Knowledgeincorporated intelligent solving methodsare prevailing in practical planningandschedulingbecauseof the large problemsize and complexconstraints. However,when intelligent methodsare usedin real applications,it is an important problemto validatethat bothoptimalityandresponsetimeare at expert level. TuringTest approachesare useful in validating intelligent systems.Nevertheless,validationburdensexpertswith heavytasks. In distribution mutescheduling, for instance, validationloadis considerablesincepatternsof distributionspots are numerous.Abi-directional, many-sidedexplanationtyped multi-step validation method, which enables to share the validationtasks amongexperts, KEsandcomputers,is proposedto diminishthe load on busyexperts, for validating intelligent systems.