Though variable control charts i.e., x̄ – and R -charts are powerful tools for the diagnosis of quality problems, they do have certain limitations. The limitations of x̄ – and R-charts are as follows: x̄ and...
Author - Nandhini Sathish
Accuracy Vs. Precision ✔ The accuracy of a data set or a measuring instrument refers to the degree of uniformity of the observations around a desired value such that, on average, the target value is realized. ✔ The precision...
GrAPHICAL REPRESENTATION OF A FREQUENCY DISTRIBUTION ✔ A convenient way of representing a sample frequency distribution is by means of graphs. ✔ It gives to the eyes the general run of the observations. It makes the raw data...
FMEA ProcedURE The basic steps for implementation of a FMEA are outlined below. 1.Describe the product/process and its function. 2. Create a block diagram of the product/process: The block diagram shows the logical...
WHAT IS FMEA? ✓ Failure Mode and Effect Analysis (FMEA), also known as risk analysis, is a preventive measure to systematically display the causes, effects, and possible actions regarding observed failures. ✓ The objective...
The organisations adapt the benchmarking steps to best fit their own needs and culture. Table 1 compares AT&T’s 12 step-process and Xerox’s 10-step process. Table 1. Approaches to benchmarking AT &...
TyPes OF BENCHMARKING The benchmarking can be classified into two categories: Based on the object to be benchmarked, and Based on the organisations against whom one is benchmarking. Classification Based on the Object to be...
✔ The word ‘benchmark’ is a reference or measurement standard used for comparison. Benchmarking is the process of determining who is the very best, who sets the standard, and what that standard is. ✔ Benchmarks and...
Benchmarking Process There are many versions of benchmarking steps used by very successful organisations. The AT & T company has 12 steps, Xerox uses 10 , Alwa has 6 , and others recommend 7 or 8 steps. Thus organisations...
Control Chart What is it? ✓ A control chart, invented by Walter A. Shewart, is the most widely used tool in statistical process control (SPC). ✓ The control chart is a graph that displays data taken over time and the...
