How to have a rule fire for a specific application like Order Management

Summary:

How to have a rule fire for a specific application like Order Management or a custom application

Content (required):

We want to have a rule which will fire only if invoked from Order Management compared to another rule which will fire only for a custom application

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):