# Class: RelationalDiff


_A relational diff expresses the difference between an edge in one ontology, and an edge (or lack of edge) in_

_another ontology (or a different version of the same ontology). The diff is from the perspective of one_

_ontology (the one on the "left" side)._

__

_For every edge in the left ontology, the subject and object are mapped to the right ontology._

_If mappings cannot be found then the diff is categorized as missing mappings._

_The predicate is also mapped, with the reflexivity assumption._

__

_for every mapped subject and object pair (the "right" subject and object), the entailed relationship_

_is examined to determine if it consistent with the left predicate._

__

_```_

_left_object    <--- mapped to ---> right_object_

_   ^                                  ^_

_   |                                  |_

_   |                                  |_

_   | left                             | right_

_   | predicate                        | predicate_

_   |                                  |_

_   |                                  |_

_left_subject   <--- mapped to ---> right_subject_

_```_

__

_The above figure gives hows the basic structure. Classification of the edge is done from the perspective_

_of the left edge._





URI: [xodiff:RelationalDiff](https://w3id.org/oak/cross-ontology-diff/RelationalDiff)






```{mermaid}
 classDiagram
    class RelationalDiff
    click RelationalDiff href "../RelationalDiff"
      RelationalDiff : category
        
          
    
    
    RelationalDiff --> "0..1" DiffCategory : category
    click DiffCategory href "../DiffCategory"

        
      RelationalDiff : left_object_id
        
      RelationalDiff : left_object_is_functional
        
      RelationalDiff : left_object_label
        
      RelationalDiff : left_predicate_id
        
      RelationalDiff : left_predicate_label
        
      RelationalDiff : left_subject_id
        
      RelationalDiff : left_subject_is_functional
        
      RelationalDiff : left_subject_label
        
      RelationalDiff : object_mapping_cardinality
        
          
    
    
    RelationalDiff --> "0..1" MappingCardinalityEnum : object_mapping_cardinality
    click MappingCardinalityEnum href "../MappingCardinalityEnum"

        
      RelationalDiff : object_mapping_predicate
        
      RelationalDiff : right_intermediate_ids
        
      RelationalDiff : right_object_id
        
      RelationalDiff : right_object_label
        
      RelationalDiff : right_predicate_ids
        
      RelationalDiff : right_predicate_labels
        
      RelationalDiff : right_subject_id
        
      RelationalDiff : right_subject_label
        
      RelationalDiff : subject_mapping_cardinality
        
          
    
    
    RelationalDiff --> "0..1" MappingCardinalityEnum : subject_mapping_cardinality
    click MappingCardinalityEnum href "../MappingCardinalityEnum"

        
      RelationalDiff : subject_mapping_predicate
        
      
```




