Evaluation of perceived image quality in color prints is a complex task, due to its subjectivity and dimensionality. Perceived image quality is influenced by a number of quality attributes. Evaluation of all attributes influence, and their influence on other attributes, is is a difficult and complex task. Because of this the most important attributes should be identified in order to achieve a m...

Flight Operations Quality Assurance (FOQA)-derived data was used to develop parsimonious model(s) for fuel consumption on a Boeing 757 airplane using regression analysis. Using the model(s), it should be possible to identify outliers (specific flights) with respect to fuel consumption, which will enable the air carrier to investigate the cause of excessive fuel consumption and remedy the proble...

The use of tools in data and information quality diagnosis and improvement projects is desirable to automate clerical tasks and in some cases it is mandatory to be effective. In this work we present a toolkit that we developed in the context of the NEAT methodology, that provides a systematic way of assessing Data Quality. The novelty of the proposal is given by the construction of many indepen...

Research has recognized the importance of analyzing information quality (IQ) for many diierent applications: The success of data integration greatly depends on the quality of the individual data. In statistical applications poor data quality often leads to wrong conclusions. High information quality is literally a vital property of hospital information systems. Poor data quality of stock price ...

Since these effects are of importance for sound quality engineering, in a global market it is of vital interest, whether there exist cross-cultural differences. Therefore, a basic study was performed both in Germany and Japan, using the method of semantic differential. Two sets of experiments were performed: in one experiment, subjects imagined the colours and rated them from their memory. In t...

The development of Web Applications has some special characteristics, such as very short Time-to-Market, parallel development and requirements that are not prioritized. This makes it hard to address quality attributes in a systematic way, to prioritize requirements and to resolve conflicts between them. The use of trade-off methods such as QFD will help to prioritize the “right” requirements an...