List different methods to gather project requirements?

The methods are:

• Brainstorming: This method means the collection of ideas and solutions to the problem of common people.
• Document Analysis: This method consists of reviewing the existing document of the system. It gives ample knowledge of the system.
• Focus Group: This method is used to collect feedback from the users or people.
• Interface analysis: Interface can be a human or a machine. The interface is the integration of the system with the external system. In this, the system is analyzed with the external system so that the project can perform better.
• Interview: In this process, an interview of stakeholder and user is taken place so that the perspective of them can be understood.
• Observation: An analyst from the interview observes the key points that can help in developing a group. They analyze steps, pain points, the process flow, and opportunities to improve the project.
• Prototyping: It is used to collect the requirements to build the initial version of the design
• Survey: It consumes a lot of time for the interview so a survey is held where the required questions are asked to the customer and their answers are analyzed.