Microsoft is gradually improving the way it allows for Bring Your Own Device (BYOD) and other scenarios in which many employees use Microsoft on multiple devices. We’re getting growing numbers of questions from Forrester clients about this topic, and while Microsoft is making its approach fairer in some areas, it's also making it more complicated. One problem is that different Microsoft product teams continue to invent new ways to handle BYOD that are OK for their product but are inconsistent with how other product teams handle the same situation. Sourcing professionals need to understand all the different rules, so that they can work with IT colleagues to create a BYOD strategy that balances technical requirements and licensing cost, to take advantage of the available flexibility while avoiding the potential pitfalls. For example, Microsoft has announced cheaper, better BYOD support for the Windows client OS, but you might face significant extra costs for Microsoft Office if you enable it for BYOD unless you take care to avoid them.
Of course the fundamental problem is that per-device licensing is an obsolete model, so Microsoft should really enable BYOD by allowing per-user licensing, at least for Enterprise Agreements. However, since that isn’t going to happen anytime soon, sourcing professionals need to be able to navigate the per-device rules. Here’s as simple an overview as I can create: