Meaning
Inventory lists of software components identify every library and third party tool used to build an application. A software bill of materials provides transparency into the supply chain of a digital product. It records the version number and license type for every dependency.
This document provides the basis for verifying that a product is free from known security vulnerabilities.
Component Tracking
Engineers update the list every time they add a new feature or update an existing library. The software bill of materials serves as a permanent record of the ingredients within the code. Accuracy here allows the team to respond quickly when a new security threat is discovered.
Security Governance
Vulnerability scanners compare the listed components against databases of known exploits. By maintaining a software bill of materials, a company can prove to a buyer that the software is secure. The boundary of the scan is the code owned by the entity.
License Verification
Legal teams use the list to ensure that no open source licenses restrict the sale of the product. Because a software bill of materials tracks the legal terms for each component, it prevents future disputes over ownership. The cost of an error is the potential loss of the right to distribute the software.
