نتایج جستجو برای: np chart
تعداد نتایج: 67126 فیلتر نتایج به سال:
Control chart techniques have been widely used in industries to monitor a process in quality improvement. Whenever we deal with variables data, we usually employ a combination of X-bar chart and R chart (or S chart) to monitor both the center and the spread of the process. In this paper, we propose a simple alternative, that is, we design a single chart to monitor both the center and the spread...
abstract. in recent years several studies have shown that control charts with adaptive schemes or double sampling plans detect both small and moderate shifts in the process mean more quickly than the traditional shewhart chart. in the classical double sampling chart, the difference between two points were placed in the central region of first stage was not considered. in this study, a new co...
Scenario based speci cations such as message sequence charts MSC o er an intuitive and visual way of describing design require ments Such speci cations focus on message exchanges among communi cating entities in distributed software systems Structured speci cations such as MSC graphs and Hierarchical MSC graphs HMSC allow con venient expression of multiple scenarios and can be viewed as an earl...
Scenario-based specifications such as message sequence charts (MSC) offer an intuitive and visual way to describe design requirements. MSC-graphs allow convenient expression of multiple scenarios, and can be viewed as an early model of the system that can be subjected to a variety of analyses. Problems such as LTL model checking are undecidable for MSC-graphs in general, but are known to be dec...
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