Downloaded from https://www.everyspec.com AMCP 705-198 A typical coding st;heme is one developed putted in various formats convenient for for the COFEC reliability data system 'Ref. use by both contractor and Army program 4). Failure causes and corrective actions are managers. coded. using six digit positions, In this sys- tem reporting code, the first two digits are A separate fixed-formnt routine may be used to identify the failure mode, the second written for each report format required. two digits specify the cause of failure, and When the number of different formats Is the last two digits indicate the corrective small, this procedure is economical.
As is action, Each category can occur in 99 dif- system design progresses, however, reporting forent ways. A master code list is used requirements change. The varying reporting which defines each failure mode, cause, and requirements and the variations in the corrective action. This list can be expanded number of groups using different output as the project progresses, %o that the terms formats can greatly expand the total number need not be defined in advance. A typical of formats needed. Under these circum- master code list Is shown in Fig. 5-2.
atances, the expense of programming a new extraction routine for each new output for- mat can become excessive, 5"2.2 COMPUTER PROGRAMS FOR 'i SDATA BANK ESTABLISHMENT To make a separate extraction routine un- AND UPDATING necessary for generating each output for- Computer programs must be written mat, a variable-format extraction program Cw or can be employed. Such a program corn- acquired which can be used to establish and pensates for the greater programming ex- update the data bank. The program details pense involved with the ability to replace ex- depend. of course, on the computer on whiclh the system is implemnented.
Sort a number of fixed-format extraction routines; and merge routines must be available for With a variable-format extraction program, anrting ew dutinLmuto the desile sequnce personnel not trained in computer pro- s•orting new data, into the desired sequence gramming can write requests for a variety and merging it with the existing file to pro- of report formats in some form of a user duce a new file. Programs written in a re- re port generator language such os RPG permit anguage. A user language can be developed the structure of the data base to be altered specifically for the system in question or a and information to be added or deleted as commercially available system, such as RPG.
Can be used. Variable-format extrac- desired. Generally, one ought to use exist- tion programs can use standard output ing programs as much as feasible; they ought formats. However, the specific type of to be programs already running on the com- information listed in any output is estab- puter available to you. lished by the user, filling out a standard re- quest form. Outputs thus may be tailored 5-2.3 EXTRACTION ROUTINES AND easily to the exact needs of the user, PROGRAMS 5-2,4 PROGRAMMING EXTRACTION Programs must be developed or acquired ROUTINES which output prescribed formats using selected parameters obtained from the data Two general types of report generating bank.
Outputs to paper, or files can be programs can be developed: (I ) those using . prepared by the computer through the use fixed-format extraction routines, and (2) the '* a of appropriate extraction routines and the automatic variable-format extraction and T! Information stored in the data bank, 1he accumulation program. Each of these two information in the data bank must be out- programs will be discussed. 5-10I~J