Introduction: The evaluation of X-ray and light field coincidence in linear accelerators as a quality control test is often performed subjectively, involving the manual marking of films and their visual inspection following the irradiation. Therefore, the present study aimed to develop an objective method for the performance of this test leading to the increased levels...

Defects in early software development products, e.g., design specifications, can have a major impact on product quality. Analytical quality assurance methods, like Software Inspections and Testing are common practices for detecting non-conformities in software products. Often, these quality assurance (QA) activities are not seen as integral part of software construction process but rather as ti...

Requirements Engineering is considered as one of the most critical phases of a software development project. Low-quality requirements are a major reason for the failure of a project. Consequently, techniques are needed that help to improve the support of stakeholders in the development of requirements models as well as in the process of deciding about the corresponding release plans. In this pa...

In 2003 a working group established on the initiative of the Centre of Information Technology of Education under the Ministry of Education and Science, has been reviewing regulations for the assessment and certification of educational software. This article analizes the main aspects of the proposed orders. It discusses general structure of quality assurance system, the procedures for the certif...

1 1 This is an updated version of the guidelines presented to the Committee for the Coordination of Statistical Activities (CCSA) at its meeting in September 2009 [CCSA, 2009]. It takes into account comments received from members of the CCSA and as well recent developments on quality. The aim of the document is to further support the work of the CCSA for enhanced quality assurance of statistica...

Models have begun to play an important role in environmental assessment and urban climate studies. Their increasing use, however, is paralleled by a growing awareness that the majority of these models have never been the subject of rigorous evaluation. Consequently there is a lack of confidence in the modelled results. The paper reports on a European initiative (COST 732) which was launched 200...

Many of the early quality models have followed a hierarchical approach in which a set of factors that affect quality are defined, with little scope for expansion. More recent models have been developed that follow a 'Define your own' approach with locally tailored factors. The aim of this study is to present a new model to software quality assurance which addresses the problems of theses approa...