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In order to avoid the need to change as much as possible and to ensure the high stability of the requirements analysis, the following methods can be used:

(1) Professional training for developers. Because the developer does not necessarily understand the domain of the system being developed, in order to better understand the user's needs, the developer will be trained in the field in the initial stage of the requirements analysis.

(2) The developer and the user collaborate and communicate. Developers should carefully listen to user requirements and organize and analyze them as they make changes to their needs. Analyze the reasons for the change in demand and propose a viable alternative; and explain to the user the adverse consequences of these changes to the development of the entire project.

(3) Contractual constraints. Since the change in demand may affect the entire project, the developer and the user can add some relevant contract terms to the demand change when signing the project contract.

(4) Establish requirements documents and perform version control. The end result of the requirements analysis is a document that the customer and developer agree on the product being developed. With this document, even if the role of the developer changes, it will not affect the preliminary work of the needs analysis. Each change in demand is identified by a new version.

(5) Needs review and establishment of demand baseline. In order to let developers understand the needs of users in detail, so that different people can verify the requirements from different angles, as the demander, users can often put forward many valuable opinions during the requirements review process. At the same time, it is also an opportunity for users to finalize the requirements, which can effectively reduce the occurrence of demand changes. After the requirements have been formally reviewed and approved, the requirements baseline should be determined, and further demand changes will be based on this baseline and in accordance with the project-defined change process. Setting a demand baseline minimizes the hassle caused by the change.