CAST Ch 9 Flashcards

1
Q

Calibration

A

This indicates the movement of a measure so it becomes more valid, for example, changing a customer survey so it better reflects the true opinions of the customer.

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2
Q

Cause and Effect Diagrams

A

A cause and effect diagram visualizes results of brainstorming and affinity grouping through major causes of a significant process problem.

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3
Q

Check Sheets

A

A check sheet is a technique or tool to record the number of occurrences over a specified interval of time; a data sample to determine the frequency of an event.

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4
Q

Control Charts

A

A statistical technique to assess, monitor and maintain the stability of a process. The objective is to monitor a continuous repeatable process and the process variation from specifications. The intent of a control chart is to monitor the variation of a statistically stable process where activities are repetitive.

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5
Q

Ease of Use and Simplicity

A

These are functions of how easy it is to capture and use the measurement data.

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6
Q

Histogram

A

A graphical description of individually measured values in a data set that is organized according to the frequency or relative frequency of occurrence. A histogram illustrates the shape of the distribution of individual values in a data set along with information regarding the average and variation.

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7
Q

Measures

A

A unit to determine the dimensions, quantity, or capacity (e.g., lines of code are a measure of software size).

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8
Q

Metric

A

A software metric is a mathematical number that shows a relationship between two measures.

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9
Q

Objective Measures

A

An objective measure is a measure that can be obtained by counting.

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10
Q

Pareto Charts

A

A special type of bar chart to view the causes of a problem in order of severity: largest to smallest based on the 80/20 premise.

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11
Q

Reliability

A

This refers to the consistency of measurement. Two different individuals take the same measurement and get the same result. The measure is reliable.

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12
Q

Run Chart

A

A run chart is a graph of data (observation) in chronological order displaying shifts or trends in the central tendency (average). The data represents measures, counts or percentages of outputs from a process (products or services).

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13
Q

Subjective Measures

A

A person’s perception of a product or activity.

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14
Q

Timeliness

A

This refers to whether the data was reported in sufficient time to impact the decisions needed to manage effectively

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15
Q

Validity

A

This indicates the degree to which a measure actually measures what it was intended to measure.

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