Software change management decides:
Software change management decides how to manage alterations, irrespective of the stage of the lifecycle of a product.
The objective of change management is to ensure that standardized methods and procedures are used for efficient and prompt handling of all changes to control IT infrastructure, in order to minimize the number and impact of any related incidents upon service.
Change is inevitable in all stages of a software project. Change management will help you direct and coordinate those changes so they can enhance not hinder your software.
The only constant in software development is change. From the original concept through phases of completion to maintenance updates, a software product is constantly changing. These changes determine whether the software meets its requirements and the project completes on time and within budget. One of your main goals as project manager is to manage software change.
The sources of change can be classified as planned development, unexpected problems, or enhancements.