Chapter 4. Understanding the Validation API
The Validation API was new in Visio 2010 Premium edition but is now part of Visio 2013 Professional; it provides the opportunity for creating diagramming rules. These rules can help eliminate common errors and enables companies to enforce diagramming standards. A well-structured drawing could then be used to export the encapsulated data and drawn relationships between elements to some external application, if desired.
In the first chapter, we had an overview of the user interface of the Diagram Validation group on the PROCESS tab, and a quick look at the elements in the XML format. In this chapter we will explore the objects, collections, and methods in the Validation API.