many-to-one
Several become one
Many-to-one describes a relationship where multiple items connect to a single item.
In databases, many customers may link to one account representative.
In mathematics, a many-to-one function maps several inputs to the same output.
The phrase contrasts with one-to-one, one-to-many, and many-to-many relationships.
Purpose or duty
- relationConnection or kin
- associationGroup with shared aim
- transformationThorough change in form
- correspondenceExchanged written communication
projection · aggregation · cardinality · domain · range · collapse · reduction · convergence
Connect or enlist
- lookupAct of retrieving information
- referenceDirecting attention elsewhere
- relationshipConnection between entities
- cardinalitySize of a set
normalization · entity · schema · constraint · table · index · dependency · association
Passage for transmission
- signalMessage-conveying cue
- combinerSomething that joins elements
- encoderFormat conversion component
- aggregatorCombines content from sources
concentrator · funnel · bottleneck · bandwidth · compression · stream · input · demultiplexer
function
Purpose or duty
- relationConnection or kin
- associationGroup with shared aim
- transformationThorough change in form
correspondence · projection · aggregation · cardinality · domain · range · collapse · reduction · convergence · lookup
join
Connect or enlist
- lookupAct of retrieving information
- referenceDirecting attention elsewhere
- relationshipConnection between entities
cardinality · normalization · entity · schema · constraint · table · index · dependency · association · linking
channel
Passage for transmission
aggregator · concentrator · funnel · bottleneck · bandwidth · compression · stream · input · demultiplexer · time-division
- relationsrelation, relationship, equivalence relation, connection, link
- ORMentity, persist, mapping, hibernate, persistence
- neural networksneural network, neural networks, hidden layers, backpropagation, layers
many-to-oneone-to-many
Single source, multiple targets
one-to-one · fan-out · branching · divergent · distributed