IEC TR 63283-1:2022

Industrial-process measurement, control and automation - Smart manufacturing - Part 1: Terms and definitions

IEC TR 63283-1:2022(E) is to compile a comprehensive collection of base terminology with compatible terms that can become relevant within the scope of Smart Manufacturing. Most of these terms refer to existing definitions in the domain of industrial-process measurement, control and automation and its various subdomains. When multiple similar definitions exist for the exact same term in different standards, this document contains only the preferred definition in the context of Smart Manufacturing. Whenever the existing definitions are not compatible with other terms in this document or when the definition does not fit into the broader scope of Smart Manufacturing, new or modified definitions are given.

General Information

• Status: Published
• Publication Date: 08-Mar-2022
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: TC 65 - Industrial-process measurement, control and automation
• Drafting Committee: WG 23 - TC 65/WG 23
• Current Stage: PPUB - Publication issued
• Start Date: 09-Mar-2022
• Completion Date: 08-Apr-2022

Overview

IEC TR 63283-1:2022 is a Technical Report from the IEC that compiles a comprehensive vocabulary of terms and definitions relevant to Smart Manufacturing within the domain of industrial-process measurement, control and automation. As Part 1 of the IEC 63283 series, this document harmonizes base terminology across subdomains, selects preferred definitions where multiple standards conflict, and provides new or modified definitions when existing ones do not fit the broader Smart Manufacturing context.

Key Topics

• Scope and purpose: establishes a consistent set of base terms to support Smart Manufacturing work across industry, standards development and research.
• Terms and definitions: authoritative entries (examples in the TR include “access”, “access control”, “actuator”, “algorithm”, “administration shell”, “Asset Administration Shell (AAS)”, and “artificial intelligence (AI)”) that reference or adapt existing IEC/ISO definitions.
• Abbreviations: standardized short forms to improve clarity in technical documents and system specifications.
• Principles applied:
  • Preference for a single, context-appropriate definition when multiple similar definitions exist.
  • Creation or modification of definitions when incompatibilities arise.
• References and resources: points users to terminology databases such as IEC Electropedia and the ISO Online Browsing Platform for cross-reference.

Applications

IEC TR 63283-1:2022 is practical for anyone working on the design, specification, integration, governance or regulation of Smart Manufacturing systems. Typical uses include:

• Standards writers and technical committees - to ensure consistent terminology across new and revised standards.
• Automation engineers and system integrators - to align documentation, interfaces and requirements (e.g., Asset Administration Shells, APIs, actuator and sensor definitions).
• Cybersecurity and safety professionals - to apply consistent concepts such as access, access control, accountability and assurance.
• Procurement, QA and compliance teams - to write unambiguous contracts, test plans and acceptance criteria.
• Researchers and educators - to adopt common vocabulary for publications and training materials.

Using a harmonized vocabulary improves interoperability, reduces ambiguity in specifications, and accelerates deployment of Smart Manufacturing initiatives.

Related Standards

This TR references or aligns with existing IEC/ISO documents and examples found in the TR include:

• IEC TS 62443 series (cybersecurity concepts)
• IEC 60050 (electrical terminology)
• IEC 62264 (manufacturing operations)
• IEC PAS 63088 (Industrie 4.0 administration shell)
• ISO/IEC documents on AI and terminology
• IEC 63278-1 (Asset Administration Shell)

For definitions and updates, consult IEC Electropedia and the IEC Webstore for the latest edition of IEC TR 63283-1:2022.

Standards Content (Sample)

IEC TR 63283-1 ®
Edition 1.0 2022-03
TECHNICAL
REPORT
Industrial-process measurement, control and automation – Smart
manufacturing –
Part 1: Terms and definitions
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IEC TR 63283-1 ®
Edition 1.0 2022-03
TECHNICAL
REPORT
Industrial-process measurement, control and automation – Smart

manufacturing –
Part 1: Terms and definitions
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40 ISBN 978-2-8322-1086-0

– 2 – IEC TR 63283-1:2022 © IEC 2022
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviations . 76
Bibliography . 78

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT,
CONTROL AND AUTOMATION –
SMART MANUFACTURING –
Part 1: Terms and definitions
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC TR 63283-1 has been prepared by IEC technical committee 65: Industrial-process
measurement, control and automation. It is a Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
65/863/DTR 65/904/RVDTR
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Report is English.

