Framework

Application framework used to implement the structure of an application for an operating system (Wikipedia).

These are now very popular, so popular and used for so many things, they have become hard to define. What are they?

Software developers will tell you, upfront, that this framework is similar to that framework, but is better (or worse) in these situations.

They then expect you to try them out for yourself. And tell others what you found, or even write a book about it!

Computers are so sensible! They have to be, they are only machines. And they don't have to worry about being cooked up for dinner.

People are not so sensible, they will write a poem and not worry about what it means.