Effort Estimator

Estimate development effort from scope, changed files, risk, and testing cost.

Size Bands

• XS: <30 LOC, <=1h, high confidence.
• S: 30-100 LOC, 0.5d, high confidence.
• M: 100-200 LOC, <=1d, medium confidence.
• L: 200-400 LOC, 2-3d, low confidence, split recommended.
• XL: >400 LOC, must split.

Modifiers

• New tech or pattern: +50%.
• External dependency: +30%.
• Unclear requirements: +50%.
• Complex testing: +30%.