User Interface Design and Evaluation

1
User Interface Design and Evaluation

• Chapter 7
• Case study on requirements Tokairo, part 1

2
The System

• UI for a kiosk and worksheet for oil tanker
  drivers
• Original system- Paper worksheet
• New system- Kiosk Worksheet

3
Background info

• Companies involved
• Tokairo
• Tankfreight
• Shell

4
User requirements gathering

• Domain
• Logistics in oil industry
• Drivers
• Nonacademic
• Motivated
• Unions

5
User requirements gathering

• Tasks
• Safety checks
• Load tanker
• Drive tanker
• Make deliveries
• Make record of deliveries

6
User requirements gathering

• Environment
• Noise
• Dirt
• Poor writing instruments

7
How Tokairo gathered user requirements

• Tokairo had prior knowledge about users
• Looked for pockets a.k.a. groups
• Identify common characteristics
• Conducted Site and System Audit
• Analyze function and link to documents involved

8
Communicating user requirements

• Spec passed to programmer
• Tokairo did not write down the user requirements

9
Benefits of conscientious requirement gathering

• Saves
• Time
• Money

10
Questions or Comments?