usability, design, interaction design, information, web usability, user interface design, usability engineering,user testing, usability inspection, heuristic evaluation, webdesign, UI, GUI, HCI, user-centered design,human-computer interaction, mensch computer interaktion,universität konstanz, usability test, benutzerfreundlichkeit, mensch-maschine-interaktion, mensch-computer-interaktion, human-computer-interaction, usable, website usability, ergonomie, ergonomisch, psychologie, gestalt principles, scenario, information visualization,informationsvisualisierung, User Interface Evaluation, Usability testing, Human Factors, Erogonomic, Ergonomics, User Interfaces, User Interface, Interfaces, informations visualisierung, visual information seeking system, visual search interface, Mensch & Computer 2012Harald Reiterer


Usability Engineering: Evaluation


Harald Reiterer


Ulrike Pfeil; Jens Mueller; Johannes Zagermann







Di / Tu 10:00 - 11:30 (V); 11:45 - 13:15 (Ü)


Learning Content
Evaluation is an integral part of Usability Engineering. It serves the purpose to recognize usability problems early in the development phase of interactive products and develop ideas for improvement. There is a broad spectrum of techniques and methods available (e.g. observation, usability tests, surveys, etc.), which differ in many terms, such as when to apply during the development process or whether to include end-users or experts and thereby provide results for different purposes.

During the theoretical part of the lecture, students will learn about the different methods and techniques. This includes the design and conduction of surveys, interviews, focus groups, usability tests, eye-tracking, diary method, observation, etc. During the course, students will also learn the basic principles of controlled experiments, such as the formulation of hypotheses, dependent and independent variables, within- or between-subjects designs, statistical analysis of data, etc.

During the practical part of the lecture, students will work on a small project in groups. They will have to conduct a study and apply the learned methods to evaluate an interactive product. This allows them to gain first hands-on experiences and also use our usability lab.

Students should be familiar with the contents of the course "Interactive Systems".

Learning Objectives
The learning objectives of the lecture is to provide the knowledge in terms of the use of methods and techniques for the following activities:

  • Evaluation of interactive products with regards to usability and user experience
  • Deduction of change requirements and re-design recommendations

A total of 180 hours
  • 56 hours compulsory attendance
  • 124 hours home work






The proof of academic achievement consists of the following parts:

  • written exam about the theoretical part of the lecture (1 hour)
  • the participation in practical project and a rating of project milestones by the lecturer
  • presentation of practical project
  • term-paper in extended format of the presentation (e.g. Powerpoint)


Main Textbooks:

  • Lazar, Jonathan; Feng, Jinjuan Heidi; Hochheiser, Harry (2010): Research Methods in Human-Computer Interaction. Chichester, UK: John Wiley & Sons Ltd.
  • Hartson, Rex; Pyla, Pardha S. (2012): The UX Book: Process and Guidelines for Ensuring a Quality User Experience. Waltham, US: Morgan Kaufmann. Chapters 12-18.
  • Rogers, Yvonne; Sharp, Helen; Preece, Jenny (2012): Interaction Design: Beyond Human-Computer Interaction. Chichester, UK: John Wiley & Sons Ltd. Chapters 12-15.