House of Quality - correlation matrix

This house of quality sample illustrates correlation matrix.
It was designed on the base of the figure 3-5 in Lecture "How QFD helps in product quality improvement?" from the website of National Programme on Technology Enhanced Learning (NPTEL), India. [nptel.ac.in/ courses/ 110101010/ downloads/ mod3/ Module%20 III-Lec1.pdf]
Distributed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) [creativecommons.org/ licenses/ by-sa/ 4.0/ ]
"After drafting the relationship matrix, it is evaluated for any empty row or column. An empty row indicates that a customer voice is not being addressed by any technical descriptors. Thus, the customer expectation is not being met. Any blank column indicates that the technical requirement is unnecessary, as it does not address any VOC.
The roof of the house of quality, expressed as correlation matrix, is used to identify any interrelationships between the technical descriptors (Figure 3-5). Symbols are used to describe the strength of the interrelationships. Symbols generally preferred are:
- A ‘solid circle’ represents a strong positive relationship.
- A ‘circle’ represents a positive relationship.
- An ‘X’ represents a negative relationship.
- An ‘asterisk’ represents a strong negative relationship." [nptel.ac.in/ courses/ 110101010/ modules/ module3/ lec1/ 1.7.html]
The HOQ example "House of Quality - correlation matrix" was designed using ConceptDraw PRO software extended with House of Quality solution from Quality area of ConceptDraw PRO Solution Park.

The vector stencils library Involvement matrix contains 20 templates and symbols for drawing the involvement matrices using the ConceptDraw PRO diagramming and vector drawing software. The involvement matrix is one of the Seven Management and Planning Tools (7 MP tools, Seven New Quality Tools).
"Matrix Diagram ... shows the relationship between items. At each intersection a relationship is either absent or present. It then gives information about the relationship, such as its strength, the roles played by various individuals or measurements. Six differently shaped matrices are possible: L, T, Y, X, C, R and roof-shaped, depending on how many groups must be compared." [Seven Management and Planning Tools. Wikipedia]
Use it to show what people and groups are involved in actions, and what their role is in every action.
The example "Design elements - Involvement matrix" is included in the solution "Seven Management and Planning Tools" from the Management area of ConceptDraw Solution Park.

This customer types matrix diagram distribute customers into four categories depending of two criteria: 1) desired degree of proximity between customers and suppliers, and 2) types of relations that expect customers.
One time customers have short-term relations with suppliers and characterized by distance in relations with them.
Loyal customers have long-term relations with suppliers and characterized by distance in relations with them.
Customers who exploit relationships have short-term relations with suppliers and characterized by proximity in relations with them.
Relationship seekers have long-term relations with suppliers and characterized by proximity in relations with them.
This customer types matrix diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Matrices solution from the Marketing area of ConceptDraw Solution Park.