– 4 – IEC TR 63283-1:2022 © IEC 2022
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 63283 series, published under the general title Industrial-process
measurement, control and automation – Smart manufacturing, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
This document presents a vocabulary for terms that can become relevant within the scope of
Smart Manufacturing. It is not intended to be a vocabulary for Smart Manufacturing, but it
includes more than the terms from the other parts of this series.

– 6 – IEC TR 63283-1:2022 © IEC 2022
INDUSTRIAL-PROCESS MEASUREMENT,
CONTROL AND AUTOMATION –
SMART MANUFACTURING –
Part 1: Terms and definitions
1 Scope
The scope of this document is to compile a comprehensive collection of base terminology with
compatible terms that can become relevant within the scope of Smart Manufacturing. Most of
these terms refer to existing definitions in the domain of industrial-process measurement,
control and automation and its various subdomains. When multiple similar definitions exist for
the exact same term in different standards, this document contains only the preferred definition
in the context of Smart Manufacturing. Whenever the existing definitions are not compatible
with other terms in this document or when the definition does not fit into the broader scope of
Smart Manufacturing, new or modified definitions are given.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
template
specification of the common features of a collection of s in sufficient detail that an can
be instantiated using it in its appropriate context
Note 1 to entry: can be anything that has a type.
[SOURCE: ISO 15745-1:2003, 3.33, modified – "in its appropriate context" added to definition]
3.1.2
access
ability and means to communicate with or otherwise interact with a system in order to use
system resources
Note 1 to entry: Access may involve physical access (authorization to be allowed physically in an area, possession
of a physical key lock, PIN code, or access card or biometric attributes that allow access) or logical access
(authorization to log in to a system and application, through a combination of logical and physical means).
[SOURCE: IEC TS 62443-1-1:2009, 3.2.1]

3.1.3
access control
protection of system resources against unauthorized access; a process by which use of system
resources is regulated according to a security policy and is permitted by only authorized entities
(users, programs, processes, or other systems) according to that policy
[SOURCE: IEC TS 62443-1-1:2009, 3.2.2]
3.1.4
accountability
property of a system (including all of its system resources) that ensures the actions of a system
entity may be traced uniquely to that entity, which can be held responsible for its actions
[SOURCE: IEC TS 62443-1-1:2009, 3.2.3]
3.1.5
action
something which happens
Note 1 to entry: Every action of interest for modelling purposes is associated with at least one object (see
ISO/IEC 10746-2).
[SOURCE: ISO 15745-1:2003, 3.1]
3.1.6
activity
group of tasks that are classified as having a common objective
[SOURCE: IEC 62264-1:2013, 3.1.1]
3.1.7
actor
entity that communicates and interacts
Note 1 to entry: These actors can include people, software applications, systems, databases, and even the power
system itself.
[SOURCE: IEC 62559-2:2015, 3.2]
3.1.8
actuating drive
physical unit used for driving mechanically actuated final controlling elements
Note 1 to entry: Examples of actuating drives are electric, hydraulic or pneumatic actuating drives, diaphragm
systems or piston actuators.
Note 2 to entry: No actuating drive is required for a final controlling element if the manipulated variable at the
controller output is capable of directly influencing the mass flow or energy flow, i.e. without any mechanical
intermediate variable quantity.
[SOURCE: IEC 60050-351:2013, 351-56-16]
3.1.9
actuator
functional unit that receives a signal to drive the final controlling element from its output variable
Note 1 to entry: If the final controlling element is mechanically actuated, it is controlled via an actuating drive. The
actuator drives the actuating drive in this case.

