ISO 9241-13:1998

Overview

ISO 9241-13:1998 is an international standard from the International Organization for Standardization (ISO) that outlines ergonomic requirements for office work using visual display terminals (VDTs), specifically focusing on user guidance in software user interfaces. The standard provides practical recommendations for how systems can guide users efficiently, ensuring usability and reducing errors, cognitive load, and user frustration for individuals at all experience levels. The guidance outlined is independent of technology or application type, making it suitable for a broad range of software products used in office environments.

Key Topics

ISO 9241-13:1998 addresses several essential aspects of user guidance within human-computer interaction:

• General User Guidance: Ensuring guidance is distinguishable, context-relevant, and supports user control and task continuation.
• Prompts: Recommendations for both generic and specific prompts to direct user input clearly and efficiently.
• Feedback: Providing timely, appropriate, and perceivable system responses to user actions, geared toward users' skill levels and task requirements.
• Status Information: Continuously or automatically presenting system or task status relevant to the user's current activity.
• Error Management: Emphasizing error prevention, error correction by the system or user, and the effective presentation of error messages.
• On-line Help: Guidelines for implementing help systems supporting users in navigating, understanding, and effectively using the software.

The standard includes definitions relevant to user guidance (such as feedback, prompts, error management, and context-sensitive help), and discusses when and how each type should be implemented or provided.

Applications

ISO 9241-13:1998 is used by several key groups in the software development and procurement process:

• User Interface Designers: To ensure ergonomic, effective, and user-friendly guidance systems are implemented within applications.
• Tool Developers: For those creating user guidance components or dialogue systems, ensuring features align with international ergonomic standards.
• Procurers and Compliance Teams: As a reference during product acquisition, enabling objective evaluation of a system's user guidance capabilities.
• Quality and Usability Assessors: For benchmarking products against internationally recognized recommendations, improving the user experience and productivity.

Expected benefits of applying ISO 9241-13:1998 include:

• Enhanced user satisfaction and productivity by reducing unnecessary cognitive load.
• Reduced frequency and severity of user errors.
• Higher consistency and clarity in on-screen messaging, prompts, feedback, and help.
• Support for a wider range of user abilities and experience levels.

Related Standards

ISO 9241-13:1998 belongs to a broader family of standards dealing with ergonomic requirements for VDT-based office work. Other relevant standards include:

• ISO 9241-12: Presentation of information
• ISO 9241-14: Menu dialogues
• ISO 9241-15: Command dialogues
• ISO 9241-16: Direct manipulation dialogues
• ISO 9241-17: Form filling dialogues

Together, these standards provide comprehensive guidance for designing ergonomic, user-friendly, and accessible computer workstations and interfaces in office environments.

Keywords: ISO 9241-13:1998, ergonomic requirements, office work, visual display terminals, VDT, user guidance, software usability, user interface design, error management, on-line help, system feedback, status information, ISO standards, human-computer interaction, user prompts, compliance.