Boehm's Top Ten Risk Items: Type of Risks
Personnel shortfalls (managerial risk)
Unrealistic schedules and budgets (managerial risk)
Developing wrong software functions (technical risk)
Developing wrong interface (technical risk)
Unnecessary perfectionism (managerial risk)
Continuous requirements changes (managerial risk)
Shortfalls in outsourced tasks (technical/managerial risk)
Shortfalls in outsourced components (technical/managerial risk)
Realtime performance shortfalls (technical risk)
Straining computer science capabilities (technical risk)