– 8 – IEC TR 63283-1:2022 © IEC 2022
[SOURCE: IEC 60050-351:2013, 351-49-07, modified – "generates the manipulated variable"
changed to "receives a signal", "of the controlling element", example and figures removed from
definition]
3.1.10
adaptive design
interoperability with assistive technology
3.1.11
administrator
user role whose responsibilities include controlling access to and implementing security policies
for a system
3.1.12
administration shell
virtual digital and active representation of an Industrie 4.0 component in the Industrie 4.0
system
[SOURCE: IEC PAS 63088:2017, 3.1, modified – "Industrie" added twice, note to entry deleted]
3.1.13
aggregation
special form of association that specifies a whole-part relationship between the
aggregate (whole) and a component part
[SOURCE: ISO 15745-1:2003, 3.3]
3.1.14
alarm
audible and/or visible means of indicating to the operator an equipment malfunction, process
deviation, or abnormal condition requiring a timely response
[SOURCE: IEC 62682:2014, 3.1.7]
3.1.15
algorithm
completely determined finite sequence of instructions by which the values of the output
variables may be calculated from the values of the input variables
Note 1 to entry: The behaviour of a system with discrete-value input and output variables (for example a switching
system) may be described completely by an algorithm. For a system with continuous-value and continuous-time input
and output variables the algorithm is given by or derived from the mathematical relationship between the input and
output variables.
[SOURCE: IEC 60050-351:2013, 351-42-27]
3.1.16
allocation
form of coordination control that assigns a resource to an entity
3.1.17
applicable property
data element for the computer-sensible description of a property, a relation or a class
3.1.18
application
software functional element specific to the solution of a problem in industrial-
process measurement and control

Note 1 to entry: An application may be distributed among resources, and may communicate with other applications.
[SOURCE: IEC TR 62390:2005, 3.1.2]
3.1.19
application
ordered set of processes, performed by a set of resources, coordinated by a set of
interactions intended to accomplish a definite objective
[SOURCE: ISO 18435-1:2009, 3.2]
3.1.20
application programming interface
API
standard set of documented and supported routines that expose operating system programming
interfaces and services to applications
Note 1 to entry: An API is usually a source code interface that an operating system, library, or service provides to
support requests made by computer programs.
[SOURCE: ISO/IEC TR 13066-2:2016, 2.1, modified – Example deleted]
3.1.21
arbitration
coordination control that determines how a resource should be allocated when there are more
requests for the resource than can be accommodated at one time
[SOURCE: IEC 61512-1:1997, 3.2]
3.1.22
architecture
fundamental concepts or properties of a system in its environment embodied in its elements,
relationships, and in the principles of its design and evolution
[SOURCE: IEC PAS 63088:2017, 3.2]
3.1.23
area
physical, geographical or logical grouping of resources determined by the site
EXAMPLE It can contain process cells, production units, production lines, and storage zones.
[SOURCE: IEC 62264-1:2013, 3.1.2]
3.1.24
artificial Intelligence
AI
set of methods or automated entities that together build, optimize and
apply a model so that the system can, for a given set of predefined tasks, compute predictions,
recommendations, or decisions
Note 1 to entry: AI systems are designed to operate with varying levels of automation.
Note 2 to entry: Predictions can refer to various kinds of data analysis or production (including translating text,
creating synthetic images or diagnosing a previous power failure). It does not imply anteriority.
[SOURCE: ISO/IEC 22989:__, 3.1.2]

– 10 – IEC TR 63283-1:2022 © IEC 2022
3.1.25
artificial intelligence
study of theories, mechanisms, developments and applications related to artificial
intelligence (3.1.24)
[SOURCE: ISO/IEC 22989:__, 3.1.3]
3.1.26
asset
entity owned by or under the custodial duties of an organization, which has either a perceived
or actual value to the organization
3.1.27
Asset Administration Shell
AAS
standardized digital representation of an asset
[SOURCE: IEC 63278-1:__, 3.1.2]
3.1.28
association
cooperative relationship between system entities, usually for the purpose of transferring
information between them
[SOURCE: IEC TS 62443-1-1:2009, 3.2.7]
3.1.29
assurance
attribute of a system that provides grounds for having confidence that the system operates in
such a way that the system security policy is enforced
[SOURCE: IEC TS 62443-1-1:2009, 3.2.8]
3.1.30
attack
assault on a system that derives from an intelligent threat – i.e., an intelligent act that is a
deliberate attempt (especially in the sense of a method or technique) to evade security services
and violate the security policy of a system
Note 1 to entry: There are different commonly recognized classes of attack:
a) An "active attack" attempts to alter system resources or affect their operation.
b) A "passive attack" attempts to learn or make use of information from the system but does not affect system
resources.
c) An "inside attack" is an attack initiated by an entity inside the security perimeter (an "insider") – i.e., an entity
that is authorized to access system resources but uses them in a way not approved by those who granted the
authorization.
d) An "outside attack" is initiated from outside the perimeter, by an unauthorized or illegitimate user of the system
(including an insider attacking from outside the security perimeter). Potential outside attackers range from
amateur pranksters to organized criminals, international terrorists, and hostile governments.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.9]
3.1.31
attribute
property or characteristic of an entity
[SOURCE: IEC TR 62390:2005, 3.1.3]

