PCQ: Preferred Comfort Questionnaires for product design.

Background: Selecting the most suitable questionnaire(s) in comfort research for product design is always a challenge, even for experienced researchers.

Objective: The objective of this research is to create a list of Preferred Comfort Questionnaires (PCQ) for product design to help researchers in the selection of questionnaires for comfort research.

Methods: Fifteen questionnaires that are often used in comfort research for product design were selected as candidate questionnaires.

Introduction to the special issue on comfort: A review of 26 papers from the International Comfort Congress 2019.

Various aspects related to comfort are described in this special issue. Some papers are focused on the environment, like smell, temperature, light, acoustics, space and some on an artefact touching the human, like the floor angle, the seat, a bed and light. However, in this special issue also topics like modelling and behavior get more attention.

Integrating and applying models of comfort.

This paper gives an overview of the relevance of the comfort concept, its definitions, boundary conditions, and stakeholders. Current comfort theories are presented and reflected on, both in their applicability and testing methodology. Questionnaires commonly used to study comfort and discomfort are also reviewed.