Table 2 Research gaps in the existing notions.

From: Prioritizing disability support systems by using Tamir’s complex fuzzy Dombi aggregation operators

Existing ideas

Discuss the fuzzy information

Discuss the extra fuzzy information in the form of Tmair’s CFS

FS7

Yes

No

Ramot et al.19 approach

Yes

No

Ma et al.23 approach

Yes

No

Ma et al.24

Yes

No

Hu et al.25

Yes

No