You could try

http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=Interface+design+simplicity

My opinion is that simpler is better - if you sell a program to a fish seller, his primary interest is in selling fish, not learning your interface quirks. In my Macintosh days (computers, not clothing) we used to talk about interface transparency, where you hardly notice the way you are doing something. We also had the 'principle of least surprise' which is, that you user should never say "Oh! that's not what I expected to happen".

>Hi Therry,
>
>Thanks for your comments. I don't have quick books but I've used QuickTax which has a pretty good interface.
>
>I'm using West Wind Connection as my web framework. Most of the screens are hand coded. I guess that is another reason that I use simple forms.
>
>Thanks again.
>
>Paul
>
>
>>If the controls simply popup more form nests for the end user to deal with - then perhaps your right. There can be too many controls. A well integrated use of navigators, tool bars and buttons and menus can be helpful as long as the available service doesn't conflict with the active service. Lots of times there are shared control functions. A tool bar button - a menu and a cmd button will push the same service to the desktop. I guess this redundancy is good - some users have experience with menus - others just buttons. A well structured and written application will always be simple to use. The user has enough decisions to make. Why force them to deal with a non-intuitive interface.
>>
>>Too many nested froms can be confusing. Tool tips can be helpful. Just sampling a well designed commercial interface - like Quick Books - would be helpful for many developers. Imitate the big boys!
>>
>>Are you using a commercial framework?
>>
>>
>>>Hi,
>>>
>>>I believe that simple screens (both client/server and HTML) with fewer controls get fewer telephone calls for support from clients.
>>>
>>>I'm looking for some studies or information that discuss this issue. I'd like to reference these studies in a note on screen and menu design that I'm writing for a client.
>>>
>>>Thanks in advance.
>>>
>>>
>>>Paul de Niverville