Shaun Snapp is a longtime implementer of ERP and advanced planning systems. Shaun Snapp is the Founder and Editor of SCM Focus. SCM Focus is one of the largest independent supply chain software analysis and educational sites on the Internet. He maintains a strong interest in comparative software design, and works both in SAP APO, as well as with a variety of best-of-breed vendors. Shaun is an author of many books including The Bill of Materials in Excel, ERP, Planning and PLM/BMMS Software.