14 DB2 UDB V8 and WebSphere V5 Performance Tuning and Operations Guide
How often those situations will arise and at what times of the hour, day,
month, or year
Whether those situations will also require additional uses of existing programs
Which systems the program will run on
How much data will be handled, and from where
Whether data created by or for the program will be used in other ways
Unless these ideas are elicited as part of the design process, they will probably
be vague, and the programmers will almost certainly have different assumptions
than the prospective users. Even in the apparently trivial case in which the
programmer is also the user, leaving the assumptions unarticulated makes it
impossible to compare design to assu ...