Which of the following SDLC phases consists of the given security controls: Misuse Case Modeling Security Design and Architecture Review Threat and Risk Modeling Security Requirements and Test Cases G

Question

Options

• ADesign
• BMaintenance
• CDeployment
• DRequirements Gathering

• A
  73% (33)
• B
  16% (7)
• C
  4% (2)
• D
  7% (3)

Explanation

Design is correct because this phase is where architects and developers translate requirements into a concrete blueprint - making it the ideal stage to model threats, review security architecture, identify potential misuse scenarios, and define security-focused test cases before any code is written.

Why the distractors are wrong:

• B. Maintenance involves patching, monitoring, and updating a live system - not upfront modeling or architecture reviews.
• C. Deployment focuses on releasing software to production environments and configuration hardening, not creating security models or design artifacts.
• D. Requirements Gathering captures what the system must do at a high level; it precedes design and doesn't yet involve architectural review or threat modeling techniques like misuse cases.

Memory tip: Think of Design as "drawing the blueprint before breaking ground." All four controls - misuse cases, architecture review, threat/risk modeling, and security test case generation - are blueprint-level activities that shape how the system will be built securely, which is the hallmark of the Design phase.

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