<!-- no inheritance hierarchy -->


## Slots

| Name | Cardinality and Range | Description | Inheritance |
| ---  | --- | --- | --- |
| [category](category.md) | 0..1 <br/> [DiffCategory](DiffCategory.md) | Each match (or lack of match) is placed into exactly one category | direct |
| [left_subject_id](left_subject_id.md) | 1 <br/> [EntityReference](EntityReference.md) | The subject (child) of the source/left edge | direct |
| [left_object_id](left_object_id.md) | 1 <br/> [EntityReference](EntityReference.md) | The object (parent) of the source/left edge | direct |
| [left_predicate_id](left_predicate_id.md) | 1 <br/> [EntityReference](EntityReference.md) | The predicate (relation) of the source/left edge | direct |
| [left_subject_label](left_subject_label.md) | 0..1 <br/> [Label](Label.md) | The name of the subject (child) of the source/left edge | direct |
| [left_object_label](left_object_label.md) | 0..1 <br/> [Label](Label.md) | The name of the object (parent) of the source/left edge | direct |
| [left_predicate_label](left_predicate_label.md) | 0..1 <br/> [Label](Label.md) | The name of the predicate of the source/left edge | direct |
| [right_subject_id](right_subject_id.md) | 0..1 <br/> [EntityReference](EntityReference.md) | The subject (child) of the matched/right edge, if matchable | direct |
| [right_object_id](right_object_id.md) | 0..1 <br/> [EntityReference](EntityReference.md) | The object (parent) of the matched/right edge, if matchable | direct |
| [right_predicate_ids](right_predicate_ids.md) | * <br/> [EntityReference](EntityReference.md) | * If the match type is consistent, then all consistent predicates | direct |
| [right_subject_label](right_subject_label.md) | 0..1 <br/> [Label](Label.md) | The name of the subject (child) of the matched/right edge, if matchable | direct |
| [right_object_label](right_object_label.md) | 0..1 <br/> [Label](Label.md) | The name of the object (parent) of the matched/right edge, if matchable | direct |
| [right_predicate_labels](right_predicate_labels.md) | * <br/> [Label](Label.md) | The names corresponding to the right_predicate_ids | direct |
| [left_subject_is_functional](left_subject_is_functional.md) | 0..1 <br/> [String](String.md) | True if a subject mapping is present, and maps uniquely within the same ontol... | direct |
| [left_object_is_functional](left_object_is_functional.md) | 0..1 <br/> [String](String.md) | True if an object mapping is present, and maps uniquely within the same ontol... | direct |
| [subject_mapping_predicate](subject_mapping_predicate.md) | 0..1 <br/> [EntityReference](EntityReference.md) | The mapping predicate that holds between left_subject_id and right_subject_id | direct |
| [object_mapping_predicate](object_mapping_predicate.md) | 0..1 <br/> [EntityReference](EntityReference.md) | The mapping predicate that holds between left_object_id and right_object_id | direct |
| [right_intermediate_ids](right_intermediate_ids.md) | * <br/> [EntityReference](EntityReference.md) |  | direct |
| [subject_mapping_cardinality](subject_mapping_cardinality.md) | 0..1 <br/> [MappingCardinalityEnum](MappingCardinalityEnum.md) | The mapping cardinality of the subject pair | direct |
| [object_mapping_cardinality](object_mapping_cardinality.md) | 0..1 <br/> [MappingCardinalityEnum](MappingCardinalityEnum.md) | The mapping cardinality of the object pair | direct |





## Usages

| used by | used in | type | used |
| ---  | --- | --- | --- |
| [StructureDiffResultSet](StructureDiffResultSet.md) | [results](results.md) | range | [RelationalDiff](RelationalDiff.md) |






## Identifier and Mapping Information







### Schema Source


* from schema: https://w3id.org/oak/cross-ontology-diff




## Mappings

| Mapping Type | Mapped Value |
| ---  | ---  |
| self | xodiff:RelationalDiff |
| native | xodiff:RelationalDiff |







## LinkML Source

<!-- TODO: investigate https://stackoverflow.com/questions/37606292/how-to-create-tabbed-code-blocks-in-mkdocs-or-sphinx -->

