Imagine you are trying to build a big Lego castle with a bunch of your friends. You each have different Lego pieces and different instructions on how to put them together. But, you all want to make sure that the castle is built correctly and that it looks good in the end.
Build management is like the person in charge of making sure everyone has the right Lego pieces and instructions, and that everything is put together correctly in the end. They help everyone work together efficiently and make sure the final product looks great.
In the real world, build management is used in software development to help a team of developers build and test code efficiently. They make sure that each developer has the right code and tools to work on, and that the final product is tested thoroughly to make sure it works correctly. This helps the team work together smoothly and produce high-quality software.