misvCRM ERD

Here is the first cut of the entity relationship diagram of misvCRM (which by the way is the name of the application). It is possibly almost complete but I am sure as time goes on I will discover that there are better ways of designing things. For now, this serves as a primary blueprint.

To draw this diagram I used Visual Paradigm for UML for Community Edition. It is a freeware product that allows you to draw different kinds of diagrams such as UML, requirement diagram, CRC card diagram, flowchart, ORM diagram, etc