Announcing CMMN Method and Style by Bruce Silver

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Those familiar with my past writings may be surprised that I have written a book on the Case Management Model and Notation (CMMN) standard, because when CMMN was launched in 2014, I was unenthusiastic and vocal about it.  Business process modeling already had a standard – BPMN 2.0 – that was widely adopted by both business and technical modelers.  Why did we now need a different one?  CMMN’s creators maintained that it was necessary because there are many kinds of processes that BPMN is unable to handle.  Although BPMN could have been tweaked to handle them, those tweaks never happened.  In my opinion, they never will; the BPMN 2.0 spec appears to be forever frozen in stone.

Actually, CMMN’s backers have a valid point.  BPMN does have limitations, and in my BPMN Method and Style training we discuss them.  Those limitations mostly stem from the fact that BPMN’s conception of a process is quite narrow, much narrower in fact than that of BPM Architecture and most other areas of business process management.  For example, many of the “processes” listed in APQC’s Process Classification Framework are not what BPMN would call processes, and many cannot be modeled in BPMN at all.  CMMN, on the other hand, could handle them.  That’s reason number one for my change of heart.  Instead of describing the logic procedurally – following a defined sequence of steps – CMMN logic is declarative, each case element independently defining its own prerequisite conditions.  That gives it great flexibility, but makes the logic harder to communicate clearly. Get the book here. For additional BPM books please see the wiki here.

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About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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