Lawo, MichaelModzelewski, MarkusMarkusModzelewski2020-03-092020-03-092014-02-11https://media.suub.uni-bremen.de/handle/elib/628In recent years more and more sophisticated devices are created including an, in the "worst" case, exponential growth of functionality: In current versions mobile phones are not just telecommunication devices, but also a camera, music player, browser, email interface etc., resulting in new terms like smart phones. A television device can also be used as a browser using a wireless internet connection and washing machines contain more programmable functions than customers will ever need and use. This complexity can most often be reflected as a burden for the users regarding the necessity to learn how to use such a product. Accordingly, one main challenge - and opportunity - of human computer interaction is the involvement of each functionality in a respective and selfdescriptive way to the user. On the other hand, especially due to demographic changes, user requirements must also be considered in the design process. Existing guidelines and standards define approaches and recommendations regarding design issues related to different devices and user impairments, but are not consequently included in product development. Designers have the challenge to respect both topics and create either individual products or products for an as wide spread customer group of people as possible.eninfo:eu-repo/semantics/openAccessInclusive designproduct development processcustomer involvement methodsontology model000Dissertationurn:nbn:de:gbv:46-00103662-13