AllenIntervalAlgebra

Generalization is TemporalConstraints.

Superclass hierarchy

Definition

In Allen’s Interval Algebra there are thirteen temporal interval relations: twelve asymmetric ones, i.e. <i>precedes</i>, <i>meets</i>, <i>overlaps</i>, <i>finishes</i>, <i>contains</i>, <i>starts</i> and their converses, plus <i>equals</i>, which is the only one that has no converse or, rather, it is the same as its converse. Together these relations are distinct (any pair of definite intervals are described by one and only one of the relations), exhaustive (any pair of definite intervals are described by one of the relations), and qualitative (no numeric time spans are considered).

Examples

An Allen overlap indicates that within a sequence two procedures overlap in time.

Explanatory notes

Allen’s intervals are pairwise.


Subclasses


Properties

Name

Description

Data Type

Multi- plicity

temporalIntervalRelation

temporalIntervalRelation is an enumeration of type TemporalRelationType.

TemporalRelationType

1..1

Inherited Properties

Name

Description

Data Type

Multi- plicity

description

A desription of the ControlLogic.

TypedString

1..1

workflow

Workflow described as an ExternalControlledVocabulary.

ExternalControlledVocabularyEntry

1..1

agency

Agency expressed as filed with the DDI Agency ID registry [registry.ddialliance.org] with optional additional sub-agency extensions.

:ref:``

1..1

id

ID conforming to the allowed structure of the DDI Identifier and must be unique within the Agency.

:ref:``

1..1

isPersistent

Default value is false indicating that the content of the current version may change (may be in development mode). Set to true when the content of this version will no longer change.

:ref:``

1..1

isUniversallyUnique

Default value is false. If the id of the object was created as a Universally Unique ID (UUID) set to true.

:ref:``

1..1

localId

Locally used identifier unique with a specified context, such as a variable name within a dataset.

LocalIdFormat

0..*

version

Version number of the object.

:ref:``

1..1

versionDate

Date and time the object was changed expressed in standard ISO formats.

XSDdate

0..1

versionRationale

Reason for making a new version of the object.

RationaleDefinition

0..1

versionResponsibility

Contributor who has the ownership and responsibility for the current version.

:ref:``

0..1

Diagram

TBD