Infrastructure Requirements for Equator Record and Replay

Introduction Developing a flexible and generic record and reuse mechanism for mixed reality experiences is a complex and challenging task. In this position paper we break the problem down into a number of sub-problems, expressed as requirements and associated technical approaches and challenges. In particular, we: • Identify requirements for a generic record and replay facility within the Equator infrastructure. These are ordered in terms of increasing sophistication both with regard to how flexibly recorded material can subsequently be reused as well as increasing difficulty of realisation. • Identify the kinds of tools that we might wish to provide to users so that they can make use of this facility • Identify some of the underlying technical challenges to be addressed in developing the facility and associated tools.