ISO/TR 9241-100:2010 人間とシステムの相互作用の人間工学—パート100：ソフトウェアの人間工学に関連する標準の概要 | ページ 5

2.1

ergonomics

study of human factors

scientific discipline concerned with the understanding of interactions among human and other elements of a system, and the profession that applies theory, principles, data and methods to design in order to optimize human well-being and overall system performance

[SOURCE: ISO 6385:2004, definition 2.3]

2.2

usability

extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use

[SOURCE: ISO 9241-11:1998, definition 3.1]

2.3

context of use

users, tasks, equipment (hardware, software and materials), and the physical and social environments in which a product is used

[SOURCE: ISO 9241-11:1998, definition 3.5]

2.4

effectiveness

accuracy and completeness with which users achieve specified goals

[SOURCE: ISO 9241-11:1998, definition 3.2]

2.5

efficiency

resources expended in relation to the accuracy and completeness with which users achieve goals

[SOURCE: ISO 9241-11:1998, definition 3.3]

2.6

satisfaction

freedom from discomfort, and positive attitudes to the use of the product

[SOURCE: ISO 9241-11:1998, definition 3.4]

2.7

accessibility

extent to which products, systems, services, environments or facilities can be used by people from a population with the widest range of capabilities to achieve specified goals in a specified context of use

Note 1 to entry: Context of use includes direct use or use supported by assistive technology.

[SOURCE: ISO/TR 22411:2008, definition 3.6]

2.8

accessibility

usability of a product, service, environment or facility by people with the widest range of capabilities

Note 1 to entry: The concept of accessibility addresses the full range of user capabilities and is not limited to users who are formally recognized as having a disability.

Note 2 to entry: The usability-orientated concept of accessibility aims to achieve levels of effectiveness, efficiency and satisfaction that are as high as possible considering the specified context of use, while paying particular attention to the full range of capabilities within the user population.

[SOURCE: ISO 9241-20:2008, definition 3.1]

2.9

interactive system

combination of hardware and software components that receive input from, and communicate output to, a human user in order to support his or her performance of a task

Note 1 to entry: The term “system” is often used rather than “interactive system”.

[SOURCE: ISO 13407:1999, definition 2.1]

2.10

user interface

all components of an interactive system (software or hardware) that provide information and controls for the user to accomplish specific tasks with the interactive system

[SOURCE: ISO 9241-110:2006, definition 3.9]

2.11

dialogue

interaction between a user and an interactive system as a sequence of user actions (inputs) and system responses (outputs) in order to achieve a goal

Note 1 to entry: User actions include not only entry of data but also navigational actions of the user.

Note 2 to entry: Dialogue refers to both the form (syntax) and the meaning (semantics) of interaction.

[SOURCE: ISO 9241-110:2006, definition 3.2]