The purpose of this activity is to relate positions (OE resources) to functions (FE's), Information Requirements (IR), "objects" (logical files; FD's), and systems.  

OVERVIEW

This activity is similar to Phase 2, Activities D and E. The intent is to show what existing "objects," information requirements and systems are used by the various positions.

As described in Phase 2, an "object" is a data abstraction about a specific fact or event and is represented using the File Description (FD). In Data Base Engineering terminology, these "objects" represent Application Logical Data Base Models (ALDBM). The OE/FD Relationship is used to relate positions to "objects."

Information Requirements (IR's) and systems are also cross-referenced to positions to show how they are affected.

The cross-referencing results in a series of matrices depicting the relationships between:

• Functions (FE) and Positions (OE).
• Positions (OE) and Information Requirements (IR).
• Positions (OE) and Objects (FD).
• Positions (OE) and Systems.

STEPS IN EXECUTION

1. Enterprise Engineering reviews/revises relationships between positions and functions (FE/OE Relationships).

2. Enterprise Engineering establishes a cross-reference between positions and information requirements (OE/IR Relationships).

3. Enterprise Engineering establishes a cross-reference between positions and existing "objects" (OE/FD Relationships).

4. Enterprise Engineering establishes a cross-reference between existing information systems and positions (OE/System Relationships).

5. Enterprise Engineering prepares a set of matrices to show the relationship between:

   • Functions and Positions (FE/OE).
   • Positions and "Objects" (OE/FD)
   • Positions and Information Requirements (OE/IR).
   • Positions and Systems (OE/Systems).