I always believe that documentation is more important than the code itself.

Code is fantastic for making your application do what it needs to do. But what happens when you add a new team member or begin to use new technology to achieve your objectives? To illustrate the flows within the application code base, you need some form of reference, and code is usually not very good at presenting this overview. Proper documentation is required to describe the code, company lingo, and application flows. There are three levels of documentation and what it does. Macro-level: What exactly does that language mean, and how does the firm operate? Meso level: How do our application's processes flow? Micro-level: What is the purpose of this code and why is it present?