Requirements documentation
A structured record of all project and product requirements, including attributes such as source, priority, and acceptance criteria. It enables analysis, agreement, traceability, and validation across the life cycle.
Definition
A structured record of all project and product requirements, including attributes such as source, priority, and acceptance criteria. It enables analysis, agreement, traceability, and validation across the life cycle.
Key Points
- Captures business, stakeholder, solution, transition, quality, and project requirements in one place.
- Each requirement includes attributes like unique ID, description, rationale, acceptance criteria, priority, owner, and status.
- Clarity is critical: requirements should be unambiguous, testable, feasible, and necessary.
- Acts as the basis for scope definition, design decisions, estimation, and test planning.
- Versioned and baselined; changes are controlled through an agreed change process.
- Format can vary: document, spreadsheet, user stories with acceptance criteria, or a repository.
Purpose of Analysis
- Transform raw stakeholder needs into clear, testable, and prioritized requirements.
- Resolve conflicts, eliminate ambiguity, and align requirements to objectives and value outcomes.
- Identify constraints and nonfunctional criteria that affect design and delivery.
- Prepare requirements for validation, estimation, and traceability.
Method Steps
- Plan structure: define the template, attributes, and storage tool for requirements.
- Consolidate inputs: gather elicitation notes, models, and existing policies or standards.
- Analyze and refine: decompose, clarify wording, add acceptance criteria, and remove duplicates.
- Prioritize and categorize: group by type, map to objectives, and apply priority or MoSCoW levels.
- Review with stakeholders: verify understanding, negotiate trade-offs, and record agreements.
- Baseline and control: assign versions, set approval status, and apply change control.
- Maintain and trace: link requirements to objectives, scope, deliverables, tests, and defects.
Inputs Needed
- Business case and project charter for goals, constraints, and success measures.
- Stakeholder register and roles for sources, owners, and approvers.
- Elicitation outputs such as interview notes, workshop results, and observations.
- Policies, standards, regulatory requirements, and contractual obligations.
- Existing product documentation, process maps, and data models if applicable.
Outputs Produced
- Requirements documentation with complete attributes, acceptance criteria, and status.
- Prioritized requirement set aligned to objectives and constraints.
- Links or references for traceability to scope elements, designs, tests, and releases.
- Updates to backlog items or user stories ready for planning and estimation.
- Assumptions and constraints updates derived from clarified requirements.
Interpretation Tips
- Read each requirement as an atomic, testable statement that delivers value and is feasible.
- Check attributes: clear rationale, source, and priority help with trade-off decisions.
- Confirm acceptance criteria are objective, measurable, and verifiable.
- Ensure traceability forward to deliverables and tests, and backward to objectives.
- Use version and status fields to understand what is proposed, approved, or changed.
Example
A team documents a requirement as:
- ID: R-014; Type: Quality; Priority: High; Source: Operations; Owner: Product Manager.
- Description: The solution shall process submitted requests within 2 seconds under normal load.
- Rationale: Reduce user wait time to improve satisfaction and throughput.
- Acceptance Criteria: 95% of 1,000 test requests complete in 2 seconds or less in staging.
- Trace Links: Objective OBJ-2, Design Spec DS-3, Performance Test PT-7.
Pitfalls
- Ambiguous wording that allows multiple interpretations.
- Missing acceptance criteria, making validation subjective.
- Over-specifying design choices instead of stating needs and constraints.
- Neglecting nonfunctional requirements like security, performance, or usability.
- Inadequate stakeholder review leading to late rework and change churn.
- Poor version control and traceability that obscure impacts of change.
PMP Example Question
During planning, stakeholders disagree about whether a proposed feature meets the agreed need. What should the project manager review first to resolve the disagreement?
- Stakeholder engagement plan.
- Requirements documentation.
- Risk register.
- Communications management plan.
Correct Answer: B — Requirements documentation
Explanation: It contains the approved, detailed requirements and acceptance criteria used to assess alignment and verify completeness. Reviewing it clarifies intent and provides a basis for decision making.
HKSM