VisualAge Generator to Enterprise Generation Language Migration Guide
To achieve the objectives listed, the VisualAge Generator to EGL migration
tool is actually a series of tools that are organized into three stages as
shown in the following figure.

-
The tool for Stage 1 runs in the VAGen environment. The Stage 1 tool
extracts information about the organization of your source code and the source
code itself from your Java repository or Smalltalk library.
The Stage 1 tool loads this information into a migration database. The
VAGen source code is stored in External Source Format.
-
The tool for Stage 2 runs in the WebSphere Studio environment. The
Stage 2 tool uses the information that is stored in the migration database to
create EGL syntax for the VAGen parts that were stored in the migration
database during Stage 1. The Stage 2 tool stores the resulting EGL
source code in the migration database.
-
The tool for Stage 3 also runs in the WebSphere Studio environment. For
each EGL project you want to create, the Stage 3 tool extracts the EGL source
for the parts that belong to that project and creates an EGL project in the
file system for you. Optionally, if you are only working with one
version of a set of projects, the Stage 3 tool can import the projects into
your WebSphere Studio workspace.
After you have the projects in your workspace, you can then version the
projects with whatever source code repository you have decided to use.
You use the tools provided by the source code repository to manage your source
code.
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