Title: Can a metric judge usability of software? A psychometric walkthrough

Authors: Pooja Jha; K. Sridhar Patnaik

Addresses: Department of Computer Science and Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India ' Department of Computer Science and Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India

Abstract: The software usability is considered as pooled form of understandability, learnability, operability and attractiveness about software. Usability is gradually more accepted as a significant quality issue for interactive software. This research is based on a case study of an educational industry that takes certain aspects that may be affecting the usability of software. The paper explores a SUMI questionnaire for stressing the importance and role of these factors. Also, a metric known as Cronbach's alpha is used to judge the consistency of software within use of the user. Finally, a regression-based model known as perceived software usability is proposed for enhancing the usability of software based on considered factors.

Keywords: SUMI; Cronbach's alpha; multiple regression analysis; usability metric; usability aspects; perceived software usability; PSU.

DOI: 10.1504/IJCAT.2018.094073

International Journal of Computer Applications in Technology, 2018 Vol.58 No.1, pp.80 - 88

Received: 02 Sep 2016
Accepted: 30 Dec 2017
Published online: 14 Aug 2018 *

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