			APT Data Model
			==============


Overview
--------

The class diagrams show the relationships used in the APT Data Model
to allow editing of an HST proposal in particular and any proposal, or
a generic document, in general.  The files included are:

APT-Diagrams      
	Both PS and PDF versions.  This is one file containing many
	diagrams.  However, the order of the diagrams is not the
	correct order for the review.  Instead they should be
	reordered as follows:

	Logical View / Main
	Class Diagram: edu.stsci.tina / Package Overview
	Class Diagram: edu.stsci.tina / Tina Architecture
	Class Diagram: edu.stsci.tina.model / Package Overview
	Class Diagram: edu.stsci.tina.view / Package Overview
	Class Diagram: edu.stsci.tina.controller / Package Overview
	Class Diagram: edu.stsci.apt.model / Package Overview
	Class Diagram: edu.stsci.hst.apt.model / Package Overview
	Class Diagram: Logical View / HST Proposal
	Class Diagram: Logical View / HST Phase 1 Observing
	Class Diagram: Logical View / HST Target Information
	Class Diagram: Logical View / HST Phase 2 Observing
	Class Diagram: Logical View / APT HST ETC

APT-Packages
	This text file describes the philosophy of how the package
	structure for APT is derived, and what packages we are using.

