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Systems' Verification Validation and Testing (VVT) are carried out throughout systems' lifetimes. Notably, quality-cost expended on performing VVT activities and correcting system defects consumes about half of the overall engineering cost. Verification, Validation and Testing of Engineered Systems provides a comprehensive compendium of VVT activities and corresponding VVT methods for implementation throughout the entire lifecycle of an engineered system. In addition, the book strives to alleviate the fundamental testing conundrum, namely: What should be tested? How should one test? When should one test? And, when should one stop testing? In other words, how should one select a VVT strategy and how it be optimized? The book is organized in three parts: The first part provides introductory material about systems and VVT concepts. This part presents a comprehensive explanation of the role of VVT in the process of engineered systems (Chapter-1). The second part describes 40 systems' development VVT activities (Chapter-2) and 27 systems' post-development activities (Chapter-3). Corresponding to these activities, this part also describes 17 non-testing systems' VVT methods (Chapter-4) and 33 testing systems' methods (Chapter-5). The third part of the book describes ways to model systems’ quality cost, time and risk (Chapter-6), as well as ways to acquire quality data and optimize the VVT strategy in the face of funding, time and other resource limitations as well as different business objectives (Chapter-7). Finally, this part describes the methodology used to validate the quality model along with a case study describing a system’s quality improvements (Chapter-8). Fundamentally, this book is written with two categories of audience in mind. The first category is composed of VVT practitioners, including Systems, Test, Production and Maintenance engineers as well as first and second line managers. The second category is composed of students and faculties of Systems, Electrical, Aerospace, Mechanical and Industrial Engineering schools. This book may be fully covered in two to three graduate level semesters; although parts of the book may be covered in one semester. University instructors will most likely use the book to provide engineering students with knowledge about VVT, as well as to give students an introduction to formal modeling and optimization of VVT strategy. Получить ссылку |
Testing SAP R/3
A Manager’s Step-by-Step Guide
Автор: JOSE FAJARDO, ELFRIEDE DUSTIN
Год издания:
Planning, preparing, scheduling, and executing SAP test cycles is a
time-consuming and resource-intensive endeavor that requires participation
from several project members. SAP projects are prone to
have informal, ad-hoc test approaches that decrease the stability of
the production environment and tend to increase the cost of ownership
for the SAP system. Many SAP project and test managers cannot
provide answers for questions such as how many requirements have
testing coverage, the exit criteria for a test phase, the audit trails for
test results, the dependencies and correct sequence for executing test
cases, or the cost figures for a previously executed test cycle. Fortunately,
through established testing techniques predicated on guidelines
and methodologies (i.e., ASAP SAP Roadmap methodology,
IBM’s Ascendant methodology, and Deloitte’s ThreadManager
methodology), enforcement of standards, application of objective
testing criteria, test case automation, implementation of a requirements
traceability matrix (RTM), and independent testing and formation
of centralized test teams, many of the testing risks that plague
existing or initial SAP programs can be significantly reduced.
This book is written for SAP managers, SAP consultants, SAP
testers, and team leaders who are tasked with supporting, managing,
implementing, and monitoring testing activities related to test planning,
test design, test automation, test tool management, execution of
test cases, reporting of test results, test outsourcing, planning a budget
for testing activities, enforcing testing standards, and resolving
defects.
Моделирование электротехнических устройств в Matlab, SimPowerSystems и Simulink
Автор: Черных И.В.
Год издания:
В книге содержится описание прикладной программы Simulink и библиотеки блоков SimPowerSystems, предназначенной для моделирования электротехнических устройств и систем. Рассматривается методика создания моделей с помощью графического интерфейса программы, описаны методы расчета моделей, подробно освещена методика создания электротехнических блоков пользователя. Даны основные команды для управления моделью из ядра пакета MATLAB, рассмотрен механизм выполнения расчета модели, приводятся советы автора по применению программы. Книга включает в себя большое количество примеров, поясняющих работу блоков и методику создания модели.
Моделирование электротехнических устройств в MATLAB, SimPowerSystems и Simulink
Автор: Илья Викторович Черных
Год издания:
В книге содержится описание прикладной программы Simulink и библиотеки блоков SimPowerSystems, предназначенной для моделирования электротехнических устройств и систем. Рассматривается методика создания моделей с помощью графического интерфейса программы, описаны методы расчета моделей, подробно освещена методика создания электротехнических блоков пользователя. Даны основные команды для управления моделью из ядра пакета MATLAB, рассмотрен механизм выполнения расчета модели, приводятся советы автора по применению программы. Книга включает в себя большое количество примеров, поясняющих работу блоков и методику создания модели. Издание предназначено для инженеров, научных работников, аспирантов и студентов, занимающихся моделированием в области электротехники.
Nahere Beleuchtung des Nichteinigung-Systems
Автор: Karl Lippe-Wei?enfeld
Год издания:
Полный вариант заголовка: «Nahere Beleuchtung des Nichteinigung-Systems : ein Bruchstuck fur die Geschichte der Zukunft / [K. C. ZurLippe]».
Improving the process of driving a locomotive of Decision Support Systems
Автор: Oleksandr Horobchenko
Год издания:
The training system is implemented with the use of the fuzzy classifier that represents fuzzy knowledge base, the input of which receives signals about current state of the traction rolling stock and of the environment. The results of the work allow implementing intelligent DSS in modern locomotives. This will enhance the level of safety and efficiency of driving a train.
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