Information Technology (IT) organizations are already aware of important things like usability, focusing on customer needs when building products, making them pleasurable and so on. The age of one-way, take-it-or-leave-it applications has come to an end.
But how we might integrate the mindset and the practice of Interaction Design (IxD) in tech companies, that's something we cannot take for granted. I haven't seen this manual yet -- nor even created it (sorry if you expect to see this).
There is a path we must go through to fully integrate the discipline of design in this context. Design management is here to serve this purpose.
This presentation will give you clues on how people are dealing with it "into the wild". Stories of designers struggling to persuade bosses and workmates. Managers trying to understand the value of design. Developers learning new skills. Quite a journey!