The purpose of this article is to describe the types of logical and physical relationships which can be established between objects from different modules.
To learn more about relationships between objects belonging to the same module, please refer to these articles:
- [Basics] The glossary objects in detail
- [Basics] The dictionary objects in detail
- [Basics] The data processing objects in detail
- [Basics] The uses objects in detail
The links between objects in the catalogue and other modules are described in these articles:
Note: the links between objects in the Strategy, Governance and Products modules are described in their respective articles.
As described in "the DataGalaxy metamodel", it is possible to link together objects from different modules.
The purpose of these relationships is to:
- Describe how different objects are being used,
- Feed the analysis module (exploration & lineage).
In the table below:
- Physical links (in grey): these are the ones that appear in the lineage and exploratory analysis. Only the following 5 types of links are included:
Implements / Is implemented by
Uses / Is used by
Calls / Is called by
Is an input (output) for / Has input (output)
Is a source (destination) usage for / Has source (destination) usage

- Logical links (in blue): these are the ones that only appear in the exploratory analysis.
In a picture, links between ...
... the modules

... objects inside of the catalog


... specific cases (universe / domain)
In details ...
... from the glossary
Object type A | Relation from A to B | Relation from B to A | Object type B |
Universe | Logic links | ||
has for domain | is the domain of | Domain | |
is the universe of | has for universe | Dimension | |
Database Field | |||
Data flow | |||
Application | |||
| is linked to | is linked to | all DataGalaxy objects | |
Concept | Logic links | ||
has for domain | is the domain of | Domain | |
is a synonym of | is a synonym of | Concept | |
generalizes | specializes | ||
specializes | generalizes | ||
depends on | is needed by | ||
is needed by | depends on | ||
is part of the dimension | regroups | Dimension | |
is linked to | is linked to | all DataGalaxy objects | |
has for recording system | is recording system for | Database FileStore NoSQL source TagBase source Model Directory Equipment | |
Physical links | |||
is used by | uses | Application Usage field Usage component | |
| is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
Business term | Logic links | ||
has for domain | is the domain of | Domain | |
is a synonym of | is a synonym of | Business term | |
generalizes | specializes | ||
specializes | generalizes | ||
is computed by | is used for computation of | Business term | |
is used for computation of | is computed by | ||
has for reference data | lists values for | Reference data | |
is part of dimension | regroups | Dimension | |
is linked to | is linked to | all DataGalaxy objects | |
has for recording system | is recording system for | Database | |
Physical links | |||
| is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
is used by | uses | Application Usage field Usage component | |
Indicator | Logic links | ||
has for domain | is the domain of | Domain | |
is computed by | is used for computation of | Business term | |
is used for computation of | is computed by | ||
is declined according to the dimension | declines | Dimension | |
is a synonym of | is a synonym of | Indicator | |
generalizes | specializes | ||
specializes | generalizes | ||
is linked to | is linked to | all DataGalaxy objects | |
| has for recording system | is recording system for | Database | |
Physical links | |||
| is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
is used by | uses | Application Dashboard Screen Algorithm Dataset Open Dataset Report Feature Usage Process Usage field Usage component | |
Indicator group | Logic links | ||
has for domain | is the domain of | Domain | |
is linked to | is linked to | all DataGalaxy objects | |
has for recording system | is recording system for | Database | |
Physical links | |||
is used by | uses | Application Usage field Usage component | |
is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
Reference data | Logic links | ||
has for domain | is the domain of | Domain | |
lists values for | has for reference data | Business term | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
is used by | uses | Application Usage field Usage component | |
is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
Reference data value | Logic links | ||
has for domain | is a domain for | Domain | |
transcode | transcode | Reference data value | |
is linked to | is linked to | all DataGalaxy objects | |
Domaine | Logic links | ||
is the domain of | has for domain | Universe Indicator Business term | |
Application Usage component Usage field | |||
Data flow | |||
Database Field | |||
is linked to | is linked to | all DataGalaxy objects | |
Domain group | No relationship possible for this type of object | NA | |
Dimension | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
declines | is declined according to the dimension | Indicator | |
is proposed in | proposes the dimension | Application | |
regroups | is part of the dimension | Concept | |
is a synonym of | is a synonym of | Dimension | |
generalizes | specializes | ||
specializes | generalizes | ||
| lists value for | has for reference data | Reference data | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
| is used by | uses | Application Usage field Usage component | |
Dimension group | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Univers | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
is implemented by | implements | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
| is used by | uses | Application Usage field Usage component | |
... from the dictionary
Object type A | Relation from A to B | Relation from B to A | Object type B |
Sources : | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
is source of | has for source | Application | |
is linked to | is linked to | all DataGalaxy objects | |
is recording system for | has for recording system | Concept Business term Indicator Indicator group | |
Physical links | |||
is input of | has input | Data flow Data processing | |
is output of | has output | ||
is used by | uses | Application Usage field Usage component | |
| Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |||
implements | is implemented by | Concept Indicator group Reference data Dimension Dimension group | |
Containers : | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
is source of | has for source | Application | |
is linked to | is linked to | all DataGalaxy objects | |
is recording system for | has for recording system | Concept Business term Indicator Indicator group | |
Physical links | |||
