1. Data Models: IDEF1X Advantages: Core available from the MIP.
ERwin Data Modeling tool
Persistence
Low-level business rules (primary, unique,
and foreign keys and check constraints).
Does not include XML tags.
Disadvantages:
Must translate to XML for SOA.

2. Data Models: UML Advantages: Higher level business rules than IDEF1X.
Does not include XML tags.
Disadvantages:
Core not available from the MIP.
Must translate to XML for SOA.
No persistence.

3. Data Models: XML Advantages: Core XSD available from the MIP.
Can be derived, as MIP does, from IDEF1X.
Disadvantages:
Not a “Data Model”.
Specifies few business rules, e.g. not foreign
keys.
Includes XML tags.
No persistence.

4. Data Models: General Proposal:
Extend the MIPs JC3IEDM IDEF1X data model
using the ERwin Data Modeling tool
Generate PDFs for users without ERwin
Derive the XML schema from the result, as
the MIP does