Chapter 5 - Task Analysis

Question 1

Task Analysis とは？

Answer 1

• Steps users take when interacting with a system
• Existing system & tasks before design work
• What did old system allow the users to do?
• What requirements are there for the new system?

Question 2

Task Analysis Purpose

Answer 2

• Make designers understand existing systems and people’s existing jobs.
• Help with better understanding of system user requirement
• Evaluate design of existing system, develop design of new system
• Gives insights for how to do task better

Question 3

Approach to Task Analysis (1/2)

Answer 3

• – GENERAL
• Flowchart
• Entity-relationship (ER) analysis
• Knowledge-base (KB) analysis
• Hierarchical Task (HTA) analysis

Question 4

Approach to Task Analysis (2/2)

Answer 4

• – FOCUS
• Goals & actions users carry out
• What users know about tasks & work
• psychological processes
• objects/entities on which users act
• objects relation with attributes

Question 5

Task Analysis Inputs

3

Answer 5

• problem statement
• existing system observations
• analysis of users

Question 6

Task Analysis Outputs

Answer 6

• HTA report
• task analysis based on other structures
• problem statement
• existing system observation
• user population analysis

Question 7

Data Collection

Answer 7

• choice of methods depends on objects, values and ethics.
• methods list:
• – observe users working
• – talk to them informally
• – do task yourself
• – familiarize yourself with existing systems
• – analyze real tasks
• – conduct experiment
• – ethnographic methods, use surveys