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Administered Item

A registry item for which administrative information is recorded in an Administration Record including Classification Scheme, Conceptual Domain, Context, Data Element, Data Element Concept, Object Class, Property, Representation Class, and Value Domain.


A characteristic of an object or entity required to describe metadata items.


An established rule, principle, or law.

Best Practice

The inclusion of the attribute is recommended for quality metadata to be reused.


The Cancer Data Standards Registry and Repository (caDSR) is a database and a collection of APIs and tools used to create, edit, control, deploy, monitor and find common data elements (CDEs) and Case Report Forms (CRFs) for metadata consumers and for UML or information model development.

Code Set

A select list of terminology.

Common Data Element (CDE)

Used interchangeably with Data Element (DE), a caDSR CDE is the definition, identification, representation and permissible values specified by means of a set of attributes (metadata). The CDE describes an individual unit of data which is considered indivisible in context. NCI coined this term to indicate that the data elements are to be shared across communities and thus "common". Synonym - Data Element (DE).


An abstract idea created by a unique combination of characteristics.


A business rule is applied to determine whether or not an attribute of an administered item is required within the registry.


An organizational unit that owns and maintains content in the registry/ repository.  A Context is an organizational division within an ISO/IEC 11179 model.  A Context may represent a business unit or some other content division that is responsible for creating and managing Administered Items either in which they originated or are used, and for which the primary name and definition apply.

Concept Unique Identifier (CUI)

A unique identifier (code) assigned for each concept that belongs to a particular controlled terminology. The terminology owner ensures the uniqueness of the concept identifier within the terminology.

Data Element

The description of a unit of data which includes the definition, identification, representation, and permissible values specified by means of a set of attributes.  Synonym - Common Data Element (CDE). Note: in some communities, the term "data element" refers to instances of data, that are described by caDSR Data Elements.  In caDSR, there is no data, only the attributes describing the data (metadata).

Data Element Concept (DEC)

An idea that can be represented as data, something observable or measurable, described independently of any particular representation. It may be an individual concept, or a set of concepts.

Data Group

A set of data elements considered as a logical unit.

Derivation Input

The relationship specifying the source Data Element(s) for a Data Element Derivation.

Derivation Output

The relationship denoting the result of a Data Element Derivation.

Derivation Rule

The logical, mathematical, and/or other operations specifying derivation.

Derivation Rule Specification

The text of a specification of Derivation Rule.

Derived Data Element

A data element whose values are derived through a transformation of the values of one or more other data elements, or the collection of a group of data elements.  This may be mathematical, logical, linkages, or some other type (including a combination of these basic types).


The specification of a Value Domain by a list of permissible values and their meanings.


One of two or more words that have identical spellings but different meanings and pronunciations, such as row (a series of objects arranged in a line), pronounced (r?), and row (a fight), pronounced (rou).


One of two or more words that have the same spelling but differ in origin, meaning, and sometimes pronunciation, such as fair (pleasing in appearance) and fair (market) or wind (w?nd) and wind (w?nd).


One of two or more words that have the same sound and often the same spelling but differ in meaning, such as bank (embankment) and bank (place where money is kept).


A number with no fractional part, including the negative and positive numbers as well as zero.


A stock of terms used in a particular profession, subject, or style; A word book describing language with definitions.

Likert scale

A scale often used in studies of attitudes and perceptions in which the raw scores are based on graded alternative responses to each of a series of questions.  For example the subject may be asked to indicate his/her degree of agreement with each of a series of statements related to an attitude or perception.

Long Name

A readable and descriptive phrase describing an administered item. In caDSR, this is equivalent to the ISO/IEC 11179-3:2013 Sign with an acceptability of "preferred".


Attributes that must be present in the administered item.


A set of questions or other items designed to assess knowledge, skills, attitudes, behaviors or other characteristics of an examinee. (Adapted from the American Psychological Association APA Concise Dictionary of Psychology)


A set of concepts in a particular domain.  Definitions associate the names of entities in a logic grouping (e.g., classes, relations, functions or other objects) with human-readable text describing what the names mean and formal axioms that constrain the interpretation and well-formed use of these terms.  Interrelationships between terms is often found, such as hierarchical relationships or others that convey more nuisanced meaning. An example is animal taxonomy.

Permissible Value

The exact names, codes, and text that can be stored in a data field in an information management system.

Pre-Coordinated Term

An NCIt defined concept comprised of multiple terms with a specific definition and one concept code.


Combining individual concepts together to form a term


A term used in conjunction with a primary term that helps define and render a concept unique.


The representation is composed of a value domain, data type, units of measure (if necessary), and representation class (optionally).

Representation Term (Rep Term)

A word or a combination of words that semantically categorizes the value domain of a data element.  ISO/IEC 11179-5:2005 defines representation term as a designation of an instance of a representation class.  As used in ISO/IEC 11179, the Rep Term is that part of a data element name that provides a semantic interpretation of the underlying data type.

Short Name

An abbreviated representation of the long name of an administered item.

Sub Score

The mean or sum of the scores derived from a Likert scale for a particular section within a measure.


A word having the same or nearly the same meaning as another word or other words in a language.


The vocabulary of technical terms used in a particular field, subject, science, or art; nomenclature.

Value Domain (VD)

A set of attributes describing representational characteristics of instance data with or without enumerated permissible values, such as maximum length, datatype and unit of measure.

Value Meaning

The reusable metadata item that defines the meaning of a permissible value; the meaning or semantic content of a data value, often linked to a concept identifier.

Value Meaning Description

The definition or description of the value meaning.


All the words of a language; the sum of words used by, understood by, or at the command of a particular person or group; a supply of terms and/or phrases.