SPI success factors within product usability evaluation

J Winter, K Rönkkö - Journal of Systems and Software, 2010 - Elsevier
This article presents an experience report where we compare 8 years of experience of
product related usability testing and evaluation with principles for software process …

Examining correlations in usability data to effectivize usability testing

J Winter, M Hinley - e-Informatica Software Engineering Journal, 2011 - e-informatyka.pl
Based on a case study performed in industry, this work deals with a statistical analysis of
data collected during usability testing. The data is from tests performed by usability testers …