Kamis, 18 Desember 2008

Quality assurance

Universal sequence of steps
The following steps can accomplish control of quality, or anything else for that matter:9
1 Determine the subject of control, i.e. what is to be regulated.
2 Define a unit of measure, i.e. express the control subject in measurable terms such
as quantities, ratios, indices, rating, etc.
3 Establish a standard level of performance, i.e. a target to aim for.
4 Produce plans for controls that specify the means by which the characteristics will
be achieved, and variation detected and removed.
5 Organize resources to implement the plans for quality control.
6 Select a sensor to sense variance from specification.
7 Install the sensor at the stage in the process appropriate whether you need to control
before, during or after results are produced.
8 Collect and transmit data to a place for analysis.
9 Verify the results and establish whether the variance is within the range expected
for a stable process (the status quo).
10 Diagnose the cause of any variance beyond the expected range.
11 Propose remedies and decide on the action needed to restore the status quo.
12 Take the agreed action and check that process stability has been restored


This leads us to ask four key questions:
1 Are we doing it right?
2 Can we keep on doing it right?
3 Are we doing it in the best way?
4 Is it the right thing to do?

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