Thus, in order to overcome such limited usage of RCA, a proposal was initially done in 2006, in order to overcome the above mentioned limitations:
(1) adding a control measure at the end of each ‘cause bone’ can help decision-makers in their determination of corrective/improvement actions to take in terms of how much to introduce into the related action plan in the way of resources. The ISO 15939 Measurement Information Model can be the appropriate technique to help derive such measures, as it overcomes the intrinsic limitations of Orthogonal Defect Classification (ODC) by providing direct process improvement at CMMI ML2 on Measurement & Analysis (ME) and at ML3 on Organizational Process Focus (OPF), in particular taking care of the specific practice SP1.4 concerning the establishment of the organization’s measurement repository), as well as on the General Practice GP2.8 (Monitor & Control the Process) across all the process areas involved in each single cause-effect analysis.
(2) using an alternative way to express Ishikawa diagrams by Mind Maps, and how Mind Maps can facilitate the diffusion of RCA and its quantitative variant (Q-RCA) into organizations, and subsequently be used by organizations.