Iteratively modifying and refining a prototype can become a very time-consuming task. Enhancing A ntetype prototypes with transitions and animations guide users in understanding the consequences of their actions without requiring designers to switch to another tool. Complementing the layout engine, elaborated visual design functionality enables designers to work with A ntetype from early conceptual wireframes to comprehensive high-fidelity prototypes. Requirements for designing interactive prototypes have become increasingly complex: A ntetype’s layout engine supports the creation of responsive designs that fluidly adapt to different screen dimensions and provide helpful layout declarations for development. Its layout engine, advanced features for visual design and elaborated functionality for defining interactions, transitions and animations make A ntetype a highly flexible and powerful tool for developing sophisticated interactive prototypes. A ntetype was designed to support a seamless transition from early wireframes defining the layout of an interface, over the creation of visual design alternatives to the creation of complex interactive prototypes. 1.1 User Interface Prototyping with A ntetypeĪ ntetype is a sophisticated design tool to create interactive prototypes for desktop, mobile and web-based applications. Finally, we illustrate the use of our integrated tool, A ntetype-P m, and present an example for its application in a real-world task. Given that our approach is based on the cognitive architecture A ct-R, we provide a brief overview of this framework and compare related models to model-based evaluation. After first introducing the prototyping tool A ntetype, we discuss some limitations of empirical usability testing to motivate the use of model-based evaluation. In this paper we report our progress on an integrated approach to model-based evaluation combining an advanced prototyping tool with a state-of-the-art cognitive architecture to derive quantitative performance predictions for interactive tasks.
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