<Li> The application vendor does not have to expend resources updating and maintaining backdated versions of the software, because there is only a single version . </Li> <Li> The application vendor has access to all customer data, expediting design and regression testing . </Li> <Li> The solution provider has access to user behavior within the application (usually via web analytics), making it easier to identify areas worthy of improvement . </Li> <P> Accelerated feature delivery is further enabled by agile software development methodologies . Such methodologies, which have evolved in the mid-1990s, provide a set of software development tools and practices to support frequent software releases . </P>

What is your understanding of the saas subscription model