Linked by Nicholas Blachford on Wed 11th Aug 2004 07:53 UTC
Editorial Computers are complex systems but it's a mistake to assume they need to be complex to use. However, usability is not as easy as it may first seem. It is a different discipline from software development lacking the strict logic or having a "right way". There are only differing requirements and differing collections of guidelines. Making things easy is difficult.
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Re: John Nilsson (IP: ---.hg.hs.bonet.se)
by drsmithy on Thu 12th Aug 2004 11:34 UTC

Why should a new system even allow such horrible things as applications?!?

This is an excellent point. However...

The ONLY motivation for collecting a large amount of REIMPLEMENTED functionallity in an application is to hinder code reuse. IOW bad design.

DLL's are by definition code duplication.


Uh, no. DLLs are by definition code *reuse*, the complete opposite.

If the system strictly forbade code duplication dll hell wouldn exist.

DLL hell exists *because* of people trying to avoid code duplication.

System componets should not depend on other system compontens, it should only depend on a data format, which component that provides the data should be of no concern.

If you want to minimise code duplication, system components have to rely on other system components.

For example, unless you want to duplicate the code in a standard file selector in every single "application" (and "applications" must exist programmatically, even if they don't in the UI) then you need a "file selector" component - and every "application" that needs to select files will rely on that "file selector" component.