3.1.32
audit
independent review and examination of records and activities to assess the adequacy of system
controls, to ensure compliance with established policies and operational procedures, and to
recommend necessary changes in controls, policies, or procedures
Note 1 to entry: There are three forms of audit
a) External audits are conducted by parties who are not employees or contractors of the organization.
b) Internal audit are conducted by a separate organizational unit dedicated to internal auditing.
c) Controls self-assessments are conducted by peer members of the process automation function.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.11]
3.1.33
audit log
traceable record that requires a higher level of integrity protection than provided by typical event
logs
Note 1 to entry: Audit logs are used to protect against claims that repudiate responsibility for an action.
3.1.34
augmented reality
accumulation of information, e.g. pictures, from the real world, with additional digital information
3.1.35
authenticate
verify the identity of a user, user device, or other entity, or the integrity of data stored,
transmitted, or otherwise exposed to unauthorized modification in an information system, or to
establish the validity of a transmission
[SOURCE: IEC TS 62443-1-1:2009, 3.2.12]
3.1.36
authentication
security measure designed to establish the validity of a transmission, message, or originator,
or a means of verifying an individual's authorization to receive specific categories of information
[SOURCE: IEC TS 62443-1-1:2009, 3.2.13]
3.1.37
authorization
right or permission that is granted to a system entity to access a system resource
[SOURCE: IEC TS 62443-1-1:2009, 3.2.14]
3.1.38
automated vehicle
mobile device that includes a control system allowing it to operate either autonomously or under
remote control
[SOURCE: IEC TS 62443-1-1:2009, 3.2.15]
3.1.39
automation
conversion of processes or equipment to automatic operation, or the results of the conversion
[SOURCE: ISO/IEC 2382:2015, 2121284, modified − Note 1 and Note 2 removed]

– 12 – IEC TR 63283-1:2022 © IEC 2022
3.1.40
automation object
physical or logical entity in the automated system
Note 1 to entry: An example of an automation object is an automation component, a valve or a signal.
[SOURCE: IEC 62714-1:2018, 3.1.2]
3.1.41
autonomous
operating without direct human intervention
3.1.42
availability
ability of an item to be in a state to perform a required function under given conditions at a given
instant or over a given time interval, assuming that the required external resources are provided
Note 1 to entry: This ability depends on the combined aspects of the reliability performance, the maintainability
performance and the maintenance support performance.
Note 2 to entry: Required external resources, other than maintenance resources do not affect the availability
performance of the item.
Note 3 to entry: In French the term "disponibilité" is also used in the sense of "instantaneous availability".
[SOURCE: IEC TS 62443-1-1:2009, 3.2.16, modified – "(performance)" removed]
3.1.43
available capacity
portion of the production capacity that can be attained but is not committed to current or future
production
[SOURCE: IEC 62264-1:2013, 3.1.3]
3.1.44
backward compatability
downward compatability
fulfilment by a new component of all the specified requirements of the compatibility profile of its
predecessor
[SOURCE: IEC 62890:2020, 3.1.2]
3.1.45
base specification
reference document containing information that is referenced by a profile
[SOURCE: ISO 15745-1:2003, 3.6]
3.1.46
basic control
control that is dedicated to establishing and maintaining a specific state of equipment or process
condition
Note 1 to entry: Basic control may include regulatory control, interlocking, monitoring, exception handling, and
discrete or sequential control.
[SOURCE: IEC 61512-1:1997, 3.4]

