
444 Part III n Information Quality Applied to Core Business Value Circles
Determining Information Store or Process to Assess (TIQM P2.4)
In the case of gathering Customer Requirements and Expectation Information, the
Information Store will be the collected Customer Verbatims or VOC statements.
Identifying Accuracy Verification Sources (TIQM P2.5)
See Chapter 5, “The Step-by-Step Guide to Assessing Information Quality,” Step P2.5
for how to identify the correct sources to verify the Accuracy of the Information.
This is the most critical inherent Quality Characteristic for any information. The
verification source of the VOC Verbatims is the individual Customer participants.
Extracting Statistically Valid Sample of Data (TIQM P2.6)
Because you will have a relatively small sample of Customers involved in the
QFD initiative, you will want to use all Information gathered from all Customer
participants, a 100 percent sample of the total population of QFD participants.
The Critical Success Factor is for you to select a Statistical random Sample.
Measuring Information Quality (Accuracy) of Customer Requirements
Information (TIQM P2.7)
To measure VOC Accuracy, you can ask the Customer to confirm the importance
with which they rate given Attributes individually. The process of verification
of understanding a declarative requirement statement is simple. Ask, “What
do you mean by … ?” Look out for ...