CPSA Architectural Goals and Constraints 2 — Questions and Answers
Question 1: Which technique best helps architects identify conflicting quality goals early in a project?
- Quality attribute scenario workshops (Correct answer)
- Writing unit tests for components
- Creating entity-relationship diagrams
- Defining database schemas first
Correct answer: Quality attribute scenario workshops
Quality attribute scenario workshops surface conflicts between competing goals like performance vs. security before design decisions are locked in.
Question 2: A system must handle both real-time trading and batch reporting. These requirements create what type of architectural tension?
- A tradeoff between latency and throughput (Correct answer)
- A conflict between security and availability
- A contradiction between scalability and portability
- An incompatibility between modifiability and reliability
Correct answer: A tradeoff between latency and throughput
Real-time trading demands low latency while batch reporting benefits from high throughput, creating a classic latency-vs-throughput tradeoff.
Question 3: What does a binding time constraint specify in software architecture?
- When a design decision can be changed or must be fixed (Correct answer)
- How long a system session can remain active
- The maximum time allowed to build a component
- The deadline for stakeholder review meetings
Correct answer: When a design decision can be changed or must be fixed
Binding time constraints define whether a design decision is fixed at compile time, deployment time, or can be changed at runtime.
Question 4: A regulatory constraint requires all data to remain within a specific country's borders. How does this most directly affect architectural decisions?
- It restricts deployment topology and cloud region selection (Correct answer)
- It mandates a specific programming language
- It requires synchronous communication between all services
- It forces use of a monolithic architecture
Correct answer: It restricts deployment topology and cloud region selection
Data residency regulations directly constrain where infrastructure can be hosted, limiting cloud regions and deployment topology choices.
Question 5: In CPSA terminology, what distinguishes an architectural goal from a functional requirement?
- Architectural goals address quality properties; functional requirements describe system behavior (Correct answer)
- Architectural goals are set by developers; functional requirements by managers
- Architectural goals apply only to databases; functional requirements to UI
- Architectural goals are optional; functional requirements are mandatory
Correct answer: Architectural goals address quality properties; functional requirements describe system behavior
Architectural goals focus on quality attributes like performance, security, and maintainability, while functional requirements describe what the system must do.
Question 6: Which stakeholder group most commonly introduces compliance-based architectural constraints?
- Legal and regulatory bodies (Correct answer)
- End users and customers
- Development team leads
- Database administrators
Correct answer: Legal and regulatory bodies
Legal and regulatory bodies impose compliance constraints such as GDPR, HIPAA, or SOX that architects must incorporate into system design.
Question 7: What is the primary purpose of documenting architectural constraints explicitly in architecture documentation?
- To prevent future architects from making decisions that violate non-negotiable boundaries (Correct answer)
- To satisfy project managers with detailed paperwork
- To provide a list of features for the product roadmap
- To describe the user interface design patterns
Correct answer: To prevent future architects from making decisions that violate non-negotiable boundaries
Explicit constraint documentation ensures that future architects and developers understand which boundaries cannot be crossed during evolution or maintenance.
CPSA Architectural Goals and Constraints 2
Which technique best helps architects identify conflicting quality goals early in a project?