HCI Design Rules

Question 1

Achieving goals within constraints

Answer 1

Design

Question 2

The purpose of the design we are intending to produce

Answer 2

Goals

Question 3

The limitations on the design process by external factors

Answer 3

Constrain

Question 4

Choosing which goals or constraints can be relaxed so that others can be met

Answer 4

Trade off

Question 5

What are the 15 rules to design a perfect dashboard?

Answer 5

Design for a target
Keep everything at a glance
Keep it simple
Align elements
Be consistent
Highlight the most relevant information
Be clear
Start from zero
Shorten the numbers
Show the context
Choose the right colors
Design dashboards not reports
Show variations
Leave the noise off
Pick the right charts

Question 6

This provides designers with a series of tools and techniques for understanding social settings and organizing their observations to derive models for design.

Answer 6

Contextual inquiry

Question 7

This principle revolves around the features of an interactive system that allow novice users to understand how to use it at first and then how to attain a maximal level of performance.

Answer 7

Learnability

Question 8

This design principle makes use of the user past knowledge of interacting with a similar system to ease the new system interaction. (Windows 7 to 10)

Answer 8

Predictability

Question 9

This design principle is the ability of the user to assess the effect of past operations on the current state. It provides an observable account of occurring change.

Answer 9

Synthesizability

Question 10

This design principle make use of the new users past experience with other applications. This experience can come from real life situation. (i.e., Red means danger)

Answer 10

Familiarity

Question 11

This design principle can be seen as a form of consistency. (i.e., Word to Excel)

Answer 11

Generalization

Question 12

This design principle relates to the similarities in behavior arising from alike situations or alike task objectives. (i.e., radio button allows to select only one option)

Answer 12

Consistency

Question 13

This design principle refers to the diversity of ways in which the user and the system exchange information

Answer 13

Flexibility

Question 14

One of the ways to achieve this is user pre-emptive, where a user initiates an action on the system.

Answer 14

Dialog initiative

Question 15

Refers to the ability to support more than one task at a time, but stipulates that at any given instant the communication is restricted to a single task

Answer 15

Multithreading

Question 16

Refers to the ability to transfer the control for task execution between system and user. (i.e., in case of emergency in a plane, the pilot can control the direction manually)

Answer 16

Task migratability

Question 17

It requires that equivalent values can be substituted for each other (i.e., double click or click and press enter an app)

Answer 17

Substitutivity

Question 18

It refers to the modifiability of the user interface by the user.

Answer 18

Customizability

Question 19

When is the term adaptability and adaptivity used when customizing a system

Answer 19

Adaptability = user modifies system
Adaptivity = system changes itself

Question 20

It concerns itself with supporting the user in successfully accomplishing an action with the system and assessment of the action

Answer 20

Robustness

Question 21

This allows the user to evaluate the internal state of the system by means of its perceivable representation at the interface

Answer 21

Observability

Question 22

It is the ability of a system to recover in case of an error

Answer 22

Recoverability

Question 23

Describe the difference between forward error recovery and backward error recovery

Answer 23

Forward: negotiation from a state towards another desired state
Backward: attempting to undo the effects of previous interaction

Question 24

It deals with the time needed for the system to communicate with the user. Variations in ___ time will impede anticipation of the user.

Answer 24

Responsiveness

Question 25

This ensures that the system can perform all tasks of interest

Answer 25

Task conformance

Question 26

Give an example of a poor design that led into severe fatalities

Answer 26

Boeing 737 in 1989 that crashed in England