A Grey Theory Based Approach to Big Data Risk Management Using FMEA

Table 4

Detection rating scale.

Rating	Description	Definition
10	No chance of detection	There is no known mechanism for detecting the failure.
9	Very remote/unreliable	The failure can be detected only with thorough inspection and this is not feasible or cannot be readily done.
8
7	Remote	The error can be detected with manual inspection but no process is in place, so detection is left to chance.
6
5	Moderate chance of detection	There is a process for double checks or inspection but it is not automated and/or is applied only to a sample and/or relies on vigilance.
4	High	There is 100% inspection or review of the process but it is not automated.
3
2	Very high	There is 100% inspection of the process and it is automated.
1	Almost certain	There are automatic “shut-offs” or constraints that prevent failure.