Lukasz Dutka
"Automatic Workflow Refinement by AAB in K-WF Grid"

The complexity of grid systems makes them very difficult in
exploitation by non technical staff. To make it simpler the
process of workflow construction and execution is divided in
several phases including constructing abstract workflows and
converting them into real ones. The abstract workflow describe
only what has to be done in order to lead to a specific
solution whereas the real workflow refers which exact instance
of services have to be called in order to produced some results.

One of K-WF Grid tools, called  Automatic Application Builder (AAB),
is designed for automatic conversion of abstract workflows into
the real ones taking into account current context. The process
is called refinement of workflows. In order to make the process
more accurate we decided to exploit semantic techniques for
description of the current system context.