Definition#

Abstraction tables are tables that allow for a efficient definition of rules, if they follow a certain pattern. Each line in the table represents one rule and the first cells define the conditions (connected by and), the last cell defines the action.
All rules in the table have to use a sub set of the terminology objects provided in the header of the table.

Syntax and Semantic#

An abstraction table is defined inside the default markup AbstractionTable. The table itself uses the common wiki table markup.

Example:

%%AbstractionTable

|| Question1 || Question2 || Question3
|            |    <= 5    |   Answer1
|   Answer1  |   ]5 15]   |   Answer2
|   Answer2  |  ]15 25]   |   Answer3

%

If all questions and answers are well defined (Question2 is a numerical question...), then the following rules are created internally:

IF Question2 <= 5
THEN Question3 = Answer1

IF Question1 = Answer1 AND Question2 > 5 AND Question2 <= 15
THEN Question3 = Answer2

IF Question1 = Answer2 AND Question2 > 15 AND Question2 <= 25
THEN Question3 = Answer3 

It is also possible to use solutions:

Example:

%%AbstractionTable

|| Solution1  || Question1 || Solution2
| established |     0      |   P3
|  excluded   |   > 0      |   N7

%

If again everything is well defined, we internally get rules equal to the following:

IF Solution1 = established AND Question1 = 0
THEN Solution2 (P3) // adds score P3 to Solution2

IF Solution1 = excluded AND Question1 > 0
THEN Solution2 (N7) // adds score N7 to Solution2

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This page (revision-8) was last changed on 30-Jan-2013 10:58 by Albrecht Striffler