introduction dosimetric accuracy is a major issue in the quality assurance (qa) program for treatment planning systems (tps). an important contribution to this process has been a proper dosimetry method to guarantee the accuracy of delivered dose to the tumor. in brachytherapy (bt) of gynecological (gyn) cancer it is usual to insert a combination of tandem and ovoid applicators with a complicat...

background: health system pharmacies, like other health care professional, practice under a number of mandated stan­dards. basic concepts of quality assurance (qa) standards should be applied to hospital pharmacy practice. the survey re­ported here is to assess qa system implementation and its standard indicators observation in tehran university of medical sci­ences (tums) hospitals' pharmacies...

1 This work is supported by the National Science Foundation through ITR program grant No CCR 0296082, and by NASA through a grant from the NASA Office of Safety and Mission Assurance (OSMA) Software Assurance Research Program (SARP) managed through the NASA Independent Verification and Validation (IV&V) Facility, Fairmont, West Virginia. 2 Correspondence author. E-mail: [email protected] Abstract

The purpose of assurance activities is to reduce risk, thereby ensuring requirements. However, assurance activities incur costs such as budget, schedule, mass ( e g , radiation shielding), etc. The selection of assurance activities to perform is thus an assurance optimization problem. For example, for a given budget, selection of the set of assurance activities that will minimize risk (i.e., ma...

Pairwise testing has become a popular approach to software quality assurance because it often provides effective error detection at low cost. However, pairwise (2-way) coverage is not sufficient for assurance of mission-critical software. Combinatorial testing beyond pairwise is rarely used because good algorithms have not been available for complex combinations such as 3­ way, 4-way, or more. ...

To improve the security of software systems, we need to improve the software development processes used to produce them. Software security assurance cases have been proposed as a way of establishing security properties of software at different phases of the software development lifecycle; however, these assurance cases are difficult to write, communicate and introduce into an already burdened s...

Heterogeneous reconfigurable architectures are being used for video encoding applications. During early stages of the design flow, performance estimation due to parallel execution of video encoding applications on heterogeneous platforms is a critical requirement. In this article, we formulate the performance of parallel execution of H.264 video encoding application on a heterogeneous reconfigu...