he paper discuss the role of quality metrics to predict the quality of data warehouse conceptual models in terms of understandability. Also a new quality metric is proposed and its significance discussed in predicting quality of conceptual models. Keywords-Conceptual Model, Quality metrics, Data warehouse, Understandability, Quality evaluation.

background & aim : quality of life refers to satisfaction or dissatisfaction with various important life domains. sleep disorder is one of the factors which can influence the quality of life. this study has been conducted in order to investigate the relation between quality of life and sleep quality in the kurdish elderly of saqqez county. methods & materials: this correlational study was condu...

Data quality affects decision quality. In any forecasting and estimation model, the quality of the forecast data or the estimated data needs to be evaluated before using for decision-making. In two-level supply chain model, the retailer collects the sales information and use it to forecast the future demands over the lead-time, and the manufacturer collects the information about retailer's orde...

Previous research on the skills needed by data quality professionals have focused on Information Systems (IS) curriculum standards, survey input from Information Quality (IQ) professionals, and the training required by related disciplines such as database and quality management. In this paper, Internet-posted job descriptions for the position of data quality analysts are examined. The purpose o...

Wixom and Todd (2005) integrated the user satisfaction and the technology acceptance literatures to theorize about and account for the influence of the information technology artifact on usage. Based on Wixom and Todd’s integrated model of technology usage, we propose the 3Q model by investigating the role of service quality (SQ), in addition to system quality (SysQ) and information quality (IQ...

This paper is devoted to image quality problem. We analyze advantages and disadvantages of existing methods. Classification of quality metrics into some groups has been done. Based on this classification, we formed proposition about prospects of using this methods in solving image quality problem.

Abstract. When we describe the shape of certain entities, like a vase or a river, we refer to their qualities in different ways. A river has usually a definite length, but its width varies with the distance from the source, typically getting higher towards the end. Similarly, a vase has a definite height, but its width may vary, reflecting a certain pattern that often marks a particular style. ...

For the visual system, luminance contrast is a fundamental property of images, and is one of the main inputs of any simulation of visual processing. Many models intended to evaluate visual properties such as image discriminability compute perceived contrast by using contrast sensitivity functions derived from studies of human spatial vision. Such use is of questionable validity even for such ap...

The experience of how GDPH develop information product maps for birth certificate and death certificate processes is presented. Significant information quality issues specific to vital records are also illustrated.