Validation and ranking of user requirement related building performance attributes and sub attributes for government residential buildings
Authors: S. Gopikrishnan , Paul Virendra Kumar 
Published: November 2018

Purpose
The purpose of this paper is to identify and validate user requirement related building performance attributes and sub attributes for performance evaluation of government residential buildings.

Design/methodology/approach
User requirements in a building were listed from ISO 6241-1984 (E). Seven building performance attributes were identified through literature review and linked with the user requirements. Three more attributes not directly related to building performance but that could influence user satisfaction were also identified. The attributes were grouped into physical, environmental and external factors to suit the intervention strategies proposed to be implemented by maintenance agencies to enhance user satisfaction. The need for amplifying the attributes for better comprehension by occupants was felt; hence, characteristics of each of these attributes were listed based on literature survey and review. In total, 42 such sub attributes were identified to amplify ten attributes. To validate the adequacy of these attributes, an online survey was launched to garner feedback on first adequacy of the attributes and secondly to confirm whether there is a necessity for amplification of attributes for better comprehension by occupants. In total, 200 responses were received through the online survey, and the data received were categorized as per gender, location, sector, profession and finally civilian/military.

Findings
The outcome of the survey revealed that 84% of the participants felt that the attributes were adequate enough to assess building performance and 75% of them agreed that amplification of attributes through sub attributes as essential for better comprehension and to avoid ambiguity in response. Also the seven identified attributes were ranked from 1 to 7 with 1 being the most important. Weights of each attribute in the scale of 1 were also arrived at based on the responses. Similar exercise was carried out for all sub attributes.

Research limitations/implications
Present research is confined to government residential buildings that are constructed and maintained through public funds and hence individual occupants are not constrained by economics. Other type of building infrastructure used for training, sports, storage, medical, etc., will have certain more specific performance parameters in addition to the ones identified in this paper for residential buildings. Economics also become a factor from users' perspective in case of private residential buildings which does not form part of the scope of this paper. However, as a future scope, the number of attributes can be escalated depending upon the type of building being surveyed, keeping the identified attributes as core attributes.

Practical implications
This paper links the end user satisfaction with building performance and the outcome of surveys will provide useful insights to the behaviour of buildings as well the efficiency and effectiveness of the existing maintenance management systems. Survey based on these attributes and sub attributes will enable the facility managers to ascertain the satisfaction level of occupants with respect to building performance, satisfaction with respect to external factors such as accessibility, amenities and societal issues other than building performance. It will enable the facility managers and decision makers to prioritize their maintenance according to importance, availability of funds, etc. It will also provide a data bank over the years that can indicate the changing aspirations of occupants of government residential buildings. This will enable policymakers to review specifications, authorizations and scales.

Originality/value
This paper links user requirement with building performance. ISO 6241-1984(E) forms the basis for user requirement. Survey based on these user requirement related building performance attributes shall enable facility managers prioritize their maintenance efforts in management of facilities.