April 2026
Intermediate
491 pages
18h 4m
English
Content preview from Software Architecture and Design
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7.10 Event Sourcing Pattern
The event sourcing pattern is an architectural approach in which the complete change history of data objects is stored in the form of events instead of their current status. The current status is reconstructed from the totality of the events.
7.10.1 Problem and Motivation
Applications often use databases to store the current status of a data object. In the case of fleet management software, for example, this status could be the current position of a particular ship. If new position information is received, the status of the ship (i.e., its position) is updated accordingly in the database.
However, this approach also has disadvantages in terms of traceability and auditability: The old status is overwritten with ...
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