4.3.1 Application Data Services Version Compatibility

This section explains how applications interact with DFCS based on glossary version compatibility. It covers:

• First-time subscription rules
• Upgrade of Application Data Services

1. First-Time Subscription

An application can subscribe to Application Data Services in DFCS only if the glossary version in DFCS is the same or lower than the application version.

Note:

If the DFCS glossary version is higher than the app version, Subscription is NOT allowed.

Example

• DFCS 26D contains Application Data Services for PBSM with glossary version 26B.
  • PBSM versions 26B, 26C, and 26Dcan subscribe to DFCS 26D.
• DFCS 26A contains glossary version 26A for PBSM.
  • PBSM 26A can subscribe to DFCS 26A.

2. Upgrade of Application Data Services

If the App version is same or higher than the DFCS glossary version, the App can subscribe to the latest Application Connectors.

However, if DFCS is upgraded and its glossary version for the app is higher than the app version, the app will continue using the previously subscribed connector version. In this case, the App cannot access new extensions or overrides until it is upgraded to the latest compatible DFCS glossary version.

Example

• If DFCS upgrades to 26A and includes a PBSM glossary for 25D, and PBSM has not yet upgraded to 26A, PBSM will continue to receive upgrades and overrides, because the glossary version (25D) is not higher than the app version.
• If DFCS upgrades to 26A and includes a PBSM glossary for 26A, and PBSM remains at 25D, PBSM will continue using the 25D Application Data Services it had before the DFCS upgrade. In this case, PBSM will not receive new upgrades or overrides until it upgrades to 26A.