QAD 2017 Enterprise Edition > Installation-Conversion > Conversion Guide > Upgrading QAD Enterprise Edition into a New Environment > Overview
  
Overview
This section provides detailed instructions on how to migrate and upgrade an existing QAD Enterprise Edition environment into a new 2017 QAD Enterprise Edition environment. See on here for instructions on upgrading an existing QAD Enterprise Edition environment to 2017 QAD Enterprise Edition.
At a high level, the process required involves:
Creating a new YAB-installed EE environment
Restoring the previous EE release databases (mfg, admin, help) from the existing environment into the newly installed EE environment
Executing the EE upgrade process
The EE upgrade process in YAB uses the existing conversion routines from previous EE releases, and follows a similar sequence of steps. At a high level these steps are:
Determining the source database version
Determining the appropriate:
Schema files to load
List of conversion routines to be executed
Deleting system data records from both the qaddb and qadadm databases
Upgrading the database schema and structure appropriately for qaddb, qadadm and qadhlp
Executing the conversion routines for the qaddb and qadadm databases
Important: Only use the following upgrade instructions to upgrade an existing Enterprise Edition installation to the latest release. Do not use this option if your current environment is not Enterprise Edition.