Requirements Prioritization Skill
Purpose
Systematically prioritize requirements to ensure the most valuable features are delivered first, managing scope and stakeholder expectations effectively.
When to Use
- •Managing product backlog
- •Planning releases or sprints
- •Resolving conflicting stakeholder needs
- •Allocating limited resources
- •Defining MVP (Minimum Viable Product)
Prioritization Frameworks
1. MoSCoW Method
Best for: Fixed deadlines, scope negotiation
- •Must Have (M): Critical for success. Non-negotiable. If missed, launch fails.
- •Should Have (S): Important but not vital. Can be worked around painfully.
- •Could Have (C): Desirable/Nice-to-have. Low impact if left out.
- •Won't Have (W): Agreed to leave out of this release (maybe later).
Example: E-commerce Checkout
- •Must: Guest checkout, Credit card payment.
- •Should: PayPal integration, Address autocomplete.
- •Could: Gift wrapping options, Crypto payment.
- •Won't: Voice-activated checkout (for now).
2. RICE Scoring
Best for: Data-driven decision making, comparing disparate features.
$$ RICE Score = \frac{Reach \times Impact \times Confidence}{Effort} $$
- •Reach: Number of people/events per period (e.g., 1000 users/month).
- •Impact:
- •3 (Massive)
- •2 (High)
- •1 (Medium)
- •0.5 (Low)
- •0.25 (Minimal)
- •Confidence:
- •100% (High - have data)
- •80% (Medium - some data/intuition)
- •50% (Low - wild guess)
- •Effort: Person-months (e.g., 2 months).
3. Kano Model
Best for: Customer satisfaction and differentiation.
- •Basic (Threshold): Must be present. Customer neutral if there, dissatisfied if absent. (e.g., Car brakes).
- •Performance (Linear): The more, the better. (e.g., Car gas mileage).
- •Excitement (Delighters): Surprise features. High satisfaction if present, neutral if absent. (e.g., Free sunroof).
4. WSJF (Weighted Shortest Job First)
Best for: Agile/SAFe environments, maximizing economic flow.
$$ WSJF = \frac{Cost of Delay (CoD)}{Job Size (Duration)} $$
Cost of Delay components:
- •User-Business Value (Value to user/business)
- •Time Criticality (Is there a deadline/decay?)
- •Risk Reduction/Opportunity Enablement (Does it reduce risk/unlock future value?)
Facilitating Prioritization Workshops
Preparation
- •List Requirements: Ensure all requirements are gathered and clear.
- •Invite Stakeholders: Decision makers, technical leads, business owners.
- •Define Criteria: Agree on the framework (e.g., "We will use MoSCoW").
Process (e.g., Buy a Feature)
- •Give stakeholders "play money" budget (e.g., $100).
- •Assign "prices" to requirements based on effort/cost.
- •Ask stakeholders to "buy" the features they want.
- •Discuss results: What was bought? What was ignored?
Process (e.g., $100 Test)
- •Give each stakeholder 100 points.
- •Ask them to distribute points across requirements based on importance.
- •Sum up points to see group consensus.
Common Challenges & Solutions
| Challenge | Solution |
|---|---|
| Everything is a "Must" | Force ranking (1 to N). Use "Buy a Feature" with limited budget. |
| HIPPO (Highest Paid Person's Opinion) | Use data-driven methods (RICE). Visualize trade-offs. |
| Conflicting priorities | Link back to business goals/KPIs. Facilitate negotiation. |
| Dependencies ignored | Technical team must review to identify dependency chains (A must be done before B). |
Business Value vs. Technical Necessity
- •Business Priority: Value provided to the customer/business.
- •Technical Priority: Architectural needs, dependencies, debt reduction.
- •Final Priority: Start where Business Value is high AND Technical Risk is managed.
Output
- •Prioritized Backlog: Ordered list of requirements.
- •Release Map: What goes into Release 1, 2, 3.
- •Descope List: Explicit list of what is NOT being done.
Reference
- •Wiegers, K. & Beatty, J. (2013). Software Requirements.
- •Intercom on Product Management (RICE).
- •SAFe Framework (WSJF).