Analysis device, analysis method, and non-transitory computer readable storage medium

An analysis method using a computer, the analysis method comprising:

• acquiring a plurality of pieces of measurement data relating to states of a plurality of mechanisms composing a production line;
• acquiring premise information for imposing constraint conditions defining whether or not a causal relationship is formed between the mechanisms;
• identifying a causal relationship between the plurality of mechanisms by statistically analyzing the plurality of pieces of acquired measurement data under the constraint conditions imposed by the premise information;
• outputting causal relationship information representing the identified causal relationship;
• accepting a revision to the causal relationship represented by the output causal relationship information;
• revising the premise information such that constraint conditions appropriate for the revised causal relationship are imposed;
• and
• storing the revised premise information.

A non-transitory computer readable storage medium storing analysis program causing to computer to execute:

• acquiring a plurality of pieces of measurement data relating to states of a plurality of mechanisms composing a production line;
• acquiring premise information for imposing constraint conditions defining whether or not a causal relationship is formed between the mechanisms;
• identifying a causal relationship between the plurality of mechanisms by statistically analyzing the plurality of pieces of acquired measurement data under the constraint conditions imposed by the premise information;
• outputting causal relationship information representing the identified causal relationship;
• accepting a revision to the causal relationship represented by the output causal relationship information;
• revising the premise information such that constraint conditions appropriate for the revised causal relationship are imposed;
• and
• storing the revised premise information.