XML Sapiens is aimed to help at cutting down time expenses in a web-project development thus lowering project’s cost and to minimize laborious system programming in web-site development. It is achieved by providing tools for user interface form logics management. By user interface forms here we mean fragments of a document able to change its state depending on user’s actions.

SAPI is an XML-based language allowing authors to manage web site objects and their interaction; and to separate data from presentation and functionality (see Model of a Managed Site).

SAPI unifies descriptions of CMS user interfaces and enables developers to share their solutions in SAPI Works Gallery.