Logical Data Modeling - Observation

Data System Architecture

About

Observation specifies a value determined by observing an event or events that occur relative to other model Elements.

ie an event is the result of an observation.

Documentation / Reference




Discover More
Card Puncher Data Processing
Design Pattern - Observer (Publish-subscribe model|Pub Sub)

An observer makes a observation by creating an event and passing it to a callback method of the subscriber. The observer is also called a message broker because it dispatches the event (ie message) to...
Event Conceptual Model
Event (Timed Measure|Action)

An event is a timed observed physical reality described by: space (location) participant. The observations describing the event are defined by the nature or physics of the observable, the observation...
Data System Architecture
Logical Data Modeling - Value (Operand)

A value may be obtained by: observation or measurement Values may represents the structural characteristic of: an entity (case) or a relationship A value is stored in a field (cell). ...



Share this page:
Follow us:
Task Runner