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6.3 Printer-QFD

The TRIZ model describes perceived ideality of the product for customers within a specific market segment. We can apply TRIZ and find ideas, which will improve product functions - we can find ideas, which help customers meeting their objectives better - and we can develop ideas, which focus on value creation for this customer. The three columns (Figure 4) will be used as 'voice of the customer' in the following QFD-examples - just to make things simple.

6.3.1 QFD focused on Product Functions

The A1-matrix can look like Table 4 (4).

Table 4: QFD focused on Product Functions

A1	Printer speed	Ozone level	Noise-level	Other Characteristics	Customer's Importance Rating
Fast, high quality printout					5
Low ozone emission					3
Lower noise level					4
Weighted importance:	58	27	36		4

This matrix reflects the customer demand (rows), relevant measurement characteristics (columns), global interaction between these (symbols) and relevance to the customer. The weighted importance (bottom) can help the development team to spend their development resources in a way, which will guarantee meeting relevant customer objectives.

Table 5: Directions to improve the Printer Function

Table 5 lists directions to improve the printer functions for this market segment - they are mainly design related. Examples are: 1) a pretty printer, which prints unstructured source code in a nice format; or 2) a green printer, which no longer emits ozone or 3) a whispering printer.

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