Accounting Information Systems (QNO1 / PQNO) Practice Exam

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Which phase of the SDLC is focused on designing the system architecture and data model?

Initiation/feasibility assessment

Analysis/requirements gathering

Implementation/programming and testing

Design/System architecture and data model design

Designing the system architecture and the data model is about turning requirements into a concrete blueprint for how the system will be built. In this phase you specify the overall structure—how components will interact, where data will be stored, how processes will flow, what technology stack to use, and what interfaces and security controls are needed. At the same time, you design the data model—the schemas, relationships, and data dictionaries that define how data is stored, related, and accessed.

These design decisions guide developers during implementation, ensuring the solution meets the stated requirements and behaves as expected. Earlier stages focus on what should be built and why (feasibility and requirements gathering), while the actual construction, testing, and deployment happen later.