PPT Slide

HCI Standards

ISO methods 9241 (ISO 9000 series standards address quality) Ergonomic requirements of VDT - both hardware and software in 17 parts:

Introduction

Guidance on task requirements

Visual Display requirements

keyboard requirements

workstation layout and postural requirements

environmental requirements

display requirements with reflections

requirements for displayed colours

requirements for non-keyboard input devices

Dialogue Principles

Usability Specification

Presentation of Information

User Guidance and Help

Menu Dialogues

Command Dialogues

Direct Manipulation Dialogues

Form-filling Dialogues

Task Design - ISO 9241-2

The application of ergonomic principles ... is essentially the integration of task design with the design of software - where well designed tasks

• provide for the application of an appropriate variety of skills;

• ensure that the task performed are identifiable as whole units of work rather than fragments

• provide sufficient feedback on task performance in terms meaningful to the user

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