Orchestrate itself is an ETL TOOL which supports Parallelism techniques.
it is used to execute the jobs in parallel.
IBM Purchased Orchestrate and integrated in the Datastage in order to support parallelism.
Orchestrate generates OSH Code which is Executable.
OSH code is not executable, except in the appropriate virtual machine. It's a similar model to Java or Perl (or even DataStage BASIC) in this respect. Orchestrate shell scripts are not executable as operating system executables.
IBM Software Services Group
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.