http://dl.gi.de/handle/20.500.12116/6117 2026-07-22T22:11:09Z 2026-07-22T22:11:09Z Benz, Roman Brucks, Martin Sengpiel, Michael http://dl.gi.de/handle/20.500.12116/6228 2018-03-20T10:59:45Z 2016-01-01T00:00:00Z

Development and Evaluation of Video Instructions for a Cross-generational AAL Tablet Application Benz, Roman; Brucks, Martin; Sengpiel, Michael Ziegler, Jürgen It is challenging to design a sufficiently complex user interface that is universally usable. Striking differences between younger and older users, based on age and cohort effects, demand suitable design compromises with an effective combination of user interface and instructional design. This paper describes such a design compromise with a focus on video instruction for an AAL application designed to maintain and expand cross-generational social support networks. To estimate its effectiveness, 30 younger (M = 26 years) and 31 older (M = 68 years) participants were split in two groups: Both solved the same 16 tasks with the same AAL application, yet the experimental group received a short video instruction before the tasks and the control group did not. Results show that both age groups rated the video instruction as useful and did benefit from it – older users’ effectiveness improved even to the level of younger users. It can be concluded that the effective combination of user interface and instructional design played a central role towards universal usability and that early integration of instructional design into the human centered design process improved its efficiency.

2016-01-01T00:00:00Z Endter, Cordula http://dl.gi.de/handle/20.500.12116/6227 2018-03-20T10:59:45Z 2016-01-01T00:00:00Z

Design for Elderly – A Meeting Point for Ethnography and Usability Endter, Cordula Ziegler, Jürgen Ethnographic research methods are getting more and more popular in disciplines that have mainly been dominated by quantitative or experimental methodological approaches. Especially in technology-driven research, ethnography seems to enrich common approaches by investigating the use of technology in the everyday life of prospective users. By participating in and observing the users and their mundane activities, routines and rituals ethnography provides insights that can be integrated in the design process to improve the usability of the artifact. This article discusses the intersection of ethnography and usability by introducing ethnographic methods, discussing their application in the context of design for elderly and presenting results of an ethnographic case study in the field of Ambient Assisted Living (AAL).

2016-01-01T00:00:00Z Winter, Dominique http://dl.gi.de/handle/20.500.12116/6229 2018-03-20T10:59:46Z 2016-01-01T00:00:00Z

Role-play Exercises in User Experience-driven Product Development Winter, Dominique Ziegler, Jürgen Where ideas exist for products or features, User Experience (UX)-related aspects are usually not given enough consideration. Role-play exercises enable the implicit knowledge of experts which then can be used to identify and refine UX-related factors in product ideas. From early childhood, people use role-play to try out roles and get to know them. Their experience provides them with a more in-depth understanding for the roles and also teaches them how to interact with each other. This original learning method can therefore be applied by most people without a great deal of preparation. Personas (i. e. prototypical user) are ultimately a form of role description and are used as a launching point from which to place ourselves in the position of a user. Scenarios offer contextual information and provide a scope for the role-play exercise to move on.

2016-01-01T00:00:00Z Fischer, Holger Kauer-Franz, Michaela Winter, Dominique Latt, Stefan http://dl.gi.de/handle/20.500.12116/6230 2018-03-20T10:59:46Z 2016-01-01T00:00:00Z

UUX Method Selection Fischer, Holger; Kauer-Franz, Michaela; Winter, Dominique; Latt, Stefan Ziegler, Jürgen The establishment of human-centered design within software development processes is still a challenge. Numerous methods exist that aim to increase the usability and user experience of an interactive system. Nevertheless, the selection of appropriate methods remains to be challenging, as there are multiple different factors that have a significant impact on the appropriateness of the methods in their context of use. The present article investigates current strategies of method selection based on a conference workshop with practitioners. The results show that usability and user experience professionals concentrate on five to seven well-known methods and will need more support to select and use further ones.

2016-01-01T00:00:00Z