For the past few years the great debate is whether Software as a Service is less expensive to implement and maintain than on premises applications. My colleague, Fran Karamouzis, and I have created a total cost of ownership model to compare SaaS and on on premises delivery models. Our decision framework allows the user to compare various sourcing options for software and IT services, including newer software as a service solutions. CIOs responsible for the business case and sourcing managers working on sourcing strategies can conduct a multiyear financial analysis.
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