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Tdb 06-87 P.29-33 Data File Specification Disclosure Number: IPCOM000039392D
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-01

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Talley, TM [+details]


This article describes the use of the ISPF File Tailoring Facility as a method for storing data in a convenient and flexible manner and the use of a program to read the recorded data. The traditional method of storing data in a file is to specify field positions and lengths within a record, then write the record to the file. The major disadvantage of this method is that, each routine reading or writing data into the file must be modified if the data format changes, making maintenance costs high. This is particularly a problem when the data changes frequently, either in the number, length, or position of the fields. Using the IBM Program Product ISPF, along with a small amount of code, the maintenance effort can be significantly reduced.