This broker??™s responsibilities are labeled as T (message transformer), M (transaction
monitor), and E (content enricher). The markets news atomic service augments the message
content by pulling stock prices from the stock price atomic service and then delivers the request
to the business news atomic service. Note that the business news consumer maintains implied
relationship with the business news atomic service.
SERVICE-ORIENTED LOGICAL DESIGN RELATIONSHIP DIAGRAM
The time has come to discuss the construction of the design relationship diagram, which depicts
logical links between services. Remember, this diagram describes message routes between consumers,
services, and their peers. Thus, these design relationships must identify external and
internal service communication and elaborate on how consumers and services resolve collaboration
barriers despite their complex environment. But the environmental challenge is not the
only aspect that must be resolved. This relationship diagram also should illustrate how services
converse and deliver information while taking part in aggregated structures, such as clusters or
composite formations.
One of the most crucial aspects of the service relationship diagram is the service visibility
principles that make it possible to hide, expose, or protect assets. ???Service visibility??? also means
that the solution that is proposed should be rooted in design best practices and policies that will
be propagated to the architecture team, and will later on influence service construction disciplines.
Pages:
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439