In the past, Smia has only provided a manual for power users, which is related to building a model. Since Smia 1.2 you will also find a user's guide for analysis mode. The manual describes basics of navigating through Smia models, working with charts and tables, and managing and documenting scenarios.
The user's guide can be found in the menu bar under Help | Contents and can either be viewed directly in Smia or printed as a pdf document. Dynaplan is continually working on the development of the manual and will update the document with each release. The manual is in English as well as in German available.