Table 4.

Cloud service case.

Indicators	Reference information
Service Agreement termination clauses and exemption clauses.	The service provider has listed clear compensation clauses, service termination clauses and exemption clauses.
User constraints	More user scenarios are restricted, and user permissions are low.
Persistence of data storage	Data storage persistence is up to 99.99%, and data will not be lost.
Data portability	Data portability depends on the user’s own application and cannot be completely migrated.
Data privacy	The service provider does not provide data encryption support, and the data is encrypted by the user himself
Right to know data	The user is not clear about the location and use of data storage.
Data auditability	When it is necessary to review, users can obtain comprehensive operation logs and operation records.
Data destructibility	Server data can be destroyed, but user data cannot be completely destroyed.
Network access performance	The service provider platform only provides basic network defense strategies for the server, and does not provide special DDOS and CC defense support.
Fault recovery capability	If a failure occurs, the service cannot be recovered immediately, and it will take several hours to recover.
Business function	Service providers can provide a large number of services and meet most of users’ business needs.
Business availability	The server can operate normally for a long time, with occasional service failure.
Resource allocation capability	Users can quickly expand or reduce computing resources as required.
Measurement accuracy	The measurement of this service is accurate and almost error free.