3.1.47
batch
(1) material that is being produced or that has been produced by a single execution of a batch
process
(2) entity that represents the production of a material at any point in the process
Note 1 to entry: Batch means both the material made by and during the process and also an entity that represents
the production of that material. Batch is used as an abstract contraction of the words "the production of a batch."
[SOURCE: IEC 61512-1:1997, 3.5]
3.1.48
batch control
control activities and control functions that provide a means to process finite quantities of input
materials by subjecting them to an ordered set of processing activities over a finite period of
time using one or more pieces of equipment
[SOURCE: IEC 61512-1:1997, 3.6]
3.1.49
batch history
all execution information collected pertaining to the production of a single batch, and may
include common (non-batch specific) information
[SOURCE: IEC 61512-4:2009, 3.1]
3.1.50
batch process
process that leads to the production of finite quantities of material by subjecting quantities of
input materials to an ordered set of processing activities over a finite period of time using one
or more pieces of equipment
[SOURCE: IEC 61512-1:1997, 3.7]
3.1.51
batch production
production process where products or components are produced in batches and where each
separate batch consists of a number of the same products or components
[SOURCE: DIN EN 14943:2006-03]
3.1.52
batch production record
subset of the execution and business information that is retained based upon business
requirements identified by the batch production record specification
Note 1 to entry: This information could include the recipe procedural element execution information, both specific
equipment information, operator comments, batch-related alarms, elements related to the definition of a batch (such
as control recipe, master recipe, site and/or general recipe, batch schedule information), and information important
to the batch (such as training logs, maintenance records, and environmental conditions).
[SOURCE: IEC 61512-4:2009, 3.2]
3.1.53
batch schedule
list of batches to be produced in a specific process cell
Note 1 to entry: The batch schedule typically contains such information as what to produce, how much to produce,
when or in what order the batches are needed, and what equipment to use.

– 14 – IEC TR 63283-1:2022 © IEC 2022
[SOURCE: IEC 61512-1:1997, 3.8]
3.1.54
behaviour
observable activities of a component via its effect on its environment and/or through its
measurable attributes
[SOURCE: ISO 18435-1:2009, 3.3]
3.1.55
big data
data sets that are too large or complex to be dealt with by traditional data-processiong
application software
3.1.56
bill of material
listing of all the subassemblies, parts, and/or materials that are used in the production of a
product including the quantity of each material required to make a product
Note 1 to entry: The term product can refer to a finished product or an intermediate product.
[SOURCE: IEC 62264-1:2013, 3.1.4]
3.1.57
bill of resources
list of resources needed to produce a product
Note 1 to entry: It is also a listing of the key resources required to manufacture a product, organized as segments
of production and is often used to predict the impact of activity changes in the master production schedule on the
supply of resources.
Note 2 to entry: The bill of resources does not normally include the consumables.
[SOURCE: IEC 62264-1:2013, 3.1.5]
3.1.58
border
edge or boundary of a physical or logical security zone
[SOURCE: IEC TS 62443-1-1:2009, 3.2.17]
3.1.59
botnet
collection of software robots, or bots, which run autonomously
Note 1 to entry: A botnet's originator can control the group remotely, possibly for nefarious purposes.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.18]
3.1.60
boundary
software, hardware, or other physical barrier that limits access to a system or part of a system
[SOURCE: IEC TS 62443-1-1:2009, 3.2.19]
3.1.61
building block
recipe entity that exists in a library

