Development of an instrument measuring user satisfaction of the human-computer interface
CHI '88 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Contextual design: defining customer-centered systems
Contextual design: defining customer-centered systems
The usability engineering lifecycle: a practitioner's handbook for user interface design
The usability engineering lifecycle: a practitioner's handbook for user interface design
Master usability scaling: magnitude estimation and master scaling applied to usability measurement
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Technology as Experience
Cost-Justifying Usability: An Update for the Internet Age
Cost-Justifying Usability: An Update for the Internet Age
A method to standardize usability metrics into a single score
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Grounding experience: relating theory and method to evaluate the user experience of smartphones
EACE '05 Proceedings of the 2005 annual conference on European association of cognitive ergonomics
Meta-analysis of correlations among usability measures
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Evaluating relative contributions of various HCI activities to usability
HCSE'10 Proceedings of the Third international conference on Human-centred software engineering
Do teams achieve usability goals? evaluating goal achievement with usability goals setting tool
INTERACT'11 Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part I
Physicality quantitative evaluation method
Proceedings of the 25th Australian Computer-Human Interaction Conference: Augmentation, Application, Innovation, Collaboration
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Integrating human-computer interaction (HCI) activities in software engineering (SE) processes is an often-expressed desire. Two metrics to demonstrate the impact of integrating HCI activities in SE processes are proposed. Usability Goals Achievement Metric (UGAM) is a product metric that measures the extent to which the design of a product achieves its user-experience goals. Index of Integration (IoI) is a process metric that measures the extent of integration of the HCI activities in the SE process. Both the metrics have an organizational perspective and can be applied to a wide range of products and projects. An attempt has been made to keep the metrics easy to use in the industrial context. While the two metrics were proposed mainly to establish a correlation between the two and thereby demonstrate the effectiveness of integration of HCI in SE processes, several other applications seem likely. The two metrics were evaluated in three independent studies: a classroom-based evaluation with two groups of students, a qualitative feedback from three industry projects, and a quantitative evaluation using 61 industry projects. The metrics were found to be useful, easy to use, and helpful in making the process more systematic. Our studies showed that the two metrics correlate well with each other and that IoI is a good predictor of UGAM. Regression analysis showed that IoI has a somewhat greater effect on UGAM in projects that use the agile process model than the waterfall process and in the projects that are executed as a contracted software development service than in the projects in product companies. UGAM also correlated well with the traditional usability evaluations.