Table of Contents - Y.4508 (01/2025) - Functional requirements and architecture of blockchain-based activity log management for Internet of things (IoT) data processing and management

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 blockchain-based ALM for IoT DPM
7	Characteristics of blockchain-based ALM for IoT DPM
	7.1	Supporting cross-platform activity log tracing
	7.2	Managing activity logs for IoT DPM across their full lifecycle
	7.3	Providing independent and trustworthy management of activity logs
	7.4	Flexibility of deployment
	7.5	Independent to raw IoT data
8	Functional requirements of blockchain-based ALM for IoT DPM
	8.1	Management of activity logs for IoT DPM
	8.2	Independent trustworthy shared storage of activity logs for IoT DPM
	8.3	Tracing activity logs for IoT DPM across platforms
	8.4	Data security protection
9	Functional architecture of blockchain-based ALM for IoT DPM
	9.1	Functional components of the blockchain-based ALM for IoT DPM
	9.2 	Reference points of the blockchain-based ALM for IoT DPM
	9.3 	External components of blockchain-based ALM for IoT DPM
10	Security considerations
Appendix I – Use cases of blockchain-based ALM for IoT DPM
	I.1 	Use case: Tracing activities for IoT DPM across IoT platforms
Appendix II – Deployment modes of blockchain-based ALM for IoT DPM
	II.1 	Deployment mode: Acting as a standalone service in an IoT platform
	II.2 	Deployment mode: Acting as a standalone service across IoT platforms
	II.3 	Deployment mode: Embedding in IoT service
	II.4 	Deployment mode: Hybrid
	II.5 	Deployment mode: Connecting to multiple trustworthy shared storage
Appendix III – General procedures of blockchain-based ALM for IoT DPM
	III.1 	Collecting, managing and tracing activity logs across IoT platforms
	III.2 	Tracing DPM progresses for IoT data by activity logs across IoT platforms, with multiple shared storage
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