Proposal for a "definition of function" method for product improvement design

Mathematics

• Design 98%
• Language 47%
• Engineering 45%
• Ontology Engineering 18%
• Business Process 15%
• Skills 10%
• Training 9%
• Teaching 9%
• Value Function 8%
• Express 8%
• Costs 6%

Business & Economics

• Value Engineering 100%
• Language 69%
• Use Value 15%
• Value Function 12%
• Ontology 12%
• Business Process 9%
• Costs 4%

Engineering & Materials Science

• Value engineering 68%
• Cost functions 8%
• Industry 8%
• Ontology 7%