA to the business!

Exorcism of the bad SOA

Before we can go to the new and improved SOA, we have to lose the old one. So a real “exorcism” based on the movie was held, as a ritual to leave the past behind. This left us with the question what the New Good SOA will look like. Here are some clues:

  • SOA is something you DO, not something you buy – which is not the easiest statement with al these vendors around 😉
  • SOA doesn’t have to be large scale – This will take away some of the burdens of the enterprise wide scope, that has difficulty with timely delivery and showing business value within a reasonable time.
  • It is about business value – Leaving us with the question how to measure the value of a paradigm? One of the answers lies in the search for metrics for the values of (business) Services.
  • A lot of other possible buzz words – Cloud, BPM, SaaS, and Mashup – depend on the success of the Good SOA. This will leave SOA a prerequisite for the future.

Next Generation SOA

October 22-23 the SOA Symposium 2009 will be hosted in the World Trade Center – Rotterdam, The Netherlands. Besides the Second Annual International SOA Symposium, the International Cloud Symposium will be launched at the same time, as a bonus co-located conference. There will be over 80 speakers including recognized thought leaders, such as Thomas Erl, Grady Booch, Anne Thomas Manes, Joe McKendrick, David Chappell, Dirk Krafzig, Jim Webber, Nicolai Josuttis, Paul Brown, Mark Little, Clemens Utschig, and Torsten Winterberg.

Next Generation SOA cover

Next Generation SOA cover

The theme of the symposium – Next Generation SOA – is explained by Thomas Erl in SOA Magazine of April 2009 :

Next Generation SOA represents how the evolution of service-oriented computing has reached a point where we have not just mature technology platforms and sophisticated modern service technology innovations at our disposal, but also proven practices, patterns, principles, and a clear vision of the target state represented by service-oriented computing.

During the symposium the latest title – Next Generation SOA: A Real-World Guide to Modern Service-Oriented Computing – in The Prentice Hall Service-Oriented Computing Series will be launched.

SOA Manifesto announcement

This event is chosen by leading SOA experts as the location at which the SOA Manifesto will be finalized and, for the first time, announced. The SOA Manifesto is:

A formal declaration of the principles, intentions and ambitions of service-orientation and the service-oriented architectural model.

This announcement will be video recorded and the video file, along with the first draft of the SOA Manifesto, will be published on this site. The final manifesto may be entitled the “Next Generation SOA Manifesto”. Which perfectly fits the theme of the SOA Symposium.

Will we meet there?

I would like to meet you there. Use this site to register. Note that several partners of 10% discount (Oracle, Via Nova Architectura, and DNV).
If you won’t be able to make it, follow this blog. There will be several posts during the event.

Last years resources

In the meantime you can use last years resources and visit the 2008 presentations on slideshare.

SOA Source book released

Last week the Open Group released the SOA Book. It is described as “a collection of source material for use by enterprise architects working with Service-Oriented Architecture“. No surprise that it is (partially) based on TOGAF.

I like the overview in the features and benefits pages. The benefits are described on a less abstract level than the strategic goals of SOA described by Erl. At the same time Erl keeps more consequent in touch with the goals, for example when describing SOA Patterns. Besides that some of the features in the SOA Book are neither specific nor required for SOA implementation (Asset Wrapping, Model-Driven Implementation). That doesn’t help to get a clear definition and grasp on what SOA is.

No doubt that management of change, also known as governance, gets some attention in the book. The presented SOA Governance Vitality Method (SGVM) is a specification of the Plan-Do-Check-Act cycle. It could be of help as a checklist when managing a SOA project.

Starting with SOA Patterns

With the growing presence and maturity of Service-Oriented Architectures (SOA) in the IT industry, the question how to effectively implement a SOA grows louder. As does the need for good reference implementations. Patterns can fill an important role here. The simplest way to describe a pattern is that it provides a proven solution to a common problem individually documented in a consistent format and usually as part of a larger collection. This article will give you some starting points to jump start into the world of SOA Patterns.

Buy the book

SOA Patterns book cover

SOA Patterns book cover

SOA author Thomas Erl has in cooperation with experts and practitioners throughout the SOA community written a 865 page book called SOA Design Patterns .
This book helped me not only to get a better understanding of SOA Patterns, but also of SOA “in general”. Not exactly a cover to cover read, but with some good picks of patterns using the index, this read has enabled me to enhance the quality of my advice to our customers.

Podcasts and Web

Partially due to nostalgic reasons I still love to hold a (large) pile of paper while reading. However, while not as extensive as the book, the community site SOA Patterns that comes with the book offers a great reference. Besides that you can find a series of podcasts based on the book. I increased the knowledge transfer efficiency by listening to these podcasts while commuting.

Both of the starting point will give you a head start working with SOA Patterns. The book offers the most thorough and in-depth information. While the podcast plus web offers a great efficiency of knowledge transfer and a solid reference. This article from SOA World magazine will give you a good introduction.

Update May 28th 2009: As Clemens Utschig points out there is a series of podcasts in the OTN Arch2Arch community on the involvement of Oracle (employees) in Thomas Erl’s book. Part 1 Part 2 Part 3