Modern Programming Practices Study Report.
W. E. Branning, D. M. Willson, J. P. Schaenzer, W. A. Erickson · Defense Technical Information Center (DTIC) · 1977
This technical report and report summary show that for the surveyed program developments: (a) Top-down program development reduced cost by 15%. (b) Regardless of the method for development used labor was generally distributed as follows: (1) 10% for analysis, (2) 30% for design, (3) 35% for coding and debugging, (4) 25% for testing. (c) Program testing was automated using real-time on line-simulation, scenario control, data recording and reduction. (d) Software quality assurance and configuration management were formal disciplines. (e) Through system design, operating system software provided real-time on-line casualty recovery of system functions from hardware failures. (f) Through system design, operating system software allowed for on-line maintenance testing of hardware equipments while continuing real-time operation. (g) Software tools found effective on the surveyed programs were described and evaluated. (Author)