Testing Flashcards
Jakob’s Law
Users spend most of their time on other sites, and they prefer your site to work the same way as all the other sites they already know.
Mental Model
What we think we know about a system, especially about how it works. We form a model of how a system works, and then we apply that model to new situations where the system is similar. In other words, we use the knowledge we already have from past experiences when interacting with something new.
Fitt’s Law
The time to acquire a target is a function of the distance to and size of the target.
Hick’s Law
The time it takes to make a decision increases with the number and complexity of choices available.
Cognitive Load
The amount of mental resources needed to understand and interact with an interface
Miller’s Law
The average person can keep only 7 (+2/-2) items in their working memory.
Postel’s Law
Be conservative in what you do, be liberal in what you accept from others.
Peak-End Rule
People judge an experience largely based on how they felt at its peak and at its end, rather than on the total sum or average of every moment of the experience.
Cognitive Bias
Systematic errors of thinking or rationality in judgement that influence our perception of the world and our decision making ability.
Confirmation Bias
A bias of belief in which people tend to seek out, interpret, and recall information in a way that confirms their preconceived notions and ideas.
Memory Bias
We remember intensely emotional events more than less emotional events, and this has an effect on how we perceive an experience: we recall not the sum of how we felt throughout the experience but the average of how we felt during its peak emotional moments and at its end.
Recency Effect
Items near the end of a sequence are the easiest to recall.
Aesthetic-Usability Effect
Users often perceive aesthetically pleasing design as design that’s more usable. Aesthetically pleasing design can influence usability by creating positive emotional response, which in turn enhances people’s cognitive abilities.
von Restorff Effect
When multiple similar objects are present, the one that differs from the rest is most likely to be remembered.
Tesler’s Law
Also known as the law of conservation of complexity, states that for any system there is a certain amount of complexity that cannot be reduced.
