Software vendors are just beginning to offer "on-demand" versions of their applications for the management of supply-chain processes. Nari Viswanathan, research director of supply chain management with Aberdeen Group, offers his view of how "Software as a Service" is shaping up in this area. Still in a state of relative infancy, the technology today offers a number of advantages to software buyers, including lower maintenance cost and easier upgrades. But not every kind of software application is a good candidate for the SaaS model. Viswanathan makes the distinction between those that are suitable and those that aren't. He also discusses how SaaS applications work in companies of various size and complexity. [Run Time (Min): 10:27]