03332nas|a2200409 i 4500 20260818223503.0 130598s1980 th uzm rtt 00| a1eng d .b10656194 AIT Thesis no. CA-80-20 Wang, Doe-Ming Supporting the structured development of PL/I software systems Bangkok : Asian Institute of Technology, 1980 iv, 45 p. Thesis ; no. CA-80-20 A thesis submitted in partials fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1980 In recent year s, Chief Programmer Team, Top-Down Development, Structured Programming, and Development Support Library which represent the organization, design strategy, programming technique and supporting tool respectively have been treated as a hierarchical set of components in developing a reliable software system. In this study, Top-Down Development (in particular, the structure of modular programs as in Turner (1980)) and Development Support Library are studied. It is assumed that the pure tree structure is the best way to organize program modules when designing any software system. A software tool called PL/I Support System (PLISS) is designed and implemented to support the development of software system in pure tree structure. The application of Top-Down Development tends to proliferate the number of independently compiled modules that comprise the system and al so places certain demands on the language used for actual system implementation. These demands deal primarily with (1) specifying intermodule relationship; (2) propagating intermodule modification; and (3) Maintaining consistency in the realization of abstraction. In this thesis, we discuss the implications of these demands on a specific language PL/I. From this discussion the PL/I Support System based on a Programming Production Library is established. Finally, the elements and the functions of PL/I Support System are described. PL/I (Computer program language) Gupta, Gopal K., Chairperson Krisorn Jittorntrum, Examination Committee Huynh, Ngoc Phien, Examination Committee Ret-Ser Engineering Agency (R.O.C.), Scholarship Donor Asian Institute of Technology. Thesis ; no. CA-80-20 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B21940 .b10656194 mnait x 250319 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050000528835 CREATED : 1994-05-19 RECORD # : i10842974 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050000528843 CREATED : 1994-05-19 RECORD # : i10842986 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160065396 CREATED : 2016-05-31 RECORD # : i13006800 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 116151 116151 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. CA-80-20 30050000528835 2026-08-18 22:35:03 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. CA-80-20 30050000528843 2026-08-18 22:35:03 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. CA-80-20 30050160065396 2026-08-18 22:35:03 2026-08-18 40