Creating your own standard of testing model

Integration regression testing is necessary but a very complex process.
And what if we test not just the interaction of systems but check the working capacity of business operations implemented on this interaction?
How to create a transparent and helpful testing model for everyone?

Let's look at the experience of our company and try to answer these questions. 

The talk will focus not only on creating tests but also on creating a structure in the tracking system dictated by all interested teams' needs.