The version 4 of Orchestra is based on the "Process Virtual Machine" conceptual model 
for processes. The Process Virtual Machine defines a generic process engine enabling
support for multiple process languages (such as BPEL, XPDL...).
On top of that, it leads to a pluggable and embeddable design of process engines
that gives modeling freedom to the business analyst. Additionally, it enables the
developer to leverage process technology embedded in a Java application.

For more information about the installation and the use of Orchestra check
the documentation under the doc directory.
