The Software Trouble Assessment Matrix (STAM) is a tool that software developers can use to evaluate the design and effectiveness of software inspection and testing processes so that they can be improved. STAM is used to organize relationships between thre e dimensions, Kenett (1994, 1995) and Kenett and Baker (1999). Three measures are computed from the data collected in a STAM analysis: • Neg...

Research in aircraft inspection and maintenance has revealed the criticality of human inspection performance in improving aviation safety. If we are to provide the general public with a safe and reliable air transportation system, inspection must be performed effectively, efficiently and consistently. Even though it is difficult to eliminate errors completely, continuing emphasis must be placed...

Expert inspection methods provide a means of evaluating interactive systems for error throughout the design lifecycle. Experts have a wide variety of methods available to them for detecting either potential user errors or usability problems that will provoke error; however, the data on what types of errors are detected by each method is very thin. This paper, presents the results of a study int...

One of the basic assumptions in Bayesian inspection models is that we have some prior knowledge about the number of defects in a certain product or software system. The prior knowledge can be often described as a probability distribution (e.g., Poisson distribution). In the paper, we propose three conditions that should be put forth as desirable properties for a prior probability distribution o...

now a days, management and control of perishable inventories is important in many units and industrial enterprises. basically perishable inventory management and control is more complex and challenging than inventories with unlimited lifetime. hence determining the optimal inventory policies for these products is very important.  in this paper, the optimal inventory policy for perishable items ...

Norman L. Johnson University of North Carolina at Chapel Hill Samuel Kotz University of Maryland College Park Continuing previous work on effects of errors in inspection on group sampling schemes, a modification of Dorfman-Sterrett schemes is studied. The modification consists of reversion to group sampling when a specified number of decisions of nonconformance have occurred in the course of in...

An inspection is regarded by software developers as an efficient method for finding errors. Unfortunately companies do not necessarily have the power to implement inspection efficiently. Why we have started a project in order to find a suitable way to carry out inspections in four companies. This paper illustrates our plans and early experiments with two companies.

he effects of false and incomplete identification of nonconforming items on the properties of two-stage acceptance sampling procedures are studied. Numerical tables are presented, and there is some discussion of sensitivity to inspection errors. Methods of taking into account extra costs needed to implement better inspection techniques, when initial grading is inconclusive, are described. C-'> ...

the automation of visual inspection for printed labels, which are coated with rubber and curl, we have developed a camera-based portable experimental device of automatic inspection in this research. By experiments, we have verified that the experimental device surely detect the failures such as the stain, the patchiness, the spread, and the chip detected by using low dimensional feature vectors...