Master Data

Before you can use the CMT module, you must set up the master data. This involves the definition of a target VRC in the new Infor LN version, which includes the customizations. Customization of Infor LN is performed with package version release customization extensions (VRCs). A package VRC is in fact, a version of Infor LN.

The package VRC tree structure is developed to avoid duplications by creating a parallel working environment. This procedure enables users to work in their own VRCs while developers can continue customizing the applications at the same time. This means that the user can be working in a package VRC that contains the standard software of a package while the developer is working in a package VRC that contains the customizations for that package.

A new package VRC is derived from a previous VRC and it only contains the software components that have changed compared to the previous VRCs. This is done to avoid duplication.

This figure shows how the package VRC is derived from a previous package VRC.

When a new release of Infor LN is introduced, you must copy the existing customizations, such as menus, forms, sessions, domains, and scripts to the new release. The CMT module is developed to simplify this process of merging customer-specific customizations with a new Infor LN release while preserving the customizations of the old release.

There is a distinction between regular updates and updates with a derived-from structure. The CMT module does not play any part in the regular update process. The CMT module is specifically developed for updates with a derived-from structure. For these updates, a merge takes place between the customized software components of the previous package VRCs and the new Infor LN release.

Once the merge process is completed, the new version and the original version share the same derived-from structure. This enables you to use the customizations in the new Infor LN release.

To ensure a successful merge of customizations, these conditions must be met:

• The standard Infor LN release must already be updated to the new standard release.
• The derived-from structure for the target VRC must exist in the new Infor LN release.