Flashcards in CAST Ch 9 Deck (15):
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.
Cause and Effect Diagrams
A cause and effect diagram visualizes results of brainstorming and affinity grouping through major causes of a significant process problem.
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.
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.
Ease of Use and Simplicity
These are functions of how easy it is to capture and use the measurement data.
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.
A unit to determine the dimensions, quantity, or capacity (e.g., lines of code are a measure of software size).
A software metric is a mathematical number that shows a relationship between two measures.
An objective measure is a measure that can be obtained by counting.
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.
This refers to the consistency of measurement. Two different individuals take the same measurement and get the same result. The measure is reliable.
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).
A person’s perception of a product or activity.
This refers to whether the data was reported in sufficient time to impact the decisions needed to manage effectively