-e Problem Trends Why Hard? Syllabus And yet more Of completed projects, 2/3 experience schedule delays and cost overruns( Capers Jones)[bad estimates?] 2/3 of completed projects experience low reliability and quality problems in first year of deployment (Jones) Software errors in fielded systems typically range from 0. 5 to 3.0 occurrences per 1000 lines of code( Bell Labs survey) Civilian software: at least 1 00 english words produced for every source code statement Military: about 400 words(Capers Jones Copyright Nancy Leveson, Sept 1999
☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛☛ Problem Trends Why Hard? Slyllabus And Yet More ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ ☞ Of completed projects, 2/3 experience schedule delays and cost overruns (Capers Jones) [bad estimates?] 2/3 of completed projects experience low reliability and quality problems in first year of deployment (Jones). Software errors in fielded systems typically range from 0.5 to 3.0 occurrences per 1000 lines of code (Bell Labs survey). Civilian software: at least 100 English words produced for every source code statement. Military: about 400 words (Capers Jones) c Copyright Nancy Leveson, Sept. 1999 ✌
-e Problem Trends Why Hard? Have you ever been on a project where the Syllabus software was never finished or used? What were some of the problems? cy Leveson, Sept. 1999
Problem Trends Why Hard? Slyllabus Have you ever been on a project where the software was never finished or used? What were some of the problems? c Copyright Nancy Leveson, Sept. 1999 ✍