Usability measurement and metrics: A consolidated model. - Ahmed Seffah; Mohammad Donyaee; Rex Bryan Kline; Harkirat Kaur Padda (Softw. Qual. J., 2006)

Towards a Metrics-Based Framework for Assessing Comprehension of Software Visualization Systems. - Harkirat Kaur Padda; Ahmed Seffah; Sudhir P. Mudur (HCI (8), 2007)

Visualization Patterns: A Context-Sensitive Tool to Evaluate Visualization Techniques. - Harkirat Kaur Padda; Ahmed Seffah; Sudhir P. Mudur (VISSOFT, 2007)

Comprehension of Visualization Systems - Towards Quantitative Assessment. - Harkirat Kaur Padda; Sudhir P. Mudur; Ahmed Seffah; Yojana Joshi (ACHI, 2008)

Investigating the Comprehension Support for Effective Visualization Tools - A Case Study. - Harkirat Kaur Padda; Ahmed Seffah; Sudhir P. Mudur (ACHI, 2009)