Success of an application often depends on user acceptance. Therefor a discussion of UI requirements are important:
-> How commands are entered - menu, buttons, tollbar
-> The functions of the primary user - data entry clerks strongly object to using a mouse since it slows them down
-> Colours - never forget this 'small' item - you'll crash and burn if the primary client happens to detest, for instance, powder blue.

A sign off on the UI is, sadly, stongly advised.

-Larry



>I am compiling a list of questions to ask before starting a new development
>project. Here's what I have so far, and I'm open to anything else anyone can
>add.
>
>1) What operating systems will the application be run on?
>
>2) What types of PC's will the application be run on? For example,
>pentium III with 256 mg RAM, 80gb HD, ect or something lesser.
>
>3) What type of internet connection will be available to the application's
>users, if any. (Dial-up, network, cable, ect)
>
>4) What is the level of PC experience of the average user?
>
>5) What is the typical screen resolution of the users of this software?
>
>6) Is this a multi-user application. That is, will multiple users be in the
>system at one time?