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'Talking Objects' Solutions.

one of possible programming paradigms is 'object oriented programming'.

reality is modelled somehow, for example, using graphical notation as Shlaer-Mellor, UML, custom hybrid, etc ...

objects representing something are arranged in a graph data structure.

each of object has set of possible states as well as transitions between these, as well as cause(s) of these transitions.

for example:

in one of possible designs & models of 'reality', more or less 'real' or 'useful' for 'certain problem's solution'.

not every problem must be 'realistic' or 'adhere to common sense', this can be 'abstract problem', 'hypothetical problem', 'philosophical problem', 'mathematical problem', 'theoretical problem', etc ... they are useful nevertheless for certain people that think that way.

we have object: 'Cat' in 'awake' state.

'Cat' in 'awake state' can transit to 'sleeping' or 'walking' state.
'Cat' in 'sleeping' state can transit to 'awake' state.
'Cat' in 'walking state' can transit to 'awake' or 'sleeping state'.

in given state 'Cat' behaves differently, perhaps sending messages to other objects, perhaps doing something 'internal' instead or as well.


this can be modelled using finite state automatons.

perhaps in our 'surreal model of reality' cats can talk with each other by sending messages to other 'Cat' objects, or other 'Animal' objects as well, for example 'Dog' objects.

this is called 'talking objects' system design, modelling, programming, etc ...

sending 'message' from one object to another, often containing 'parameters' or 'value' can cause 'state change' in 'target object'.

for example 'Cat' can send message to 'Dog' with 'value' of 'get lost'.
or for example 'Cat' can send message to 'Dog' with 'value' of 'eat your friends'.

different 'values' can cause different 'state change(s)' in 'target object'.


different solutions use different models for different objects even if their names are the same.

there can be many possible models of 'Cat' each behaving differently, depending of what we wish to model ...

- is it 'Alley Cat Computer Game' ?
- is it 'Cat Hospital' management application ?

in each of these models 'Cat' is seen & modelled differently, has different possible states & state transition methods.

it's a different object.

everything depends on context as well.

see also, if You wish or need ... : Conversation State, Practice, Object Relationships Modelling & Analysis.

see also, if You must: 'Make friends with strange cats' on deviantART.


  1. can 'sleeping' mean 'lack of light, lack of happiness, lack of awareness, lack of life, lack of love, ...' ?
    can 'awake' mean 'in light, happy, aware, alive, in love' ?
    can 'walking' mean 'in bardo, in-between, doing something else than walking as well, talking, this can also be awake or asleep as one walks ... or gradually becoming more or less awake as time passes ?'.

  2. see also, if You must: http://kyoht.deviantart.com/art/Schrodinger-74377235 .

  3. ... cats are known to be surreal creatures of the universe.
    ... cat can be collapsed, tired & asleep, but can also open eyes.
    ... opening eyes can make cat to be aware of a certain magical reality's aspects, and end up in another world.
    ... a cat can collapse when tired enough, even if some claim that cats don't collapse.