To start with, you need to understand the value of the application, what the customer and business need, what the application will bring to its users, and how it can help its users to achieve their goals. This is the foundation of building an application. As a full-stack developer, you need to analyze the requirement and see features that are missing or incomplete. You should no longer be satisfied with simply accepting requirements. You will need to detect the flaws in the business logic or even propose new ideas, because if the requirements don't get sorted out, sooner or later, issues will pop up. And the effort required to fix those issues is usually not insignificant.

As a software developer, whenever you work on a feature or bug fixing, you will need to understand its requirements and the business logic behind it. If you don't feel that you are good at requirement analyzing, most of the time, it is because you need more analytical thinking. Next time, ask more questions, such as the following:

• Why do we need this feature?
• What is the business value of this feature?
• Does this feature fit into the whole application?
• Are there any improvements we can do to make it better?