For the purpose of the International Standard IEC 80000-14 and this database, the following terms and definitions apply. If you wish to post an alternative definition, please offer it under Alternative Definitions for review by this wiki as well as the members of IEC TC 25/WG 5. Numbered definitions are taken from 80000-14 and are preserved for consistency.

 

3.1 General Concepts

3.1.1

base modality

one of the classifications of the interaction of a human body with its environment based on the physical nature of the

interaction or on the human sensory system that it affects (see 3.4.1 to 3.4.10)

 

NOTE If the interaction is from the environment to the human body it is described as an in-modality. If it is from the human

body to the environment is described as an out-modality

 

3.1.2

derived modality

one of the classifications of the interaction of a human body with its environment based on a property of the human

body that is determined or changed using one or more of the base modalities (see 3.4.11 to 3.4.12)

 

NOTE The temperature of the human body or parts of the human body can be detected (CALOR-OUT) by an infrared detector

or by conduction to a thermometer and can be changed by convection, conduction, or various forms of radiation (CALOR-IN).

 

3.1.3

in-modality

modality of interactions from the environment to the human body

 

3.1.4

out-modality

modality of interactions from the human body to the environment

 

3.1.5

wetware

that physical aspect of a human being that is affected by or affects telebiometric devices

 

NOTE This term is not used in the normative text, but it is extensively used in Annex D and the definition is provided here for

completeness.

 

3.1.6

biometrics

automated recognition of individuals based on their behavioural and biological characteristics

 

NOTE In some other disciplines the meaning of biometrics encompasses counting, measuring and statistical analysis of any

kind of data in the biological sciences including the relevant medical sciences.

 

3.1.7

telebiometrics

application of biometrics to telecommunications and of telecommunications to remote biometric sensing

 

3.1.8

telebiometric device

sensor or actuator interacting remotely with a human being, using telecommunications

 

3.1.9

telebiometric multimodal model

model of the interactions of a human being with its environment using modalities based on the human

senses.

 

3.1.10

TMM metric layer

layer in the TMM taxonomy that identifies the SI units used to describe an IN or OUT interaction.

 

3.1.11

TMM scientific layer

layer in the TMM taxonomy that identifies the scientific discipline that investigates the properties and

thresholds of an IN or OUT interaction.

 

3.1.12

TMM sensory layer

layer in the TMM taxonomy that identifies the human senses involved in producing or detecting an IN or

OUT interaction.

 

3.2 Thresholds

3.2.1

threshold

boundary between two identifiable regions of the stimulus to response curve for human sensors

 

3.2.2

detection threshold

level at which a stimulus applied to a conscious human subject just produces a response

 

3.2.3

suprathreshold stimulus

stimulus greater than the detection threshold

 

3.2.4

comfort threshold

level (above or below) which a stimulus is known to cause discomfort for most human beings

 

3.2.5

safety threshold

level at which a stimulus changes from being safe to not being safe.

 

NOTE In many cases a stimulus is safe below a safety threshold (a maximum safe level) and unsafe above (for example a hot

object), but there are cases where the stimulus is safe above a safety threshold (a minimum safe level) and unsafe below (for

example a cold object).

 

3.2.6

pain threshold

level above which a stimulus is known to cause the sensation of pain

 

3.2.7

damage threshold

level above which a stimulus may cause temporary or permanent damage

 

NOTE Damage thresholds often depend on the duration of the exposure to a stimulus as well as the level of that stimulus.

 

3.3 Safety and Security

3.3.1

safety

property of a physical device or procedure that determines (and limits through mechanisms, procedures,

regulations and permitted operating thresholds) the extent of the damage that the device can cause to

one or more human beings.

 

NOTE Examples of mechanisms, procedures, regulations, and permitted operating thresholds are permitted electronic emissions

from devices, the temperature of surfaces on operating devices, the volume of sounds in public entertainment, and mechanisms

to ensure the shut-down of nuclear power plants in the event of some failure. In many cases the operation of a device within

these limits can be both sensed and controlled by telecommunications.

 

3.3.2

security

protection of a human being's activities (particularly those involving privileges and financial activities)

from attack by other human or computer activities, usually achieved by the use of mechanical or

electronic devices or mechanisms associated with the protected human being.

