Abstract
To select skillfully a home machinery, we researched thebest decision rule by our electronic simulation program.
A flowchart of the whole simulation program is shown in Fig. 1. As input items of our program, the number of home machinery's shops, the number of times of the simulation and the various decision rules are read in the electronic computer. After the operation is practiced at the simulate block of the program as in Figs. 26, the following items are put out : the number of the selected home machinery (NN), the arithmetical mean of the values of selected home machinery (AV), the number of times of the best machinery (MAX) and the worst (MIN) selected, the mean of the shops' positions of the selected home machinery (V), etc.
The decision of what is important in the preceding items depends on the objects of selection and thoughts of selector. In this report, however, from the values of AV and MAX in these items, the following results are led. (see Tables 25)
1. In the case that only the best home machinery is searched, the best rule is ((00011111)) (by MAX) or ((00001111)) (by AV). Then, AV=6.146.20, MAX=54.256.8%.
2. In the case that the second one may be accepted, the best rule is ((00011112)). Then, AV=6.01, MAX=57.4%.
3. In the case that even the third may be accepted, the best rule is ((00011113)). Then, AV=5.92, MAX=56.7%.
4. In the case that one need be selected, the best rule is ((00111238)). Then, AV=5.44, MAX=52.4%.
