Which of the listed requirements would be classified as a recoverability non-functional requirement?
Which of the listed requirements would be classified as a recoverability non-functional requirement?
The platform must be able to support a maximum tolerable downtime (MTD) of 30 minutes. Recoverability non-functional requirements specify how quickly and effectively a system can be restored after a disruption. Maximum tolerable downtime (MTD) is a metric used to measure the maximum acceptable length of time that a system can be unavailable after a failure before causing significant harm. Therefore, the requirement related to supporting an MTD of 30 minutes directly aligns with the concept of recoverability.
B. The platform must be able to support a maximum tolerable downtime (MTD) of 30 minutes.
Why B? Backup platform always must be available for recovery operations - it's D: "The platform must be available 24 hours a day, 7 days a week with the exception of scheduled downtime".
I think D is FR, business rule.
Agree with B
B - recoverability (NFR)
A and C are non-functional, while B and D are functional. Recoverability is the point: Using change control policies betters the ability to recover in case of failure/defect. So it's A.
Page 31 of the Design Book : Recoverability - Easy to restore after an outage Mesurements : MTD, RPO, RTO
MTD = Recoverability. More info : https://tandem.app/blog/what-is-the-difference-between-rpo-rto-mtd
B is correct! MTD, RPO and RTO. NFR: Recoverability
C, as b isn’t non functional but rather functional
Correct answer will be B
B would be functional, not non-functional