Relative Importance IndexQuestionnaire: Below mentioned is a list of mandatory and preferred attributes of evaluating a new building technology. Rate their importance on a scale of 1 – 10.

Type of Attribute Attribute Rating 1

Rating 2

Rating 3

Mandatory Attribute Strength and Stability Requirements 10 9 10Performance and Code Compliances 9 10 9

Preferential Attribute Functional Requirements 5 4 6Constructability 8 6 5Economic Viability 7 8 6Sustainability 4 5 7Finish Quality 6 7 5

Relative Importance Index (RII) = [(ΣW)/(A*N)]Where, W = weight/rating given to each attribute by the respondent, ranges from 1 to 10

A = Higher response Integer i.e. 10N = Total number of respondents

Suppose we get 3 reponses.

Calculation:RIIs for the listed attributes:Attribute RII/Weight (w)Strength and Stability Requirements 0.97Performance and Code Compliances 0.97Functional Requirements 0.50Constructability 0.64Economic Viability 0.70Sustainability 0.54Finish Quality 0.60