Software Estimation

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Standish Group 2015 Chaos Report

Smaller projects have a much higher likelihood of success than larger ones:

Project Size Successful Challenged Failed
Grand 2% 7% 17%
Large 6% 17% 24%
Medium 9% 26% 31%
Moderate 21% 32% 17%
Small 62% 16% 11%
Total 100% 100% 100%

Ranked success factors:

Factors of Success Points Investment
Executive Sponsorship 15 15%
Emotional Maturity 15 15%
User Involvement 15 15%
Optimization 15 15%
Skilled Resources 10 10%
Standard Architecture 8 8%
Agile Process 7 7%
Modest Execution 6 6%
Project Management Expertise 5 5%
Clear Business Objectives 4 4%

Delivering large-scale IT projects on time, on budget, and on value