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

Table 2

Severity rating scale.

Rating	Effect	Severity of effect
10	Hazardous without warning	Failure is hazardous and occurs without warning; it suspends operation of the system and/or involves noncompliance with government regulations.
9	Serious	Failure involves hazardous outcomes and/or noncompliance with government regulations or standards.
8	Extreme	Big data is inoperable with loss of primary function; the system is inoperable.
7	High	The big data has severely affected performance but functions; the system may not operate.
6	Significant	The performance of big data is degraded; comfort or convenience functions may not operate.
5	Moderate	A moderate effect on the performance of big data; the product requires repair.
4	Very low	A small effect on the performance of big data; the product does not require repair.
3	Minor	A minor effect on the performance of the big data or system.
2	Very minor	A very minor effect on the performance of the big data or system.
1	None	No effect.