-e Problem Trends Some"Data"(Myths? Why Hard? Syllabus The development of large applications in excess of 5000 function points(500, 000 LoC)is one of the most risky business undertakings in the modern. world(Capers Jones) The risks of cancellation or major delays rise rapidly as the overall application size increases(Capers Jones) 65%of large systems(over 1,000,000 LOC)are cancelled before completion 50% for systems exceeding half million LOC 25 for those over 100 000 loc Failure or cancellation rate of large software systems is over 20%(Capers Jones) Copyright Nancy Leveson, Sept 1999✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆✆ Problem Trends Why Hard? ✝ Some "Data" (Myths?) ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ ✝ Slyllabus The development of large applications in excess of 5000 function points (~500,000 LOC) is one of the most risky business undertakings in the modern. world (Capers Jones) The risks of cancellation or major delays rise rapidly as the overall application size increases (Capers Jones): 65% of large systems (over 1,000,000 LOC) are cancelled before completion 50% for systems exceeding half million LOC 25 % for those over 100,000 LOC Failure or cancellation rate of large software systems is over 20% (Capers Jones) Copyright Nancy Leveson, Sept. 1999 c ✞