Append Only Models Flashcards
1
Q
Advantage 1
A
Cannot destroy information, Auditing
2
Q
Advantage 2
A
Correct Historical Errors
3
Q
Advantage 3
A
Commands Append
4
Q
Advantage 4
A
Historical Replay
5
Q
what is event sourcing
A
Storing all events and calculating current state (like transaction logs)
6
Q
Why is it good for integration?
A
When we want to talk to another system, we want to sent it all the events that have happened in the past.
7
Q
Does event sourcing allow for temporal decoupling?
A
Yes
8
Q
What is an event stream?
A
Data Structured created for sequence of events
9
Q
How is event streaming like event sourcing?
A
captures history
10
Q
How is it unlike event sourcing?
A
History is not directly queryable. It replays on aggregates.
11
Q
Event sourcing works well on RDMS?
A
Yes
12
Q
Event stream works well on document database?
A
Yes
