Mr.S.Ishi, Project General Manager for the software division at Toyota. He was very nice and gave us a lot of good information. He was extremely humble and likeable. It's now 1.30am so I will have to post some more on this tour later. A quick summary was that they were applying some Toyota Production System (TPS) thinking to their software cycle but otherwise it was mainly waterfall and some spiral process. In some ways the Plan Do Check Act (PDCA) seems to flow into a waterfall. One thing he said early was that "Key success = mutual understanding between a manager and an engineer". One of their struggles seemed to be with engaging management.