Interaction design

Designing human-computer interaction in a user-friendly way

The design of human-computer or, more generally, human-machine interfaces is called interaction design. This design discipline is primarily concerned with the design of the dialogue between humans and interactive systems, such as smartphones, information terminals, navigation devices or websites.

In many cases, interaction design also includes interface design (screen design) and is also frequently associated with usability and user experience design, although these activities are difficult to distinguish from each other. Interface is the English term for user interface, usability stands for usability or user-friendliness and user experience (UX) for user or user experience.

At the iZT, we work in the field of interaction or interface design with the methodology of user-oriented design. The advantages and necessity of this approach to developing successful solutions from the user's point of view is generally recognised today, but it is still regularly neglected in practice for reasons of lack of competence and (not fully thought through) cost considerations.

Test of a prototype of a gesture control for an elevator
Test eines Prototyps einer Gesten-Steuerung für einen Fahrstuhl

User-centred design comprises the sub-steps of analysis of the context of use (users, tasks, equipment, social environment, physical environment), requirements specification, application development and evaluation. As a rule, several such cycles are run through in order to approach the final solution step by step (iteratively). The background to this approach is that experience has shown that no "optimal" result can be achieved with only one run. Instead, the relevant requirements can only be sufficiently fully developed through evaluation with the later users.

In order to proceed in a focused and effective manner in the individual iterations and to avoid unnecessary development efforts, we usually start with simple prototypes that are gradually expanded, technically implemented and refined.

We would be happy to support you in designing your system, your product or your service with regard to the human-computer interaction involved. We look forward to hearing from you.

Research projects

Since almost all research projects at the iZT also involve the design and prototypical implementation of one or more interactive systems, extensive knowledge of interaction design is available.

Corresponding projects from recent years are listed below:

Project titleContentFurther information
ProGesture -
Tool Support for Rapid Prototyping of 3D-Gesture Interaction
Development of a software tool for the rapid prototyping of 3D gesture interaction, for consistent support in gesture development, interaction design and evaluationat the Department of Applied Computer Science

www.progesture.org
inBEF -
Inclusion-promoting, interactive explanatory elements in barrier-free e-forms
Development and testing of barrier-free e-forms (BEF) enriched with interactive explanatory elements to facilitate access for people with cognitive language problemsat the Department of Applied Computer Science
ITP@BEFDevelopment of a software tool for the engineering realisation of barrier-free e-forms using interactive explanatory elementsat the Department of Applied Computer Science
WeBewIn -
Tool-supported design of motion-based human-computer interactions
Development and testing of a prototype for an innovative software tool for rapid prototyping of touchless/3D gesture interaction.at the Department of Applied Computer Science
Design, prototypical implementation and evaluation of an interface for gesture-based control of applications on the open source system platform "universAAL".Development of a universal interface for gesture interaction for the system platform "universAAL - universal open platform and reference specification for Ambient Assist Living"); testing and demonstration by means of an example application.