Statistical Design of Experiments
Statistical Design of Experiments
Orthogonal Array
Orthogonal Array
Taguchi Notation
Taguchi Notation
1
1
1
1
1
2
2
2
2
2
1
1
2
2
1
1
2
2
3
1
1
2
2
2
2
1
1
-
-
= Level 1
= Level 1
+ = Level 2
+ = Level 2
4
1
2
1
2
1
2
1
2
5
1
2
1
2
2
1
2
1
6
1
2
2
1
1
2
2
1
7
1
2
2
1
2
1
1
2
Orthogonal Array
Orthogonal Array
Traditional Notation
Traditional Notation
1
-
-
-
-
+
+
+
+
2
-
-
+
+
-
-
+
+
3
-
-
+
+
+
+
-
-
4
-
+
-
+
-
+
-
+
5
-
+
-
+
+
-
+
-
6
-
+
+
-
-
+
+
-
7
-
+
+
-
+
-
-
+
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
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