### Direct

<details>
```yaml
name: RelationalDiff
description: "A relational diff expresses the difference between an edge in one ontology,\
  \ and an edge (or lack of edge) in\nanother ontology (or a different version of\
  \ the same ontology). The diff is from the perspective of one\nontology (the one\
  \ on the \"left\" side).\n\nFor every edge in the left ontology, the subject and\
  \ object are mapped to the right ontology.\nIf mappings cannot be found then the\
  \ diff is categorized as missing mappings.\nThe predicate is also mapped, with the\
  \ reflexivity assumption.\n\nfor every mapped subject and object pair (the \"right\"\
  \ subject and object), the entailed relationship\nis examined to determine if it\
  \ consistent with the left predicate.\n\n```\nleft_object    <--- mapped to --->\
  \ right_object\n   ^                                  ^\n   |                  \
  \                |\n   |                                  |\n   | left         \
  \                    | right\n   | predicate                        | predicate\n\
  \   |                                  |\n   |                                 \
  \ |\nleft_subject   <--- mapped to ---> right_subject\n```\n\nThe above figure gives\
  \ hows the basic structure. Classification of the edge is done from the perspective\n\
  of the left edge."
from_schema: https://w3id.org/oak/cross-ontology-diff
attributes:
  category:
    name: category
    description: Each match (or lack of match) is placed into exactly one category
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    domain_of:
    - RelationalDiff
    range: DiffCategory
  left_subject_id:
    name: left_subject_id
    description: The subject (child) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - subject
    domain_of:
    - RelationalDiff
    range: EntityReference
    required: true
  left_object_id:
    name: left_object_id
    description: The object (parent) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - object
    domain_of:
    - RelationalDiff
    range: EntityReference
    required: true
  left_predicate_id:
    name: left_predicate_id
    description: The predicate (relation) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - predicate
    domain_of:
    - RelationalDiff
    range: EntityReference
    required: true
  left_subject_label:
    name: left_subject_label
    description: The name of the subject (child) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - subject
    - label
    domain_of:
    - RelationalDiff
    range: Label
  left_object_label:
    name: left_object_label
    description: The name of the object (parent) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - object
    - label
    domain_of:
    - RelationalDiff
    range: Label
  left_predicate_label:
    name: left_predicate_label
    description: The name of the predicate of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - predicate
    - label
    domain_of:
    - RelationalDiff
    range: Label
  right_subject_id:
    name: right_subject_id
    description: The subject (child) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - subject
    domain_of:
    - RelationalDiff
    range: EntityReference
  right_object_id:
    name: right_object_id
    description: The object (parent) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - object
    domain_of:
    - RelationalDiff
    range: EntityReference
  right_predicate_ids:
    name: right_predicate_ids
    description: '* If the match type is consistent, then all consistent predicates.

      * If the match type is identical, then the identical predicate.

      * If the match type is OtherRelationship, then all predicates that form a path
      between right subject and object'
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - predicate
    domain_of:
    - RelationalDiff
    range: EntityReference
    multivalued: true
  right_subject_label:
    name: right_subject_label
    description: The name of the subject (child) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - subject
    - label
    domain_of:
    - RelationalDiff
    range: Label
  right_object_label:
    name: right_object_label
    description: The name of the object (parent) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - object
    - label
    domain_of:
    - RelationalDiff
    range: Label
  right_predicate_labels:
    name: right_predicate_labels
    description: The names corresponding to the right_predicate_ids
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - predicate
    - label
    domain_of:
    - RelationalDiff
    range: Label
    multivalued: true
  left_subject_is_functional:
    name: left_subject_is_functional
    description: True if a subject mapping is present, and maps uniquely within the
      same ontology
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - is_functional
    domain_of:
    - RelationalDiff
  left_object_is_functional:
    name: left_object_is_functional
    description: True if an object mapping is present, and maps uniquely within the
      same ontology
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - is_functional
    domain_of:
    - RelationalDiff
  subject_mapping_predicate:
    name: subject_mapping_predicate
    description: The mapping predicate that holds between left_subject_id and right_subject_id
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - subject
    - predicate
    domain_of:
    - RelationalDiff
    range: EntityReference
  object_mapping_predicate:
    name: object_mapping_predicate
    description: The mapping predicate that holds between left_object_id and right_object_id
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - subject
    - predicate
    domain_of:
    - RelationalDiff
    range: EntityReference
  right_intermediate_ids:
    name: right_intermediate_ids
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    domain_of:
    - RelationalDiff
    range: EntityReference
    multivalued: true
  subject_mapping_cardinality:
    name: subject_mapping_cardinality
    description: The mapping cardinality of the subject pair
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    domain_of:
    - RelationalDiff
    range: MappingCardinalityEnum
  object_mapping_cardinality:
    name: object_mapping_cardinality
    description: The mapping cardinality of the object pair
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    domain_of:
    - RelationalDiff
    range: MappingCardinalityEnum

