IT-6200 - Introduction to Human Computer Interaction oed answer key

Those who interact directly with a product to achieve a task

Stating something to be true

Validate other models

Is the process of of determining the usability and acceptability of the product or design that is measured in a variety of usability and user experience data

A working piece of software is not always needed Prototyping is still important because it allows users and designers to interact with the products before developing a fully live version