Task Models

Question 1

splitting task into (ordered) subtasks

Answer 1

Task Decomposition

Question 2

what the user knows about the task and how it is organized

Answer 2

Knowledge based techniques

Question 3

relationships between objects, actions and the people who perform them

Answer 3

Entity-relation based analysis

Question 4

collect unstructured lists of words and actions

Answer 4

General Method

Question 5

organize using notation or diagrams

Answer 5

General Method

Question 6

Describe the actions people doStructure them within task subtask hierarchyDescribe order of subtasks

Answer 6

Task Decomposition

Question 7

Most common

Answer 7

Hierarchical Task Analysis (HTA)

Question 8

represent levels of abstraction

Answer 8

Taxonomies

Question 9

used in task

Answer 9

Objects

Question 10

normal taxonomy object in one and only one branch

Answer 10

XOR

Question 11

object must be in both multiple classifications

Answer 11

AND

Question 12

weakest case can be in one, many or none

Answer 12

OR

Question 13

Focus on objects, actions and their relationships

Answer 13

Entity-Relationship Techniques

Question 14

includes non-computer entities and
emphasises domain understanding not implementation

Answer 14

Entity-Relationship Techniques

Question 15

simple things: spade, plough, glasshouse

Answer 15

Concrete objects:

Question 16

To the objects add attributes

Answer 16

Attributes

Question 17

who performs the actions

Answer 17

Agent

Question 18

which is changed by the action

Answer 18

Patient

Question 19

used to perform action

Answer 19

Instrument

Question 20

read behind the words

Answer 20

implicit agents

Question 21

the real agent?

Answer 21

indirect agency

Question 22

a special sort of action

Answer 22

messages

Question 23

an agent acts in several roles

Answer 23

roles