The document discusses SaaS (software as a service) as both a risk and opportunity for software vendors. It describes Uniserv GmbH, a company that provides data quality solutions. Uniserv has offered an SaaS solution since 2001 which has seen consistent growth. The document argues that the opportunities of SaaS, like accessing new customer segments, outweigh the risks of cannibalizing on-premise software. It also discusses challenges in product design, user support, interfaces and releases when providing both on-premise and SaaS options.