How would I get started implementing access control for an business-to-business web application.<p>Any tips would do - design guidelines, warnings, frameworks, implementation approaches, libraries to use, etc.
If you are familiar with rails (although it's worth learning if only for this), then look into <a href="http://wiki.github.com/stffn/declarative_authorization" rel="nofollow">http://wiki.github.com/stffn/declarative_authorization</a><p>I use it in 99% of all my projects to implement just that...
That is an extremely broad question, and the answer depends on your application.<p>I suggest you outline what type of application you're building and related requirements, and post that to <a href="http://stackoverflow.com" rel="nofollow">http://stackoverflow.com</a>