Wednesday, October 24, 2012
ETRIA TRIZ Future Conference, Day 1, Afternoon & Evening
“Using TRIZ to invent failures – concept and application to go beyond traditional FMEA” was presented as a combination of tutorial and methodology, introducing TRIZ professionals to the extensive formality of FMEA, then adding AFD to FMEA to generate candidate failures for mitigation.
Francesco Frillici from Florence presented the integration of OTSM TRIZ with AHP (Analytic Hierarchy Process) for choosing the “right” solution to a problem. Defying the history of both methods, he also set a requirement that the system must be easy to learn, easy to use, and not time-consuming. For orientation on AHP, see
http://colorado.edu/geography/leyk/geog_5113/readings/saaty_2008.pdf Francesco presented a case study on a removing the wires from a clothes steamer, to make it easier to use, comparing several solutions using AHP and other methods, and evaluating the results by means of comparison of experts’ opinions. AHP was not the easiest, but was the most reliable method. Audience comments suggested that Pugh selection, with the option of hybridizing options as well as selecting, might be a stronger method.
A second paper from the same group followed: “Product Architecture: evaluating the potentiality of TRIZ tools, “ presented by Lorenzo Fiorinesche. Unfortunately I don’t know enough about structured design methodology to summarize these papers—maybe after a few more years of listening I can do an intelligent commentary.
Tiziano Montecchi from U. Bergamo presented “Knowledge based approach for formulating TRIZ contradictions.” He uses OTSM vocabulary, and a very structured method to define the physical contradiction.
In the parallel session I heard part of Thomas Nagel’s presentation on “OTSM TRIZ Application for an Interoperable Pantograph” (device that conduct power from overhead cables to systems, and can do it for different dimensions in different countries.) This is a comprehensive study, originally part of a masters project from INSA in France, which included analysis of patterns of evolution, alternate technologies, and multiple problem solving options. Because of my fascination with both the technology and the TRIZ case study, I missed Daniel Scheu’s explanation of his trimming methodology, which got a lot of favorable comment, since it has both a structured theory of the order of trimming steps, and valuable practical examples.
The consensus on the buses was that this was a very long day (some people flew 17 hours from Korea, 18 hours from China…). We got a few minutes to relax at the hotels, then went to a Portuguese style dinner (vegetable soup, cod, potatoes, 2 kinds of wine, and of course fruit and multiple kinds of pastry) and a lot of good gossip. And we’ll do more tomorrow!
Pictures? ETRIA members usually post lots to their Facebook page.