Frameworks are general code libraries that developers use to build their software on. Frameworks are usually specific to a domain, like web frameworks or database frameworks. The benefit of frameworks is the productivity that they provide. With the right framework we can avoid writing low-level functionality and instead focus on our domain problems we need to solve. Frameworks are building blocks and should be used as such, if you have a bad framework or need to invest too much into using the framework, the gains are counter productive.
It may be a good strategy to write your own framework, and in the lecture we look at design patterns that are useful in creating frameworks. We will also look at the Spring framework that is a good example of a well design framework.
Cover image by Javier Corbo