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Michael Bell

"Service-Oriented Modeling (SOA): Service Analysis, Design, and Architecture"

The typical rearview mirror approach
to correcting a service life cycle strategy after it failed would be costly. Instead, a proactive
approach to service-oriented life cycle planning is the way to go. Scenarios and risk analysis can
help mitigate some of the problems a given organization may face. An effective time machine
style, however, can assist one to iterate through periods of times in the life cycle to perfect future
outcomes. Is it not like going back in time? Iterations on impending events seem paradoxical
because of the lack of exact timetables and their conditional nature. But this exercise obviously
can help to demonstrate the ramification of the future life cycle process during the planning
phase.
The time-machine workflow style is different from the conditional workflow style because
it does not support multiple execution scenarios, meaning no alternatives are allowed. It merely
enables focus on a particular event (staged or unexpected) in a service life cycle by applying
multiple iterations to perfect the anticipated results.
The key to creating a potent service life cycle is meticulous planning. Thus, throughout the
strategy-crafting sessions, one may pretend that one has been given a few opportunities to plan
how the small-business loan service will be deployed during the transitioning phase to production.
These iterations are illustrated in Exhibit 3.9.
Service Life Cycle Progress View 59
Run-Time Season
Service Life Cycle Timeline
Start End Service Life Cycle Events S r
fe Cycle Continuous D
Li Service S L Disciplines s Design-Time Season
Service
Tr ng ransitionin r n
to Production on Productio
Event
ess Loan Service Small Bu B Lo L s e ne usin s u n
EXHIBIT 3.


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