Module 2

Question 1

Design of NLS (oNline System)

Answer 1

Mouse (1968)

Question 2

Developed smalltalk at Xerox PARC

Answer 2

Dynabook (1970s)

Question 3

The first graphical browser (Mosaic) came in 1993

Answer 3

WWW (1989)

Question 4

Currently the most active research area in HCI. Sensor based/context aware computing also known as persuasive computing

Answer 4

Ubiquitous Computing

Question 5

beneficial for normal designers and interface designers

Answer 5

Shneiderman’s 8 Golden Rules

Question 6

Standardizing the way information is conveyed ensures users are able to apply knowledge from one click to another; without the need to learn new representations for the same actions

Answer 6

Strive for Consistency

Question 7

Increased use comes the demand for quicker methods of completing tasks

Answer 7

Enable Frequent Users to Use Shortcuts

Question 8

The user should know where they are at and what is going on at all times

Answer 8

Offer Informative Feedback

Question 9

Don’t keep the users guessing

Answer 9

Design Dialog to Yield Closure

Question 10

Systems should be designed to be as fool-proof as possible, but when unavoidable error occurs, ensure users are provided with, intuitive step-by-step instructions to solve the problem as quickly and painlessly as possible

Answer 10

Offer Simple Error Handling

Question 11

Designers should aim to offer users obvious ways to reverse their actions

Answer 11

Permit Easy Removal of Actions

Question 12

Allow your users to be the initiators of actions

Answer 12

Support Internal Locus of Control

Question 13

Interfaces should be as simple as possible with proper info hierarchy and choosing recognition rather than recall

Answer 13

Reduce Short-Term Memory Load

Question 14

asses the interaction between human and computers and used to transform difficult tasks

Answer 14

Don Norman’s 7 Principles

Question 15

possible to determine what actions are possible and the current state of the device (clear focal points, visual hierarchy, obvious navigation systems)

Answer 15

Discoverability

Question 16

Some way of letting the user know that the system is working on the request. Must he immediate, informative, planned, unobtrusive and prioritized

Answer 16

Feedback

Question 17

simple and useful explanation of how something works

Answer 17

Conceptual Model

Question 18

perceived action and actual properties of an object that help us determine its operation (door handle shaped like what it controls)

Answer 18

Affordance

Question 19

Communicates to use where the actions should take place

Answer 19

Signifiers

Question 20

Perceivable indicator that communicates appropriate action

Answer 20

Signifiers

Question 21

Relationship between controls and the effect they have on the design/world

Answer 21

Mapping

Question 22

Users spatial correspondence between the layout of the controls and the devices being controlled to determine how to use them (arrow buttons on a claw machine)

Answer 22

Mapping

Question 23

Restrict the kind of interactions that can take place and help reduce the amount of info process

Answer 23

Constraints

Question 24

methodical procedure to check user interface for usability problems

Answer 24

Heuristic Evaluation

Question 25

Serves as a checklist in evaluating and explaining problems for the heuristic evaluator while auditing an interface or product

Answer 25

Nielsen’s 10 Heuristic Principles

Question 26

System should always keep users informed about what is going on, through appropriate feedback within reasonable time

Answer 26

Visibility of System Status

Question 27

Follows real-world conventions, making info appear in a natural and logical manner

Answer 27

Match Between Systems and the Real World

Question 28

Users often choose system functions by mistake and will need a clearly marked “emergency exit” to leave the unwanted state without having to go through an extended dialogue

Answer 28

User Control and Freedom

Question 29

Support undo and redo

Answer 29

User Control and Freedom

Question 30

Users should not have to wonder whether different words, situations or actions mean the same thing

Answer 30

Consistency and Standards

Question 31

Follow platform conventions

Answer 31

Consistency and Standards

Question 32

Minimize the user’s memory load by making objects, actions and options visible

Answer 32

Recognition Rather than Recall

Question 33

Accelerators (unseen by the novice user) may often speed up the interaction for the expert user such that the system can cater to both type of users

Answer 33

Flexibility and Efficiency of Use

Question 34

Allow users to tailor frequent actions

Answer 34

Flexibility and Efficiency of Use

Question 35

Dialog shouldn’t contain info that’s irrelevant or rarely needed

Answer 35

Aesthetic Minimalist Design

Question 36

Error messages should be expressed in plain language (no codes)

Answer 36

Help Users Recognize, Diagnose, and Recover from Errors

Question 37

Any info should be easy to search, focused on the user’s task, list concrete steps to be carried out, and not be too large (file size)

Answer 37

Help and Documentation