Användbarhetsutvärdering av en grafiskt visualiserad patientjournal
First-year students at Linköping University have developed a prototype that graphically visualizes a medical record in a new way. The customer of that project was the Department of Biomedical Engineering at Linköping University. They now want a usability evaluation to be performed of the prototype. The prototype is to be used by employees in the public health care and is supposed to be used on a small portable unit with a multi-touch interface. For this reason the prototype will be used as a complement to existing systems when the users work near the patients. Since the prototype is still in the design phase it is important that the continuing development is carried out in close collaboration with the users.The purpose of this thesis was to point out which usability problems the prototype violates and which needs it must satisfy. The purpose was also to examine how the users interact with an iPod touch and what they consider of using an iPod touch. Usability is created when human interacts with a product to achieve specified goals, where the product is easy to learn, effective to use, easy to remember, has few errors and is satisfactory to use. By early and continuously involving the users in its development a product is able to reach a high level of usability. In this thesis a number of well known usability methods were used, e.g. interviews, heuristic evaluation and thinking aloud protocol. All these methods are described thoroughly in this report among with a review of how they were implemented. Finally, these methods are being discussed together with the obtained results.During the interviews with the users a number of usability problems in the prototype were discovered together with the users? needs which it must satisfy. It was also discovered that most of the users thought positive of working with an iPod touch. In the continuing development of the prototype these usability problems should be fixed in order to satisfy the users? needs.