Page 57 - MODULE QUALITY TOOLS DMQ 30262

DMQ 30262

scorecard updated and effective. Another shortfall with the balanced scorecard is that
it is difficult to implement. A typical scorecard may take five or six months to

implement. An additional number of months may be needed to fine-tune the structure.
Total development time is often one year or longer (McKenzie, 1998).

Measures may be difficult to quantify and the approach can lead to too many
performance measures.

4.3 WHY-WHY DIAGRAM

The Why-Why diagram helps to identify the root causes of a problem. It helps a
group recognize the broad network of problem causes and their relationship.

Besides that it also can indicate the best areas to address for short term and long
term solutions and it is very easy to use.

A Why-Why Diagram is a Tree Diagram where each child statement is determined
simply by asking 'why' the parent occurs, as shown in Figure 4.7. Thus, it is very

similar in use to a Cause-Effect Diagram and the technique may be borrowed from
Cause-Effect Diagram usage. Its simplicity could make it very useful in less formal
situations. The Why-Why and How-How Diagrams together provide a very simple

toolset for finding causes of and solutions to problems.

Why-Why diagram works by repeatedly asking the same question towards a problem,
by breaking down the causes or solutions into more and more explicit elements. At
each stage, there can be multiple answers to the ‘Why’ questions, which will results

in a hierarchical tree-structure.

Making this tree visible gives several advantages:

 It allows a group of people to share the mental model of the situation and hence

work more harmoniously on it.
 It allows re-examination of parts of the analysis, so you can change, remove or

add to it at any time. This supports the non-linear way in which we tend to think.
 It allows one to consciously not to follow some paths, digging only into the most
likely areas.

KKTM Kuantan 56 DMQ 30262