Dictionary · ISO/IEC TS 5723:2022(en) Trustworthiness — Vocabulary

system that includes a combination of technical and human or natural elements

set of systems and system elements that interact to provide a unique capability that none of the constituent systems can accomplish on its own (note: can be necessary to facilitate interaction of the constituent systems in the system of systems)

extent to which a system product or service can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use (note 1: The “specified” users, goals and context of use refer to the particular combination of users, goals and context of use for which usability is being considered; note 2: used as a qualifier to refer to the design knowledge, competencies, activities and design attributes that contribute to usability, such as usability expertise, usability professional, usability engineering, usability method, usability evaluation, usability heuristic). [See also: ISO/IEC 9241-11 Ergonomic of Human-System Interaction — Part 11: Usability: Definitions and Concepts. ISO, Geneva, Switzerland, 2018, https://www.iso.org/standard/63500.html.]

combination of interacting elements organized to achieve one or more stated purposes

can be checked for correctness by a person or tool

open, comprehensive, accessible, clear and understandable presentation of information; property of a system or process to imply openness and accountability

ability to meet stakeholders' expectations in a verifiable way; an attribute that can be applied to services, products, technology, data and information as well as to organizations.

1) relates to an allocated responsibility. The responsibility can be based on regulation or agreement or through assignment as part of delegation; 2) For systems, a property that ensures that actions of an entity can be traced uniquely to the entity; 3) In a governance context, the obligation of an individual or organization to account for its activities, for completion of a deliverable or task, accept the responsibility for those activities, deliverables or tasks, and to disclose the results in a transparent manner.

any individual, group, or organization that can affect, be affected by, or perceive itself to be affected by a decision or activity

measure of closeness of results of observations, computations, or estimates to the true values or the values accepted as being true

property that an entity is what it claims to be

independent system that forms part of a system of systems (SoS) (note: Constituent systems can be part of one or more SoS. Each constituent system is a useful system by itself, having its own development, management, utilization, goals, and resources, but interacts within the SoS to provide the unique capability of the SoS).

property of being accessible and usable on demand by an authorized entity

measure of capacity and the ability of an entity, person or organization to achieve its objectives

ability to perform as and when required (note 1: includes availability, reliability, recoverability, maintainability, and maintenance support performance, and, in some cases, other characteristics such as durability, safety and security. Note 2: used as a collective term for the time-related quality characteristics of an item).

property of a system that allows a human or another external agent to intervene in the system’s functioning; such a system is heteronomous.

defined measurement method and measurement scale

preservation of confidentiality, integrity and availability of information; in addition, other properties, such as authenticity, accountability, non-repudiation, and reliability can also be involved.

property whereby data have not been altered in an unauthorized manner since they were created, transmitted, or stored; property of accuracy and completeness

degree to which the characteristics of data satisfy stated and implied needs when used under specified conditions; degree to which a set of inherent characteristics of an object fulfils requirements (an object can be a product, process or service)

ability to assess an attribute of an entity against a metric (note 1: "measurable" is the adjective form of "measurability")

data supporting the existence or verity of something (note: can be obtained through observation, measurement, test, or other means).

property of a system such that it does not, under defined conditions, lead to a state in which human life, health, property, or the environment is endangered; [safety involves reducing both the probability of expected harms and the possibility of unexpected harms].

freedom from intrusion into the private life or affairs of an individual

ability of an item to perform as required, without failure, for a given time interval, under given conditions. Note 1 to definition: The time interval duration can be expressed in units appropriate to the item concerned (e.g. calendar time, operating cycles, distance run, etc.) and the units should always be clearly stated. Note 2 to definition: Given conditions include aspects that affect reliability, such as: mode of operation, stress levels, environmental conditions, and maintenance.

resistance to intentional, unauthorized act(s) designed to cause harm or damage to a system

ability to anticipate and adapt to, resist, or quickly recover from a potentially disruptive event, whether natural or man-made; capability of a system to maintain its functions and structure in the face of internal and external change, and to degrade gracefully when this is necessary

ability of a system to maintain its level of performance under a variety of circumstances

"accountable" (adjective vs. noun): answerable for actions, decisions, and performance