Thank you for the elaboration!
(And for anyone else reading this thread I found an old message along the same topic: http://lists.squeakfoundation.org/pipermail/squeak-dev/1998-...)
I'm thinking along these lines now: decompose systems along lines of 'meaning', not data structures (data structures add zero meaning and are a kind of 'premature materialization'), design messages first, late bind everything so you have the most options available for implementation details, etc.
The other thing I'm thinking is why have only one way to implement the internal process of an object/process? There are often multiple ways to accomplish goals, so allow multiple alternative strategies for responding to the same message and let objects choose one eventually.
Edit: wanted to add that IIUC, 'messages' doesn't imply an implementation strategy - i.e. they are messages in the world of 'meaning'. In the world of implementation, they may just disappear (inlined/fused) or not (physical messages across a network), depending on how the objects have materialize at a specific point in time.
(And for anyone else reading this thread I found an old message along the same topic: http://lists.squeakfoundation.org/pipermail/squeak-dev/1998-...)
I'm thinking along these lines now: decompose systems along lines of 'meaning', not data structures (data structures add zero meaning and are a kind of 'premature materialization'), design messages first, late bind everything so you have the most options available for implementation details, etc.
The other thing I'm thinking is why have only one way to implement the internal process of an object/process? There are often multiple ways to accomplish goals, so allow multiple alternative strategies for responding to the same message and let objects choose one eventually.
Edit: wanted to add that IIUC, 'messages' doesn't imply an implementation strategy - i.e. they are messages in the world of 'meaning'. In the world of implementation, they may just disappear (inlined/fused) or not (physical messages across a network), depending on how the objects have materialize at a specific point in time.