ITPEC FE Morning October 2022 Question 61
ITPEC FE Morning October 2022 — Question 61 of 80
SOA is an architectural style where software is built from loosely coupled, reusable
components called services. Each service encapsulates a business function and communicates
with others via standard interfaces (e.g., APIs). This modularity makes it easier to
adapt systems when business requirements change.
Why not others:
- (a) Describes Enterprise Architecture (EA) frameworks like TOGAF, which define
four architectural layers (business, data, application, technology) to align IT with
business goals.
- (c) Describes structured programming, which uses three control flow structures:
sequence, selection, and iteration — unrelated to SOA.
- (d) Describes Structured Analysis/Design (SA/SD), which uses data flow diagrams
(DFDs) to simultaneously model data and functions in a system.
Key rule: SOA = software built from independent services that map to business
functions, enabling flexibility when business changes occur.
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