```
</details>

### Induced

<details>
```yaml
name: RelationalDiff
description: "A relational diff expresses the difference between an edge in one ontology,\
  \ and an edge (or lack of edge) in\nanother ontology (or a different version of\
  \ the same ontology). The diff is from the perspective of one\nontology (the one\
  \ on the \"left\" side).\n\nFor every edge in the left ontology, the subject and\
  \ object are mapped to the right ontology.\nIf mappings cannot be found then the\
  \ diff is categorized as missing mappings.\nThe predicate is also mapped, with the\
  \ reflexivity assumption.\n\nfor every mapped subject and object pair (the \"right\"\
  \ subject and object), the entailed relationship\nis examined to determine if it\
  \ consistent with the left predicate.\n\n```\nleft_object    <--- mapped to --->\
  \ right_object\n   ^                                  ^\n   |                  \
  \                |\n   |                                  |\n   | left         \
  \                    | right\n   | predicate                        | predicate\n\
  \   |                                  |\n   |                                 \
  \ |\nleft_subject   <--- mapped to ---> right_subject\n```\n\nThe above figure gives\
  \ hows the basic structure. Classification of the edge is done from the perspective\n\
  of the left edge."
from_schema: https://w3id.org/oak/cross-ontology-diff
attributes:
  category:
    name: category
    description: Each match (or lack of match) is placed into exactly one category
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    alias: category
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: DiffCategory
  left_subject_id:
    name: left_subject_id
    description: The subject (child) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - subject
    alias: left_subject_id
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
    required: true
  left_object_id:
    name: left_object_id
    description: The object (parent) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - object
    alias: left_object_id
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
    required: true
  left_predicate_id:
    name: left_predicate_id
    description: The predicate (relation) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - predicate
    alias: left_predicate_id
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
    required: true
  left_subject_label:
    name: left_subject_label
    description: The name of the subject (child) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - subject
    - label
    alias: left_subject_label
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: Label
  left_object_label:
    name: left_object_label
    description: The name of the object (parent) of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - object
    - label
    alias: left_object_label
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: Label
  left_predicate_label:
    name: left_predicate_label
    description: The name of the predicate of the source/left edge
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - predicate
    - label
    alias: left_predicate_label
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: Label
  right_subject_id:
    name: right_subject_id
    description: The subject (child) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - subject
    alias: right_subject_id
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
  right_object_id:
    name: right_object_id
    description: The object (parent) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - object
    alias: right_object_id
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
  right_predicate_ids:
    name: right_predicate_ids
    description: '* If the match type is consistent, then all consistent predicates.

      * If the match type is identical, then the identical predicate.

      * If the match type is OtherRelationship, then all predicates that form a path
      between right subject and object'
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - predicate
    alias: right_predicate_ids
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
    multivalued: true
  right_subject_label:
    name: right_subject_label
    description: The name of the subject (child) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - subject
    - label
    alias: right_subject_label
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: Label
  right_object_label:
    name: right_object_label
    description: The name of the object (parent) of the matched/right edge, if matchable
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - object
    - label
    alias: right_object_label
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: Label
  right_predicate_labels:
    name: right_predicate_labels
    description: The names corresponding to the right_predicate_ids
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - right_side
    - predicate
    - label
    alias: right_predicate_labels
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: Label
    multivalued: true
  left_subject_is_functional:
    name: left_subject_is_functional
    description: True if a subject mapping is present, and maps uniquely within the
      same ontology
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - is_functional
    alias: left_subject_is_functional
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: string
  left_object_is_functional:
    name: left_object_is_functional
    description: True if an object mapping is present, and maps uniquely within the
      same ontology
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - left_side
    - is_functional
    alias: left_object_is_functional
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: string
  subject_mapping_predicate:
    name: subject_mapping_predicate
    description: The mapping predicate that holds between left_subject_id and right_subject_id
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - subject
    - predicate
    alias: subject_mapping_predicate
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
  object_mapping_predicate:
    name: object_mapping_predicate
    description: The mapping predicate that holds between left_object_id and right_object_id
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    mixins:
    - subject
    - predicate
    alias: object_mapping_predicate
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
  right_intermediate_ids:
    name: right_intermediate_ids
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    alias: right_intermediate_ids
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: EntityReference
    multivalued: true
  subject_mapping_cardinality:
    name: subject_mapping_cardinality
    description: The mapping cardinality of the subject pair
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    alias: subject_mapping_cardinality
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: MappingCardinalityEnum
  object_mapping_cardinality:
    name: object_mapping_cardinality
    description: The mapping cardinality of the object pair
    from_schema: https://w3id.org/oak/cross-ontology-diff
    rank: 1000
    alias: object_mapping_cardinality
    owner: RelationalDiff
    domain_of:
    - RelationalDiff
    range: MappingCardinalityEnum

```
</details>