Decision tables in depth

1. Michael Anstis Decision Tables in depth

3. Types

4. Validation & Verification

5. Transformation

6. Decision Tables in Guvnor

7. Roadmap

8. Summary

9. Q&A

11. Validation & Verification

12. Transformation

13. Decision Tables in Guvnor

14. Roadmap

15. Summary

16. Q&A

20. Transformation

21. Decision Tables in Guvnor

22. Roadmap

23. Summary

24. Q&A

26. Vertical

27. Limited entry

29. Multi-hit, all hits

30. Multi-hit, first hit

31. Single hit

42. Reduces the number of condition columns.

43. If the same actions exist for rules covering all condition states for a given condition they can be combined and the condition state becomes irrelevant.

47. Condition columns are not mutually exclusive

48. If the Condition columns are not exclusive, some combination of conditions are present in more than one column, which may lead to ambiguity or inconsistency.

51. Condition columns are not mutually exclusive.

52. If the Condition columns are not exclusive, some combination of conditions are present in more than one column, which may lead to ambiguity or inconsistency.

55. Condition columns are mutually exclusive

56. As the Condition columns are exclusive; combinations of conditions cannot be present in more than one column which eliminates ambiguity and inconsistency.

57. Classic form if Single-hit is "expanded decision table"; but this can be optimised or “contracted”.

61. Decision Tables in Guvnor

62. Roadmap

63. Summary

64. Q&A

66. Ambivalence (conflicting)

67. Deficiency

68. Mitigation

85. Types

87. Roadmap

88. Summary

89. Q&A

95. Rules 1, 2 and 3, 4 have the same action no matter what the state of “Hunger”. Therefore they can be contracted...

97. Types

98. Validation & Verification

100. Summary

101. Q&A

104. Digitised condition states (enumerated fields)

106. Condition and rule negation

107. Cell merging

108. Cell grouping

113. Each row compiles into a separate DRL rule

115. Each row compiles into a separate DRL rule

116. rule "Row 1 dtable"

117. dialect "mvel"

118. when

119. $person : Person( age < &quot;18&quot; )

120. then

121. $person.setHolidayEntitlement( 27 );

122. end

123. rule &quot;Row 2 dtable&quot;

124. dialect &quot;mvel&quot;

125. when

126. $person : Person( age >= &quot;18&quot; , age < &quot;45&quot; , lengthOfService < &quot;15&quot; )

127. then

128. $person.setHolidayEntitlement( 22 );

129. end

131. Types

132. Validation & Verification

133. Transformation

135. Q&A

138. Improved support for digitised condition states

140. Usability enhancements

142. Types

143. Validation & Verification

144. Transformation

145. Decision Tables in Guvnor

148. Provide a simple, yet powerful, visualisation of decision components

149. Allow large sets of related rules to be easily worked upon simultaneously

151. A solid foundation for the future

152. A roadmap to become the market leader

154. Types

155. Validation & Verification

156. Transformation

157. Decision Tables in Guvnor

158. Roadmap

161. Michael Anstis Decision Tables in depth