Random Thoughts about SOA: Part 1

1. Attribute of Successful SOA implementation

• Rate of increase in Technological Complexity should be less than rate of increase in Business Complexity
• Continual siloed Changes
• Conservation of familiarity for technical and business persons
• Feedback based continuous learning and un-learning
• Trap business and technical event and then take action
• Be disruptive as whole but not in incremental fashion.
• Adhere to Standards for benefits not for sake of adherence

2. Design Operators of “Modular” SOA

• Splitting: Services can be made independent
• Substituting: Services can be substitutes and interchanges
• Excluding: Existing services can be removed to build a usable solution
• Augmenting: New Services can be added to create new Composite services and/or processes
• Inverting: Hierarchical and composition dependencies among services can be rearranged ( most difficult)
• Porting: Called Service is independent of calling service.

3. Lean SOATM

• Eliminate Waste: Spend time and resources only what add real customer value
• Amplify Leaning: Tougher the problem, increasing the feedback
• Decide as Late as Possible: Keep options open as long as practical (not possible)
• Fail early, fail frequent: Use increment development & deployment
• Deliver as fast as possible: Deliver value to customer as soon as customer asks
• Empower the team: People are intelligent, encourage them to contribute
• Build Integrity: Most of the time, shortest route is not the best route
• See the Whole: Beware of the temptation to optimize parts at the expense of whole.