Using Stage File for service call in OIC

Summary

Using Stage File for service call in OIC

Content

Hi All, 

I have query related to using stage file for using inter process communication in OIC. 
For e.g if Service A calling Service B can we pass the file reference of stage file from Service A to Service B and process the file in Service B. 
Want to understand if 
-There is any scope for purging the stage file after Service A called Service B with the file reference and file got purged before Service B used it. 
-How much reliable to use this approach 
-Is this approach can be used without any other checkpoint.