Introducing FBPML Workflow Engine 

                       Jessica Chen-Burger 
                             Sep 2002

The FBPML Workflow Engine contains the below files:

1. Top.pl: this is the top level meta-interpreter that interpretes and 
   executes processes/workflows. 

2. Exe.pl: this is the part of the program that interpretes and
   carries out the lower level actions described in a process.

3. Cond.pl: this program handles conditional statements, such as
   preconditions, postconditions and conditional actions.

4. Comm.pl: this program provides a communication interface with 
   external system/agents.

5. Library.pl: commonly used predicates are described here. 

A few directories are used and useful for understanding the engine:

1. data: this directory stores all of the *.db data that will be used
   as a part of the operation for workflow engine. Among them,
   process.db defines the process model. 

2. domain: this directory stores domain specific data for the PC
   configuration domain. To understand more about this application
   domain, additional relevant documentation is available. 

3. doc: this directory stores other relevant documents. 

4. other-pl: this directory stores no-core workflow engine but data
   needed to run the entire AKT system, including external broker and
   IX system.