[SOURCE: IEC 61512-2:2001, 3.2]
3.1.62
business process segment
identification of personnel, equipment, physical assets, and material resources with specific
capabilities needed for a segment of production, independent of any particular product at the
level of detail required to support business processes that may also be independent of any
particular product
Note 1 to entry: The business process segment synonym is included to reflect the business process oriented
aspects of the process segment.
[SOURCE: IEC 62264-1:2013, 3.1.26]
3.1.63
capability
ability to perform actions
[SOURCE: IEC 62264-1:2013, 3.1.6]
3.1.64
capability assessment
evaluation of the ability or capacity of a manufacturing asset to provide a resource to the system
[SOURCE: ISO 18435-1:2009, 3.4]
3.1.65
capacity
measure of the ability to take action as an aspect of a capability
EXAMPLE Measures of the production rates, flow rates, mass or volume.
[SOURCE: IEC 62264-1:2013, 3.1.7]
3.1.66
cardinality
pattern defining the number of times a concept reoccurs within a description
[SOURCE: IEC 61360-1:2017, 3.1.3]
3.1.67
cells
lower-level elements that perform manufacturing, field device control, or vehicle functions
Note 1 to entry: Entities at this level may be connected together by an area control network and may contain
information systems related to the operations performed in that entity.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.68]
3.1.68
channel
specific communication link established within a communication conduit
[SOURCE: IEC TS 62443-1-1:2009, 3.2.20]
3.1.69
characteristic
distinguishing feature
– 16 – IEC TR 63283-1:2022 © IEC 2022
Note 1 to entry: A characteristic can be inherent or assigned.
Note 2 to entry: A characteristic can be qualitative or quantitative.
[SOURCE: IEC 61360-1:2017, 3.1.4]
3.1.70
choreography between services
(self-organizing) interaction between service users in the context of higher-level specifications
[SOURCE: VDI-Statusreport – Industrie 4.0 Begriff / Terms 2019]
3.1.71
ciphertext
data that has been transformed by encryption so that its semantic information content (i.e., its
meaning) is no longer intelligible or directly available
[SOURCE: IEC TS 62443-1-1:2009, 3.2.21]
3.1.72
class
abstraction of a set of similar products
Note 1 to entry: A product that complies with the abstraction defined by a class is called a class member.
Note 2 to entry: A class is an intentional concept that can take different extensional meanings in different contexts.
EXAMPLE The set of products used by a particular enterprise and the set of all ISO-standardized products are two
examples of contexts. In these two contexts (the particular enterprise and ISO), the set of products that are
considered as members of the single ball bearing class can be different, in particular because employees of each
enterprise ignore a number of existing single ball bearing products.
Note 3 to entry: Classes are structured by class inclusion relationships.
Note 4 to entry: A class of products is a general concept as defined in ISO 1087:2019. Thus, it is advisable that the
rules defined in ISO 704 be used for defining the designation and definition attributes of classes of products.
Note 5 to entry: In the context of the ISO 13584 series, a class is either a characterization class, associated with
properties and usable for characterizing products, or a categorization class, not associated with properties and not
usable for characterizing products.
[SOURCE: IEC 61360-1:2017, 3.1.6, modified – "ISO 1087-1" changed to "ISO 1087:2019"]
3.1.73
class
description of a set of objects that share the same specifications of features, constraints, and
semantics
[SOURCE: ISO/IEC 19505-1: 2012, 11.4.2, modified – "a class describes" changed to
"description of"]
3.1.74
classification
systematic division of a set of items into subsets that share the same specifications of features,
constraints, and semantics
3.1.75
classifier
mechanism that describes behavioural and structural features
Note 1 to entry: Classifiers include interfaces, classes, data types, and components.

[SOURCE: ISO 15745-1:2003, 3.8]
3.1.76
classifying property
property applicable for a particular class, having a value list whose values define the subclasses
of the class
[SOURCE: IEC 61360-1:2017, 3.1.7]
3.1.77
client
device or application receiving or requesting services or information from a server application
[SOURCE: IEC TS 62443-1-1:2009, 3.2.22]
3.1.78
closed-loop control
process whereby one variable (quantity), namely the controlled variable is continuously
measured, compared with another variable (quantity), namely the reference variable, and
influenced in such a manner as to adjust the reference variable
Note 1 to entry: Characteristic for closed-loop control is the closed action in which the controlled variable
continuously influences itself in the action path of the closed loop.
[SOURCE: IEC 6050-351:2013, 351-47-01, modified − Parenthesis around "quantity" deleted
(twice), "or sequentially" deleted from the definition and from the Note to entry]
3.1.79
cloud computing
paradigm for enabling network access to a scalable and elastic pool of shareable physical or
virtual resources with self-service provisioning and administration on-demand
Note 1 to entry: Examples of resources include servers, operating systems, networks, software, applications, and
storage equipment.
[SOURCE: IEC 60050-741:2020, 741-01-07]
3.1.80
cloud service
one or more capabilities offered via cloud computing (3.1.79) invoked using a defined interface.
[SOURCE: ISO/IEC 17788:2014, 3.2.8]
3.1.81
committed capacity
portion of the production capacity that is currently in use or is scheduled for use
[SOURCE: IEC 62264-1:2013, 3.1.8]
3.1.82
common resource
resource that can provide services to more than one requester
Note 1 to entry: Common resources are identified as either exclusive-use resources or shared-use resources.
[SOURCE: IEC 61512-1:1997, 3.9]

