Table of Contents - Y.3534 (04/2026) - Cloud computing – Functional requirements of function as a service

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	Overview of function as a service
	6.1	Introduction to function as a service
	6.2	Logical components of function as a service
	6.3	Lifecycle of function in function as a service
7	Functional requirements of function as a service
	7.1	Interactive action support
	7.2	Elastic resource support
	7.3	Operation and maintenance support
	7.4	Measuring and billing support
8	Security considerations
Appendix I – Use cases of function as a service
	I.1	Function as a service use case for scheduled tasks
	I.2	Function as a service use case for bursting scale
	I.3	Function as a service use case for artificial intelligence (AI) reasoning
	I.4	Function as a service use case for edge cloud
	I.5	Function as a service use case for creation
	I.6	Function as a service use case for workflow
	I.7	Function as a service use case for release and update
	I.8	Function as a service use case for exception handling
	I.9	Function as a service use case for measuring and billing
	I.10	Function as a service use case for video processing
Appendix II – Relationship between FaaS and IaaS, PaaS and SaaS
Appendix III – Relationship between FaaS and serverless computing
Bibliography