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Version: 10.9.x



Throughout the Fast Data documentation we use MongoDB terminology since we use MongoDB under the hood to store all your data. If you are not familiar with its terminology check out this comparison with SQL terms.

Fast Data terms

In this page you will find a glossary containing an explanation of the Fast Data terms, together with a link to the page where they are discussed.

TermExplanationMore info
Base projectionIs the projection that correlates 1:1 to your single view, e.g if we have a Single View for your users named "sv_registry", the Base projection will most likely be a projection called "pr_registry"link
Cast functionA function used to transform the data originally coming from the System of Records before it is saved in the Projectionlink
Change Data Capture (CDC)A system that reacts to change of data at some source (in our case the System of Records) by emitting an eventlink
DB2 AdapterThe default Kafka adapterlink
Golden Gate AdapterA Kafka adapter containing before and after fieldslink
Initial projectionIs the projection modified by the ingestion message, e.g if we have an ingestion message that updates a "pr_allergens" document, then our Initial projection will be "pr_allergens"link
Kafka adapterA function that transforms the ingested Kafka messages into a format that can be read by the the Real-Time Updaterlink
ProjectionA Projection is a standardized representation of the data coming from the System of Recordslink
Projection ChangesMongoDB or Kafka event that informs the listener that a Single View needs to be updatedlink
Projection UpdateKafka event that informs the listener that a Projection has been changedlink
Real Time UpdaterThe service responsible for the creation, update and deletion of the Projectionslink
Single ViewA Single View is a document that aggregates data from many Projections, always available and updated in near real-timelink
Single View CreatorThe service responsible for the creation, update and deletion of Single Viewslink
Single View EventKafka message that informs the listener that a Single View has been successfully updatedlink
Single View TriggerThe service responsible for generating events that trigger the update of Single Viewslink
StrategyStrategies are functions that retrieve the unique identifiers of the Single View that needs to be updated or created as consequence of the changes on the Projectionslink
System of RecordsA System of Records is the data source providing the raw information to a Fast Data systemlink