is input of | has input | Data flow Data processing | |
is output of | has output | ||
is used by | uses | Application Usage field Usage component | |
| Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |||
implements | is implemented by | Concept Indicator group Reference data Dimension Dimension group | |
Structures : | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
implements | is implemented by | Concept Indicator group Reference data Dimension Dimension group | |
is used by | uses | Application Usage field Usage component | |
| Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |||
Is input of | has input | Data flow Data processing | |
Is output of | has output | ||
Champs : | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
implements | is implemented by | Concept Indicator group Reference data Dimension Dimension group | |
is used by | uses | Application Usage field Usage component | |
| Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |||
Is input of | has input | Data flow Data processing | |
Is output of | has output | ||
... from data processing
Object type A | Relation from A to B | Relation from B to A | Object type B |
Data flow | Logic links | ||
depends on | is needed by | Data flow | |
is needed by | depends on | ||
precedes | follows | ||
follows | precedes | ||
has for universe | is the universe of | Universe | |
has for domain | is the domain of | Domain | |
has for usage source | is usage source for | Application | |
has for usage destination | is usage destination for | ||
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
has input | is input of | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
has output | is output of | ||
Data processing | Logic links | ||
depends on | is needed by | Data processing | |
is needed by | depends on | ||
precedes | follows | ||
follows | precedes | ||
has for universe | is the universe of | Universe | |
has for domain | is the domain of | Domain | |
has for usage source | is usage source for | Application | |
has for usage destination | is usage destination for | ||
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
has input | is input of | Database FileStore NoSQL source TagBase source Model Directory Equipment Table Column | |
has output | is output of | ||
... from the uses
Object type A | Relation from A to B | Relation from B to A | Object type B |
Application | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
proposes the dimension | is proposed in | Dimension | |
has for source | is source of | Database | |
is usage source for | has for usage source | Data flow | |
is usage destination for | has for usage destination | ||
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
| calls | is called by | Application Usage field Usage component | |
| is called by | calls | ||
is usage source for | has for usage source | Data flow | |
is usage destination for | has for usage destination | ||
Algorithm | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Usage field Usage component | |
is called by | calls | ||
is usage source for | has for usage source | Data flow | |
is usage destination for | has for usage destination | ||
DataSet | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
propose the dimension | is proposed in | Dimension | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Usage field Usage component | |
is called by | calls | ||
is usage source for | has for usage source | Data flow Data processing | |
is usage destination for | has for usage destination | ||
Open DataSet | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
propose the dimension | is proposed in | Dimension | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Usage field Usage component | |
is called by | calls | ||
is usage source for | has for usage source | Data flow Data processing | |
is usage destination for | has for usage destination | ||
Screen | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
| calls | is called by | Application Usage field Usage component | |
is called by | calls | ||
is usage source for | has for usage source | Data flow | |
is usage destination for | has for usage destination | ||
Feature | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
propose the dimension | is proposed in | Dimension | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Dashboard Screen Algorithm Dataset Open Dataset Report Feature Usage Process Usage field Usage component | |
is called by | calls | ||
is usage source for | has for usage source | Data flow Data processing | |
is usage destination for | has for usage destination | ||
Dashboard | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
propose the dimension | is proposed in | Dimension | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Dashboard Screen Algorithm Dataset Open Dataset Report Feature Usage Process Usage field Usage component | |
| is called by | calls | ||
is usage source for | has for usage source | Data flow Data processing | |
is usage destination for | has for usage destination | ||
Report | Logic links | ||
| has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
propose the dimension | is proposed in | Dimension | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Dashboard Screen Algorithm Dataset Open Dataset Report Feature Usage Process Usage field Usage component | |
| is called by | calls | ||
is usage source for | has for usage source | Data flow Data processing | |
is usage destination for | has for usage destination | ||
Process | Logic links | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Dashboard Screen Algorithm Dataset Open Dataset Report Feature Usage Process Usage field Usage component | |
| is called by | calls | ||
is usage source for | has for usage source | Data flow | |
is usage destination for | has for usage destination | ||
Usage | Liens logiques | ||
has for domain | is the domain of | Domain | |
has for universe | is the universe of | Universe | |
has for source | is source of | Database | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Dashboard Screen Algorithm Dataset Open Dataset Report Feature Usage Process Usage field Usage component | |
is called by | calls | ||
is usage source for | has for usage source | Data flow | |
is usage destination for | has for usage destination | ||
Usage field | Logic links | ||
| has for domain | is the domain of | Domain | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Usage field Usage component | |
is called by | calls | ||
| is usage source for | has for usage source | Data flow | |
Usage component | Logic links | ||
| has for domain | is the domain of | Domain | |
is linked to | is linked to | all DataGalaxy objects | |
Physical links | |||
uses | is used by | Concept Reference data Dimension Dimension group | |
Database Field | |||
calls | is called by | Application Usage field Usage component | |
is called by | calls | ||
