Week 6 / Fifth Lecture: User Centred Design [Amirali]

What is UCD?

ucd is user centred design is a user interface design process that focuses on usability goals, user characteristics, environment, tasks, and workflow in the design of an interface. Designers need to analyze and foresee how users are likely to use a product and test the validity of their assumptions with regards to user behaviour in real world tests with actual users. Such testing is necessary as it is often very difficult for the designers of a product to understand intuitively what a first-time user of their design experiences, and what each user's learning curve may look like.

- Chunking

Chunking is the elements of perception plus memory. That mean is a part of memorizing. Presentation of information is simplified by dividing up. However, the bite size is for easy to storage. Forming chunks in working memory depends on how information is presented. For example, categorized them in a shape and group to memorise.

Visual variables are used for communication by encoding data and drawing distinctions between visual elements. There are 2 ways of visual variables which are selectivity & associativity. Most variables are selective but shape is not selective in general because it is hard to pick out triangles a midst a sea of rectangle. Associativity is the opposite of selectivity. t is easy to ignore the variable and let it all blend in to one another.