On Thu, 13 Dec 2007 14:06:39 -0600, Rick Fochtman wrote: >... Quite often, in the early stages of an application system, >invalid data would cause a failure because the program wouldn't >recognize it. Much of our data was received via 3270 terminals and the >most common error was using a letter "O" instead of a numeric "0".
Creating good test data is a skill that many programmers have failed to master. At my first application programming job, most of the new programmers were given an assignment of a training program. I never had that assignment, but from what I understand of it, the specifications called for card input and it was expected that all input would be validated with appropriate output produced. When the programmer thought that the program was ready, the boss would give them an object deck for input. Most of the time there were S0C7 abends. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
