Methodology/approach: The paper shows the results of a conceptual research concerning the problem of process quality evaluation. The description of the problem; using the terminology of decision sciences; allowed to analyse the multicriteria decision making (MCDM) methods and to choice the apprioprate one.
Findings: It is possible to define the problem of process quality evaluation as the multicriteria decision problem and to apply one of the MCDM methods to its solution. There was indicated that the approach based on decision rules; using rough set theory; is the most applicable tool for the process quality evaluation made in a changeable; dynamic manufacturing environment; also for the sake of the ease of use and results interpretation.
Practical implications: The final aim of the research is to give a process operator a tool to evaluate the process quality online.
Originality/value: The originality of the concept consists in defining the problem of process quality evaluation as a multicriteria decision problem and in pointing out the approach based on decision rules using a rough set theory as the appropriate method of its solution.
Keywords: Process quality evaluation; multicriteria decision making