Software Automated Data and Data Model Upgrade System

A computer system for upgrading a software data model and data, comprising:

• a software data model repository which stores a plurality of software data models;
• a software data model comparator which compares:
• a first software data model;
• a second software data model, said second data model comprising an upgrade delta applied to said first data model;
• a third software data model, said third software data model comprising a customization delta applied to said first software data model, said second software data model applied to said third software data model upon installation results in loss of said customization delta;
• a delta module which returns:
• upgrade deltas based on comparison of said second software data model to said first software data model;
• customization deltas based on comparison of said third software data model to said first software data model;
• and
• a command generator which generates upgrade commands applied to said first software data model to produce a target data model which includes said upgrade deltas and said customization deltas.