Identify the problem (user pain, data supporting it), proposed solution (high-level approach), target users (personas, segments), success criteria (goals, metrics), and constraints (technical, business, timeline). See Common Patterns for typical problem types.

Step 2: Choose format

For simple features needing quick approval → Use resources/template.md one-pager format (1 page, bullets). For complex features/products requiring detailed requirements → Use resources/template.md full PRD format (1-2 pages). For writing guidance and structure → Study resources/methodology.md for problem framing, metric definition, scope techniques.

Step 3: Draft one-pager

Create one-pager-prd.md with: problem statement (user pain + why now), solution overview (what we're building), user personas and use cases, goals with quantified metrics, in-scope flows and out-of-scope items, constraints and assumptions, open questions to resolve. Keep concise—1 page for one-pager, 1-2 for PRD.

Step 4: Validate quality

Self-assess using resources/evaluators/rubric_one_pager_prd.json. Check: problem is specific and user-focused, solution is clear without being overly detailed, metrics are measurable and have targets, scope is realistic and boundaries clear, constraints acknowledged, open questions identified. Minimum standard: Average score ≥ 3.5.

Step 5: Review and iterate

Share with stakeholders (PM, design, engineering, business). Gather feedback on problem framing, solution approach, scope boundaries, and success metrics. Iterate based on input. Get explicit sign-off before moving to detailed design/development.

Common Patterns

By Problem Type

User Pain (Most Common):

Pattern: Users can't do X, causing friction Y
Example: "Users can't search by multiple filters, forcing 10+ clicks to find items"
Validation: User interviews, support tickets, analytics showing workarounds

Competitive Gap:

Pattern: Competitor has feature, we don't, causing churn
Example: "Competitors offer bulk actions. 20% of churned users cited this"
Validation: Churn analysis, competitive analysis, win/loss interviews

Strategic Opportunity:

Pattern: Market shift creates opening for new capability
Example: "Remote work surge → need async collaboration features"
Validation: Market research, early customer interest, trend analysis

Technical Debt/Scalability:

Pattern: Current system doesn't scale, blocking growth
Example: "Database queries timeout above 100K users. Growth blocked."
Validation: Performance metrics, system capacity analysis

By Solution Complexity

Simple Feature (Weeks):

Clear requirements, minor scope
Example: Add export to CSV button
One-Pager: Problem, solution (1 sentence), metrics, constraints

Medium Feature (Months):

Multiple user flows, some complexity
Example: Commenting system with notifications
PRD: Detailed flows, edge cases, phasing (MVP vs v2)

Large Initiative (Quarters):

Cross-functional, strategic
Example: Mobile app launch
Multi-Page PRD: Break into phases, each with own one-pager

By User Segment

B2B SaaS:

Emphasize: ROI, admin controls, security, integrations
Metrics: Adoption rate, time-to-value, NPS

B2C Consumer:

Emphasize: Delight, ease of use, viral potential
Metrics: Daily active users, retention curves, referrals

Enterprise:

Emphasize: Compliance, customization, support
Metrics: Deal size impact, deployment success, enterprise NPS

Internal Tools:

Emphasize: Efficiency gains, adoption by teams
Metrics: Time saved, task completion rate, employee satisfaction

Guardrails

Problem:

Specific, not vague: ❌ "Users want better search" → ✓ "Users abandon search after 3 failed queries (30% of sessions)"
User-focused: Focus on user pain, not internal goals ("We want to increase engagement" is goal, not problem)
Validated: Cite data (analytics, interviews, support tickets) not assumptions

Solution:

High-level, not over-specified: Describe what, not how. Leave design/engineering latitude.
Falsifiable: Clear enough that stakeholders can disagree or suggest alternatives
Scope-appropriate: Don't design UI in one-pager. "Filter panel" not "Dropdown menu with checkbox multi-select"

Metrics:

Measurable: Must be quantifiable. ❌ "Improve UX" → ✓ "Reduce time-to-complete from 5 min to 2 min"
Leading + Lagging: Include both (leading: adoption rate, lagging: revenue impact)
Baselines + Targets: Current state + goal. "Increase NPS from 40 to 55"

Scope:

Crisp boundaries: Explicitly state what's in/out
MVP vs Future: Separate must-haves from nice-to-haves
User flows: Describe key happy path, edge cases

Constraints:

Realistic: Acknowledge tech debt, dependencies, timeline limits
Trade-offs: Explicit about what we're sacrificing (speed vs quality, features vs simplicity)

Red Flags:

Solution looking for problem (built it because cool tech, not user need)
Vague metrics (no baselines, no targets, no timeframes)
Scope creep (everything is "must-have")
No constraints mentioned (unrealistic optimism)
No open questions (haven't thought deeply)

Quick Reference

Resources:

resources/template.md - One-pager and PRD templates with section guidance
resources/methodology.md - Problem framing techniques, metric trees, scope prioritization, writing clarity
resources/evaluators/rubric_one_pager_prd.json - Quality criteria

Output: one-pager-prd.md with problem, solution, users, goals/metrics, scope, constraints, open questions

Success Criteria:

Problem is specific with validation (data/research)
Solution is clear high-level approach (what, not how)
Metrics are measurable with baselines + targets
Scope has crisp in/out boundaries
Constraints acknowledged
Open questions identified
Stakeholder sign-off obtained
Score ≥ 3.5 on rubric

Quick Decisions:

Simple feature, quick approval? → One-pager (1 page, bullets)
Complex feature, detailed handoff? → Full PRD (1-2 pages)
Multiple phases? → Separate one-pager per phase
Strategic initiative? → Start with one-pager, expand to multi-page if needed

Common Mistakes:

Problem too vague ("improve experience")
Solution too detailed (specifying UI components)
No metrics or unmeasurable metrics
Scope creep (no "out of scope" section)
Ignoring constraints (unrealistic timelines)
No validation (assumptions not data)
Writing for yourself, not stakeholders

Key Insight: Brevity forces clarity. If you can't explain it in 1-2 pages, you haven't thought it through. One-pager is thinking tool as much as communication tool.

Format Tips:

Use bullets, not paragraphs (scannable)
Lead with problem (earn the right to propose solution)
Quantify everything possible (numbers > adjectives)
Make scope boundaries explicit (prevent misunderstandings)
Surface open questions (show you've thought deeply)

Stakeholder Adaptation:

For Execs: Emphasize business impact, metrics, resource needs
For Engineering: Technical constraints, dependencies, phasing
For Design: User flows, personas, success criteria
For Sales/Marketing: Competitive positioning, customer value, launch timing

one-pager-prd

One-Pager PRD

Workflow