In this two-part series, Eric Arno Hiller interviews Spend Matters founder, Jason Busch, about the growth of the market of Product Cost Management software and the state of the art today.   A lot has happened in the world of procurement software in the last 20 years. Purchasing has added a lot of new tools to what was mostly a relationship-focused discipline. These developments include: Data-rich environments of spreadsheets, MRP and ERP systems Supply chain management and supplier relationship management…