Table of Contents - P.1321 (10/2025) - Interactive test methods for subjective assessment of extended reality communications

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Recommendation
4	Abbreviations and acronyms
5	Conventions
6	How to use this Recommendation
7	Guidance on appropriate test design
	7.1	Consideration of QoE influencing factors in the test
	7.2	Guidance on the selection of tasks
	7.3	Guidance on the selection of test measures
8	Guidance on the consideration of HIFs and CIFs in the test
	8.1	Selection of participants
	8.2	Sensory acuity
	8.3	Control of the internal state and behaviour of individual participants
	8.4	Test environment
9	Test methods and rating scales
	9.1	Task performance
	9.2	Conversation and behaviour analysis
	9.3	Subjective perceptual quality
	9.4	Post-experience questionnaires
	9.5	System performance
10	Data analysis
11	Structure of the test session
12	Information to report on a subjective test
Annex A – Communication task: survival game
	A.1	Task description
	A.2	Task duration
	A.3	Participants
	A.4	Variations
	A.5	Example of instructions to participants
	A.6	Applicable use cases
	A.7	Example of application
Annex B – Communication task: Block building
	B.1	Task description
	B.2	Task duration
	Page
	B.3	Participants
	B.4	Variations
	B.5	Example of instructions to participants
	B.6	Applicable use cases
	B.7	Examples of application
Annex C – Communication task: body communication
	C.1	Task description
	C.2	Task duration
	C.3	Participants
	C.4	Variations
	C.5	Example of instructions to participants
	C.6	Applicable use cases
	C.7	Examples of application
Annex D – Communication task: treasure hunt
	D.1	Task description
	D.2	Task duration
	D.3	Participants
	D.4	Example of instructions to participants
	D.5	Applicable use cases
	D.6	Examples of application
Appendix I – Example test results
Bibliography