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Software Requirements Specification

6 weeks · 0 milestones

Produce a Software Requirements Specification (SRS) for a real or realistic software system using IEEE 830 or an equivalent structured format. The SRS must cover: functional requirements (at least 15 numbered, testable requirements with input, output, and boundary conditions), non-functional requirements (performance, security, availability, maintainability — each with a measurable acceptance criterion), assumptions and constraints documented explicitly, and use-case or user-story mapping to each requirement. The system described must be real or realistic enough that the requirements can be verified against it. Proof artifacts: the SRS document (design artifact) and a review record in which a software engineer challenges at least 3 requirements for completeness or consistency — with your written responses (documentation artifact). Accessible: no special software required — the SRS is a document artifact. Verification: a software engineer or systems architect who challenges 'this requirement is ambiguous — how would you test it?' for at least 3 requirements before endorsing. Generic fictional systems are not accepted; the reviewer must be able to ask grounding questions about real constraints.

Milestone map

Milestone map

3 milestones

Elicit and Document Stakeholder Requirements

1–2 weeks (3–4 hrs/week)

Conduct structured requirements elicitation for a software or system project. Use ≥2 elicitation techniques — interviews, workshops, document analysis, observation, or prototyping — and produce raw requirements notes. Then classify each requirement as functional (what the system shall do) or non-functional (performance, security, reliability, usability constraints). Document ≥15 requirements from ≥3 stakeholder roles. A requirements specification is only as good as the elicitation process behind it — if you only ask one person one question, you will produce an incomplete spec.

Proof required

Submit your elicitation record (meeting notes, workshop outputs, or observation logs for ≥2 sessions with ≥2 different stakeholder roles) and a classified requirements list (≥15 requirements, each labelled functional or non-functional).

What gets checked

  • ≥2 elicitation techniques are documented — not just one interview
  • ≥3 stakeholder roles are represented — not all requirements from a single viewpoint
  • Requirements are classified as functional or non-functional — not all treated identically

Common mistakes

  • Elicitation with only one stakeholder role — functional requirements from the system's primary user will miss constraints that come from operators, administrators, and maintainers
  • Non-functional requirements stated as vague aspirations ('the system should be fast') — every non-functional requirement must have a measurable threshold

Powstik Guide

Records of two elicitation sessions with different stakeholders.

Steps

  1. Pick two stakeholder groups.
  2. Run an interview, workshop or observation.
  3. Record needs in their words.
  4. Turn needs into draft requirements.

Template

| Session | Date | Stakeholder role | Method | Needs raised |
|---------|------|------------------|--------|--------------|
Draft requirements:

What gets sent back

  • Only one stakeholder group.
  • No session records.
  • Requirements invented without input.

Resources

Foundationstart here

Depthgo deeper

What a verifier looks for

  • Confirm ≥2 elicitation techniques are documented with evidence (notes, outputs, or observation log).
  • Confirm ≥3 stakeholder roles are represented — not all requirements from one person.
  • Confirm all non-functional requirements have measurable thresholds — flag any stated as aspirations.

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Write the Software Requirements Specification

2–3 weeks (3–4 hrs/week)

From the elicited and classified requirements in M1, write a complete Software Requirements Specification (SRS) following IEEE 830 or equivalent structured format. Each functional requirement uses 'The system shall...' language and is uniquely numbered (e.g. FR-001). Each non-functional requirement names the threshold (e.g. 'The system shall respond to 95% of user requests within 2 seconds under peak load of 500 concurrent users'). The document includes: scope, constraints, assumptions, system context diagram, and requirement dependencies or conflicts. Write ≥20 requirements in total.

Proof required

Submit your SRS document (≥20 numbered requirements in 'shall' language, with functional/non-functional classification, measurable thresholds on all non-functional requirements, a scope section, and a system context diagram).

What gets checked

  • Every functional requirement uses 'The system shall...' with a unique number — not passive or aspirational language
  • Every non-functional requirement has a measurable threshold — not 'the system should be fast'
  • A system context diagram is included showing the boundary of the system and its external actors/interfaces

Common mistakes

  • Non-functional requirements without thresholds — 'shall be reliable' is not a requirement; 'shall achieve 99.5% uptime over any 30-day period' is
  • No system context diagram — the boundary of the system (what's in scope vs. out of scope) is one of the most important things a requirements specification defines and it is communicated most clearly with a diagram, not prose

Resources

Foundationstart here

Depthgo deeper

What a verifier looks for

  • Confirm every functional requirement uses 'The system shall...' language with a unique identifier.
  • Confirm every non-functional requirement has a quantified threshold — flag any without one.
  • Confirm a system context diagram is present and shows the system boundary and ≥2 external actors.

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Review the SRS with Stakeholders and Resolve Conflicts

1–2 weeks (2–3 hrs/week)

Conduct a structured requirements review with ≥2 stakeholders from different roles. Apply a review checklist: completeness (all use cases covered?), consistency (no conflicting requirements?), testability (can each requirement be verified?), feasibility (are constraints achievable?). Document conflicts found, resolution decisions, and the final agreed requirement count. A requirements specification that has not been reviewed is a hypothesis, not a specification — the review is what converts it.

Proof required

Submit your review record: ≥2 reviewers (names and roles), review checklist completed with findings, ≥3 issues or conflicts identified and resolved, and a brief statement of the agreed final specification scope.

What gets checked

  • ≥2 reviewers from different stakeholder roles — not two reviewers with the same background
  • ≥3 issues or conflicts are documented with resolution decisions — a review with zero findings is not credible for a ≥20-requirement spec
  • Final specification scope is agreed and stated — not left open

Common mistakes

  • A review that produces zero findings — all real requirements specifications have conflicts or ambiguities; a zero-finding review means either the reviewers did not engage critically or the review was not thorough
  • Resolving conflicts by deleting the requirement — conflicts must be resolved by negotiation and a documented decision, not by eliminating one side of the conflict

Powstik Guide

An SRS review with two reviewers and resolved conflicts.

Steps

  1. Send the SRS with a checklist.
  2. Hold the review with two or more people.
  3. Log at least three issues.
  4. Record how each was resolved.

Template

| Reviewer | Role |
|----------|------|
| Issue | Found by | Resolution |
|-------|----------|------------|

What gets sent back

  • Fewer than two reviewers.
  • Fewer than three issues.
  • Issues unresolved.

Resources

Foundationstart here

Depthgo deeper

What a verifier looks for

  • Engineering Design Triad check: M1–M3 together produce a design artifact (SRS with numbered requirements and context diagram), an analysis artifact (elicitation record + review checklist findings), and a documentation artifact (review record with conflict resolutions) — confirm all three types are present.
  • Confirm ≥2 reviewers from different stakeholder roles participated.
  • Confirm ≥3 issues or conflicts are documented with resolution decisions — flag a zero-finding review as not credible.
  • Confirm final specification scope is agreed and stated.
  • The Proof Accessibility Rule applies — IREB CPRE free basics, draw.io (free), Volere free template, and Karl Wiegers free checklists are all accessible without commercial licence.

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