Using the Architecture Tradeoff Analysis Method[superscript SM] to evaluate a reference architecture: A case study (Technical note / Carnegie Mellon. Software Engineering Institute) Review
Saturday, January 22, 2011
Thursday, January 20, 2011
A study on hazard analysis in high integrity software standards and guidelines
A study on hazard analysis in high integrity software standards and guidelines Review
A study on hazard analysis in high integrity software standards and guidelines Feature
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Sunday, August 15, 2010
MCSD Analyzing Requirements and Defining .NET Solutions Architectures Study Guide (Exam 70-300 (Certification Press)
MCSD Analyzing Requirements and Defining .NET Solutions Architectures Study Guide (Exam 70-300 (Certification Press) Review
MCSD Analyzing Requirements and Defining .NET Solutions Architectures Study Guide (Exam 70-300 (Certification Press) Feature
The only classroom-based training and self-assessment system! This study guide provides 100% complete coverage of all objectives for exam 70-310. Based on 300,000+ hours of IT training experience, the book contains hundreds of practice exam questions and hands-on exercises. The CD-ROM features full practice exam software with interactive tutorials and lab simulations, plus an adaptive test engine.
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Wednesday, April 14, 2010
Assessment of surface water quality using multivariate statistical techniques: A case study of the Fuji river basin, Japan [An article from: Environmental Modelling and Software]
Assessment of surface water quality using multivariate statistical techniques: A case study of the Fuji river basin, Japan [An article from: Environmental Modelling and Software] Review
Assessment of surface water quality using multivariate statistical techniques: A case study of the Fuji river basin, Japan [An article from: Environmental Modelling and Software] Feature
This digital document is a journal article from Environmental Modelling and Software, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Multivariate statistical techniques, such as cluster analysis (CA), principal component analysis (PCA), factor analysis (FA) and discriminant analysis (DA), were applied for the evaluation of temporal/spatial variations and the interpretation of a large complex water quality data set of the Fuji river basin, generated during 8 years (1995-2002) monitoring of 12 parameters at 13 different sites (14@?976 observations). Hierarchical cluster analysis grouped 13 sampling sites into three clusters, i.e., relatively less polluted (LP), medium polluted (MP) and highly polluted (HP) sites, based on the similarity of water quality characteristics. Factor analysis/principal component analysis, applied to the data sets of the three different groups obtained from cluster analysis, resulted in five, five and three latent factors explaining 73.18, 77.61 and 65.39% of the total variance in water quality data sets of LP, MP and HP areas, respectively. The varifactors obtained from factor analysis indicate that the parameters responsible for water quality variations are mainly related to discharge and temperature (natural), organic pollution (point source: domestic wastewater) in relatively less polluted areas; organic pollution (point source: domestic wastewater) and nutrients (non-point sources: agriculture and orchard plantations) in medium polluted areas; and organic pollution and nutrients (point sources: domestic wastewater, wastewater treatment plants and industries) in highly polluted areas in the basin. Discriminant analysis gave the best results for both spatial and temporal analysis. It provided an important data reduction as it uses only six parameters (discharge, temperature, dissolved oxygen, biochemical oxygen demand, electrical conductivity and nitrate nitrogen), affording more than 85% correct assignations in temporal analysis, and seven parameters (discharge, temperature, biochemical oxygen demand, pH, electrical conductivity, nitrate nitrogen and ammonical nitrogen), affording more than 81% correct assignations in spatial analysis, of three different sampling sites of the basin. Therefore, DA allowed a reduction in the dimensionality of the large data set, delineating a few indicator parameters responsible for large variations in water quality. Thus, this study illustrates the usefulness of multivariate statistical techniques for analysis and interpretation of complex data sets, and in water quality assessment, identification of pollution sources/factors and understanding temporal/spatial variations in water quality for effective river water quality management.
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Monday, March 1, 2010
Software Testing Practice: Test Management: A Study Guide for the Certified Tester Exam Istqb Advanced Level
Software Testing Practice: Test Management: A Study Guide for the Certified Tester Exam Istqb Advanced Level Review
Software Testing Practice: Test Management: A Study Guide for the Certified Tester Exam Istqb Advanced Level Feature
Aimed at experts who are dedicated to software testing, The Software Testing Process: Test Management addresses the major issues related to advanced, state-of-the-art test management. This book covers the syllabus required to pass the Certified Tester Examination - Advanced Level as defined by the International Software Testing Qualifications Board (ISTQB).
Software developers, project managers, quality managers, and team leaders will benefit from the comprehensive coverage of risk oriented management and the way testing is shown to be an integral, though independent part of software development.
Included are best practices in the field of testing, as well as detailed descriptions of involved tasks, roles, and responsibilities. Well suited for self-study, the reader is "taken by the hand" and guided through the key concepts and terminology of software testing in a variety of scenarios and case studies (as featured in the first book in this series, Software Testing Foundations).
Not only will testers and test managers find this a must-read, but anyone requiring advanced professional knowledge and skills in this field, anyone wanting to become a true testing professional, will find this book a must for a successful, well-founded education in advanced test management.
Topics include:
Test process and test tools Testing in the software life cycle Test policy and test manual Test plan and test planning Test control Incident management Risk management/risk-based testing Staff qualifications Test metrics