– 18 – IEC TR 63283-1:2022 © IEC 2022
3.1.83
communication network profile
representation of the integration aspects of a communication network supported by a networked
device
EXAMPLE Examples of integration aspects are communication object types and the associated operating
relationships (client-server, producer-consumer, etc.), services and attributes for the object types, data types for the
object types and services, and encoding rules used.
[SOURCE: ISO 15745-1:2003, 3.9]
3.1.84
communication path
logical connection between a source and one or more destinations, which could be devices,
physical processes, data items, commands, or programmatic interfaces
Note 1 to entry: The communication path is not limited to wired or wireless networks, but includes other means of
communication such as memory, procedure calls, state of physical plant, portable mediums, and human interactions.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.23]
3.1.85
communication security
measures that implement and assure security services in a communication system, particularly
those that provide data confidentiality and data integrity and that authenticate communicating
entities
Note 1 to entry: This phrase is usually understood to include cryptographic algorithms and key management
methods and processes, devices that implement them, and the life-cycle management of keying material and devices.
However, cryptographic algorithms and key management methods and processes may not be applicable to some
control system applications.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.24, modified − item b) deleted]
3.1.86
communication stack
layered set of software modules between the application and the hardware that provides various
functions to encode, encrypt and format a message for sending, and to decode, decrypt and
unpack a message that was received
[SOURCE: IEC TR 62541-1:2020, 3.1.9]
3.1.87
communication system
arrangement of hardware, software, and propagation media to allow the transfer of messages
from one application to another
[SOURCE: IEC TS 62443-1-1:2009, 3.2.25]
3.1.88
compatibility
ability of a new component to satisfy the requirement profile of an original component
[SOURCE: IEC 62890:2020, 3.1.4, modified – circular definition of "compatibility" revised]
3.1.89
compatibility profile
list of all compatibility requirements of a system, or a component of a system, dependent on
application specifics
[SOURCE: IEC 62890:2020, 3.1.6]
3.1.90
compliance
relation between two specifications, A and B, that holds when specification A makes
requirements which are all fulfilled by specification B (when B complies with A)
[SOURCE: ISO 15745-1:2003, 3.10]
3.1.91
component
entity within a system, which fulfills a defined sub-function
3.1.92
compromise
unauthorized disclosure, modification, substitution, or use of information (including plain text
cryptographic keys and other critical security parameters)
[SOURCE: IEC TS 62443-1-1:2009, 3.2.26]
3.1.93
computer-sensible form
specific representation of information allowing processing of the information content by means
of a computer
[SOURCE: IEC 61360-1:2017, 3.1.10, modified – changed "an electronic computer" into "a
computer"]
3.1.94
concept
unit of knowledge created by a unique combination of characteristics
[SOURCE: IEC 61360-1:2017, 3.1.8]
3.1.95
concept dictionary
collection of entries that allows lookup by concept identifier
Note 1 to entry: There are standardized dictionaries (e.g. IEC CDD), consortium dictionaries (e.g. eOTD® and
ECLASS® ), supplier dictionaries and DF dictionaries.
[SOURCE: IEC 62832-1:2020, 3.1.5, modified – "concept dictionary" deleted in the definition]
3.1.96
concept dictionary entry
definition of a concept containing, at a minimum, an unambiguous concept identifier, a preferred
name, and a description
[SOURCE: IEC 62832-1:2020, 3.1.6]
___________
eOTD® is the registered trademark of a product supplied by ECCMA (Electronic Commerce Code Management
Association). This information is given for the convenience of users of this document and does not constitute an
endorsement by IEC of the product named.
ECLASS® is the registered trademark of a product supplied by the ECLASS e.V. association. This information is
given for the convenience of users of this document and does not constitute an endorsement by IEC of the product
named.
– 20 – IEC TR 63283-1:2022 © IEC 2022
3.1.97
conduit
logical grouping of communication assets that protects the security of the channels it contains
Note 1 to entry: This is analogous to the way that a physical conduit protects cables from physical damage.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.27]
3.1.98
confidentiality
assurance that information is not disclosed to unauthorized individuals, processes, or devices
[SOURCE: IEC TS 62443-1-1:2009, 3.2.28]
3.1.99
configuration
selecting functional units, assigning their locations and defining their
interconnections
[SOURCE: IEC 61804-2:2018, 3.1.12]
3.1.100
consumables
resources that are not individually accounted for in specific production requests, not normally
included in bills of material, or not lot tracked
[SOURCE: IEC 62264-1:2013, 3.1.9]
3.1.101
continuous production
production that is running at a steady rate
[SOURCE: ISO 2859-3:2005, 3.1.1, modified – "running" added and Note deleted]
3.1.102
control application
type of (manufacturing) application that monitors availability, identifies the conditions of
manufacturing assets and provides other applications with such information in order to
accomplish a manufacturing production objective
[SOURCE: ISO 18435-1:2009, 3.6, modified – Introduced the parentheses around
"manufacturing" and replaced the "and" after "availability" with a comma]
3.1.103
control center
central location used to operate a set of assets
Note 1 to entry: Infrastructure industries typically use one or more control centers to supervise or coordinate their
operations. If there are multiple control centers (for example, a backup center at a separate site), they are typically
connected together via a wide area network. The control center contains the SCADA system, host computers and
associated operator display devices plus ancillary information systems such as an historian.
Note 2 to entry: In some industries the term "control room" may be more commonly used.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.29]

