Soar Tutorial - the Cognitive Systems Group

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You will then be prompted for the attribute name. Type in “jug”.
This will add the jug structure to the Datamap. You can now right click on the jug structure, and select
“Add Integer …” to add the contents attribute to the jug structure. Type in the name, and then repeat this
for the empty and volume attributes. If the attribute had values that were different possible symbols, you
would use the “Add Enumeration …” selection. Your screen should now look like this:
Now have VisualSoar check all productions against the Datamap (using the command under the
Datamap tab in the toolbar), you should have no errors. Make sure to save and feel free to close the
Datamap and initialize-water-jug windows.
In the above rule, the variable is used to connect the first condition to the second. To simplify the
writing and reading of rules, Soar allows you to combine conditions that are linked by variables. To do
this, you can just string together attributes, replacing the intermediate variables with a period, “.”, to
separate the attributes. In Soar, we call this “dot” or “path” notation. Below is the same rule as before
using dot notation.
sp {water­jug*apply*initialize­water­jug . replaces
(state ^operator.name initialize­water­jug)
­­>
( ^name water­jug
^jug
^jug )
( ^volume 5
^contents 0)
( ^volume 3
^contents 0)}
Soar Tutorial
The folder “jug”
has been added to
the Datamap.