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@@ -105,3 +105,38 @@ Syntactic sugar: as `(foo)` happens often, to denote unary selector,
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it can be written equivalently as `~foo`, to improve readability.
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So above Axes' parseable string representation
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would likely be written `'~value'` and `'~todos 1 done'` instead.
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+
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+Axxord
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+----
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+
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+Axxord is a blackboard-like system using `Axon` and friends to observe
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+the object of interest, using axes as an aspect, and coming with a few helpers
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+included.
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+
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+You create the model you want to observe as plain Smalltalk object
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+(wrapped JavaScript object should work, too). Then create an axon:
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+`axon := SimpleAxon new` and assign it to the object of interest:
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+`model axxord: axon`.
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+
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+The clients of the model should access it via the axxord extension methods
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+`axes:consume:` and `axes:transform:`. To read an aspect and enact on
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+the result, use `model axes: #((value)) consume: [:counter | ...]`; to change
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+the aspect, use `model axes: #((todos) 1 done) transform: [:done | done not]`.
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+The latter automatically informs the axon after the change is made.
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+
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+There are convenience methods to create the axes-related interests.
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+To create an interest on an aspect only, but not its sub-contents,
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+use `Axes newInterestUpTo: #(left (amount)) doing: [...]`. This would react to
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+`axon changed: #(left)` as well as `axon changed: #(left (amount))`,
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+but not to `axon changed :#(left (amount) (description))`. On the contrary,
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+an interest created by `Axes newInterestThru: #(left (amount)) doing: [...]`
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+would react to `axon changed :#(left (amount) (description))` as well,
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+but none of them would react to unrelated `axon changed: #(left (name))`;
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+as shown in the following table
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+
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+| `axon changed:` | `newInterestUpTo: #(left (amount))` | `newInterestThru: #(left (amount))` |
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+|--------|--------|----------|
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+| `#(left)` | enacts | enacts |
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+| `#(left (amount))` | enacts | enacts |
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+| `#(left (amount) (desc))` | passes | enacts |
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+| `#(left (name))` | passes | passes |
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