 

NOTE Examples of security devices and mechanisms are physical door-locks, the use of PINs or biometrics to protect credit

cards or passports, and the use of biometrics for access control. In many cases these devices and mechanisms use

telecommunications as an essential part of their operation.

 

3.3.3

safe telebiometric device

telebiometric device that is harmless to human physiology, culture, psychology, and meets public

information rights requirements and privacy requirements

 

NOTE 1 The Telebiometric Multimodal Model (see ITU-T Rec. X.1081) provides a framework for the identification of safety

aspects of biometric devices, and for the specification of limits (safety thresholds) by analysing and categorising the interactions

between a human body and its environment.

 

NOTE 2 Safe telebiometric devices meet a specified set of conditions derived from identified safety thresholds.

 

3.3.4

telebiometric security

security obtained through the use of telebiometric devices for authentication of a human being, using one

or more of the modalities of interaction between a human body and its environment, meeting public

information rights requirements and privacy requirements

 

NOTE The "out" modalities specified in the Telebiometric Multimodal Model (see ITU-T Rec. X.1081) provide a framework for

the identification of devices that can provide telebiometric acquisition and processing.

 

3.3.5

telebiometric identification

telebiometric system function that performs a one-to-many search to obtain a candidate list using

telecommunications to access one or more biometric systems.

 

3.3.6

telebiometric verification

telebiometric system function that performs a one-to-one comparison to show true or false, using

telecommunications to access one or more biometric systems.

 

3.4 Modalities

3.4.1

TANGO-IN

characterization of any stimulus that can be detected by nerve endings in the human body, other than by

the specialised nerves active in seeing, hearing, tasting and smelling, or that affects or damages human

cells

 

NOTE 1 The term TANGO-IN is used both as an adjective applied to a stimulus, but more commonly as a noun referring to a

TANGO-IN stimulus.

 

NOTE 2 The human body is sensitive to the impact of objects or to irritation by (for example) nano-particles or abrasion or

chemical substances related to the use of telebiometric devices, and this forms part of the safety levels associated with

TANGO-IN.

 

NOTE 3 Safety levels for TANGO-IN also include the pain caused by pressure to activate a telebiometric device (or other

mechanical effects of a device on the body) or by chemical substances.

 

3.4.2

TANGO-OUT

characterization of any force or other non-sound effect produced by a part of the human body, including

but not limited to blows with or without an associated instrument or tool, that can be detected by a sensor

or another human being

 

NOTE 1 The term TANGO-OUT is used both as an adjective applied to a specific output, but more commonly as a noun

referring to a TANGO-OUT specific output.

 

NOTE 2 TANGO-OUT includes quantities and units related to the ability of the human body to produce a force or physical effect,

including measurements of both muscular and lung capability. This also includes quantities and units used in measurements of

obesity and of general fitness.

 

3.4.3

VIDEO-IN

characterization of any stimulus that can be detected by, affects or is likely to affect or damage, the

human eye

 

NOTE 1 The term VIDEO-IN is used both as an adjective applied to a stimulus, but more commonly as a noun referring to a

VIDEO-IN stimulus.

 

NOTE 2 VIDEO-IN includes quantities and units related to the sensing by the eye of (non-ionizing) electromagnetic radiation at

various wavelengths and at various intensities.

 

3.4.4

VIDEO-OUT

characterization of any output from a human being that can be detected by the human eye or an image

sensor, including but not limited to behaviour or signs produced by a human being that can be observed

by another human being or a sensor

 

NOTE The term VIDEO-OUT is used both as an adjective applied to a specific output, but more commonly as a noun referring

to a VIDEO-OUT specific output.

 

3.4.5

AUDIO-IN

characterization of any sound stimulus that can be detected by, affects or is likely to affect or damage,

the human ear or otherwise impair hearing

 

NOTE 1 The term AUDIO-IN is used both as an adjective applied to a stimulus, but more commonly as a noun referring to a

AUDIO-IN stimulus.

 

NOTE 2 AUDIO-IN includes quantities and units related to both the effect of loud sounds on the ear, and the frequency range

and possible impairment of human hearing.

 

3.4.6

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