Data - State

1 - About

State is the attribute values of a thing at a given moment.

A State can be seen as a snapshot of values at a precise moment.

A entity may have several related primary state stored in a attribute called status that forms together a lifecyle.

3 - Example

  • File: if a line was added to a file, the file has a new state
  • Variable: if a variable has a new value, the variable has a new state
  • A on/off button has two states:

4 - Management

4.1 - History

See Data - History (Versioning) - Historical Data

4.2 - Reaction

Tracking the changes to values as your program runs and propagating this change is called reactive programming.

4.3 - Graph

Automata models computing devices or machines through state transition. See Automata - State

5 - Documentation / Reference


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