It’s well known that a workflow requires an error control for a robust process design. The next diagram shows an overview of the proposed error control.

I have seen developers discussing different ways to integrate third party applications with Siebel. Hope this nicely elaborated article will help you understanding this better.
I have asked industry experts to share their ideas on to this and now publishing responses with you. More ideas are open. Lets discuss this and provide your expert suggestion in comment section.
Responses of industry expert:
Read what Joan Martí Peraire says about intgrating siebel with third party appication.
In order to integrate Siebel with external application, what I can share, from my own experience, is that there are two options that …