3.1.104
control equipment
class that includes distributed control systems, programmable logic controllers, SCADA
systems, associated operator interface consoles, field sensing and final control equipment used
to manage and control the process
[SOURCE: IEC TS 62443-1-1:2009, 3.2.30, modified – Note deleted, "control devices" changed
to "final control equipment"]
3.1.105
control module
lowest level grouping of equipment in the physical model that can carry out basic control
Note 1 to entry: This term applies to both the physical equipment and the equipment entity.
[SOURCE: IEC 61512-1:1997, 3.10]
3.1.106
control network
time-critical network that is typically connected to equipment that controls physical processes
Note 1 to entry: The control network can be subdivided into zones and there can be multiple separate control
networks within one company or site.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.31]
3.1.107
control recipe
type of recipe which, through its execution, defines the manufacture of a single batch of a
specific product
[SOURCE: IEC 61512-1:1997, 3.11]
3.1.108
coordination control
type of control that directs, initiates, and/or modifies the execution of procedural control and
the utilization of equipment entities
[SOURCE: IEC 61512-1:1997, 3.12]
3.1.109
core model
reference model of basic concepts and contexts which concern a general aspect of systems
[SOURCE: VDI-Statusreport – Industrie 4.0 Begriff / Terms 2019]
3.1.110
corrective maintenance
maintenance carried out after fault detection to effect restoration
[SOURCE: IEC 60050-192:2015, 192-06-06, modified – Note 1 to entry deleted]
3.1.111
cost
value of impact to an organization or person that can be measured
[SOURCE: IEC TS 62443-1-1:2009, 3.2.32]

– 22 – IEC TR 63283-1:2022 © IEC 2022
3.1.112
countermeasure
action, device, procedure, or technique that reduces a threat, a vulnerability, or an attack by
eliminating or preventing it, by minimizing the harm it can cause, or by discovering and reporting
it so that corrective action can be taken
Note 1 to entry: The term "control" is also used to describe this concept in some contexts. The term countermeasure
has been chosen for this document to avoid confusion with the term "control" in the context of process control.
[SOURCE: IEC TS 62443-1-1:2009, 3.2.33]
3.1.113
cryptographic algorithm
well-defined computational procedure that takes variable inputs, which may include
cryptographic keys, and produces an output
[SOURCE: ISO/IEC 19790:2012, 3.20]
3.1.114
cryptographic key
input parameter that varies the transformation performed by a cryptographic algorithm
Note 1 to entry: Usually shortened to "key".
[SOURCE: IEC TS 62443-1-1:2009, 3.2.35]
3.1.115
cyber-physical production system
CPPS
CPS which is used in production
[SOURCE: VDI-Statusreport – Industrie 4.0 Begriff / Terms 2019]
3.1.116
cyber-physical system
CPS
...