What is Agile Estimation?

Agile estimation helps teams:

• Plan sprints effectively
• Track progress
• Manage expectations
• Improve accuracy

Popular Estimation Techniques

1. Planning Poker

Planning poker uses cards to estimate:

• Fibonacci numbers
• Team consensus
• Simultaneous voting
• Group discussion

2. T-Shirt Sizing

T-shirt sizing uses sizes to estimate:

• XS, S, M, L, XL
• Relative complexity
• Quick estimation
• Visual comparison

3. Relative Sizing

Relative sizing compares stories:

• Using reference stories
• Comparing complexity
• Team discussion
• Consensus building

Choosing the Right Technique

1. Team Size

Consider team size when choosing:

• Small teams: Planning poker
• Large teams: T-shirt sizing
• Mixed teams: Relative sizing
• Remote teams: Online tools

2. Project Type

Match technique to project:

• Complex: Planning poker
• Simple: T-shirt sizing
• Mixed: Relative sizing
• New: Start simple

3. Team Experience

Consider team experience:

• New teams: T-shirt sizing
• Experienced: Planning poker
• Mixed: Relative sizing
• Learning: Start simple

Best Practices

1. Keep Stories Small

Small stories are easier to estimate:

• More accurate
• Better planning
• Clearer scope
• Faster delivery

2. Use Reference Stories

Reference stories help by:

• Providing baselines
• Maintaining consistency
• Improving accuracy
• Building confidence

3. Regular Practice

Practice improves estimation:

• Team learns
• Accuracy improves
• Speed increases
• Confidence grows

Common Mistakes to Avoid

• Don't convert to hours - Focus on relative complexity
• Don't skip discussion - Understanding is crucial
• Don't estimate alone - Use team wisdom
• Don't ignore velocity - Track and improve

Tools for Agile Estimation

Modern tools like EstimateIt make estimation easier. Look for features like:

• Multiple techniques
• Team collaboration
• Progress tracking
• Velocity charts
• No registration required for quick setup

Conclusion

Agile estimation is a powerful tool for teams. By choosing the right technique and following best practices, you can improve planning and delivery.

Remember, the goal isn't perfect estimates—it's better planning and team alignment. The right estimation technique provides the framework for these crucial conversations.