ITPEC FE Morning April 2019 Question 63
Which of the following is a description of the SOA?
Explanation
Building a system by combining software functions as services — SOA is an architecture for composing reusable service components.
In Service-Oriented Architecture, business functions such as order entry, credit check or shipping are implemented as independent services with standard interfaces. New systems are built by combining existing services, so a service can be reused across systems or replaced without rewriting its callers.
Answer (a)
Why not others:
- •(b) — using IT in sales activities to raise sales efficiency and customer satisfaction is SFA (Sales Force Automation)
- •(c) — radically redesigning business processes to improve cost, quality, service and speed is BPR (Business Process Re-engineering)
- •(d) — outsourcing non-core operations to concentrate resources on the core business is outsourcing to strengthen core competence, such as BPO
Key rule: SOA is about how systems are built, from reusable service components; SFA, BPR and outsourcing are about how the business itself operates.
System Strategy · AI-written, may contain errors
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