Reverse engineering is the process of dissecting a product to understand how it was built, often for the purpose of making changes or improvements. While this phrase has become widely adopted, it is not the only term used to describe this practice. Other options include "back engineering," "backward engineering," "de-engineering," and "disassembly." Some professionals have also used more specific terminology based on the specific field, such as software "cracking" or "reversing" to describe the process of analyzing and modifying software code. Regardless of the terminology used, reverse engineering is an important tool in the creation of new and improved products.