An optimizing process for improvement design based on information integration method

Heikan Izumi, Manabu Sawaguchi

Research output: Contribution to journalArticlepeer-review


After products have been released to markets, from marketing competitions, not only functional improvements but also cost reductions are requested in improvement designs. But many of engineers are feeling difficulties to satisfy both of them at same time. We propose a process for improvement designs to satisfy these different kinds of features by using information integration method. Information Integration method is an evaluation way which is based on concept of Shannon's information theory. In this method, different kinds of features can be compared in a common measure called "Information". We apply this method to evaluate functions and costs in improving designs. We also propose an optimizing process for improvement design based on this method. By comparing evaluation items in this method, next target for improvement can be automatically selected without personal subjectivity. We have confirmed effectiveness of this process in a case study of electric shaver's improvement design. This study also makes up practical design processes with our previous studies "Practical Cost Reduction Methods based on TRIZ" and "Functional Improvement Methods based on Expert Engineers' Thinking Way".

Original languageEnglish
Pages (from-to)2651-2663
Number of pages13
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number803
Publication statusPublished - 2013


  • Improvement Design Process
  • Information Integration Method
  • Management Technology

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'An optimizing process for improvement design based on information integration method'. Together they form a unique fingerprint.

Cite this