Deploying an application, and the ability to upgrade production applications with minimal affect on the users, is critical to success.  OpenInsight provides

As well as BASIC+ functions, routines, and subroutines such as Define Database and Attach_Table  to allow the programmer to manage application deployment and maintenance in detail.

This chapter discusses additional application maintenance considerations not discussed elsewhere, or lightly discussed elsewhere, to help you understand how to deploy and upgrade applications more efficiently.