Defining conditions as problematic

We concluded that within Toyota Production System-managed organizations three sets of conditions are considered problematic and prompt problem-solving efforts. These are summarized here and are discussed more fully in a separate paper titled "Pursuing the IDEAL: Conditions that Prompt Problem Solving in Toyota Production System-Managed Organizations."

Failure to meet a customer need

It was typically recognized as a problem if someone was unable to provide the good, service, or information needed by an immediate or external customer.

Failure to do work as designed

Even if someone was able to meet the need of his or her customers without fail (agreed upon mix, volume, and timing of goods and services), it was typically recognized as a problem if a person was unable to do his or her own individual work or convey requests (i.e., "Please send me this good or service that I need to do my work.") and responses (i.e., "Here is the good or service that you requested, in the quantity you requested.").

Failure to do work in an IDEAL fashion

Even if someone could meet customer needs and do his or her work as designed, it was typically recognized as a problem if that person's work was not IDEAL. IDEAL production and delivery is that which is defect-free, done on demand, in batches of one, immediate, without waste, and in an environment that is physically, emotionally, and professionally safe. The improvement activities detailed in the cases that follow, the reader will see, were motivated not so much by a failure to meet customer needs or do work as designed. Rather, they were motivated by costs that were too high (i.e., Taiheiyo robotic welding operation), batch sizes that were too great (i.e., the TSSC improvement activity evaluated by Mr. Ohba), lead-times that were too long, processes that were defect-causing (i.e., NHK cold-forming process), and by compromises to safety (i.e., Taiheiyo).

Recap

Our field research suggests that Toyota and those of its suppliers that are especially adroit at the Toyota Production System make a deliberate effort to develop the problem-solving skills of workers—even those engaged in the most routine production and delivery. We saw evidence of this in the Taiheiyo, NHK, and Aisin quality circle examples.

Forums are created in which problem solving can be learned in a learn-by-doing fashion. This point was evident in the quality circle examples. It was also evident to us in the role played by Aisin's Operations Management Consulting Division (OMCD), Toyota's OMCD unit in Japan, and Toyota's Toyota Supplier Support Center (TSSC) in North America. All of these organizations support the improvement efforts of the companies' factories and those of the companies' suppliers. In doing so, these organizations give operating managers opportunities to hone their problem-solving and teaching skills, relieved temporarily of day to day responsibility for managing, production and delivery of goods and services to external customers.

Learning occurs with the guidance of a capable teacher. This was evident in that each of the quality circles had a specific group leader who acted as coach for the quality circle's team leader. We also saw how Mr. Seto at NHK defined his role as, in part, as developing the problem-solving and teaching skills of the team leader whom he supervised.

Problem solving occurs as bona fide experiments. We saw this evident in the experience of the quality circles who learned to organize their efforts as bona fide experiments rather than as ad hoc attempts to find a feasible, sufficient solution. The documentation prepared by the senior team at Aisin is organized precisely to capture improvement ideas as refutable hypotheses.

Broadly dispersed scientific problem solving as a dynamic capability

Problem solving, as illustrated in this paper, is a classic example of a dynamic capability highlighted in the "resource-based" view of the firm literature.

Scientific problem solving—as a broadly dispersed skill—is time consuming to develop and difficult to imitate. Emulation would require a similar investment in time, and, more importantly, in managerial resources available to teach, coach, assist, and direct. For organizations currently operating with a more traditional command and control approach, allocating such managerial resources would require more than a reallocation of time across a differing set of priorities. It would also require an adjustment of values and the processes through which those processes are expressed. Christensen would argue that existing organizations are particularly handicapped in making such adjustments.