Best Solution for Caching

Question

Where is the best place to implement caching in a web based app?

• At the presentation layer (hope not)?
• At the Business Logic Layer?
• At the da

Answer 1

You should consider caching at EVERY layer.

The best place to cache is as near to the client request as possible (so you do as little work as possible to serve the response). In web apps, yes at the presentation layer, at the business layer and the data layer.

(Side note: If you are basically peppering your business logic code with caching logic here and there, you should really look into seperation of concerns to avoid your code becoming a big ball of mud :-) )