Safety-critical applications such as aviation, nuclear power generation, satellite communication, required to be highly reliable as failure of these systems may cause injury or death to human beings. Apart from the safety critical systems, software has become an integral part of most complex applications. Thus it is very important to ensure that the underlying software operates correctly, properly performs its intended functions and delivers its desirable output. However, in the early stages of development, it is difficult to quantitatively assess the reliability of a software product due to, unavailability of software failure information. Despite several research studies, not a single approach has proved to be effective in measuring the reliability of a software product. In this context, this book describes an improved bottom-up approach to predict the reliability for object-oriented systems. This approach uses product metrics gathered during the design stage of software development for reliability prediction. Moreover, through experimental application and evaluation, this book shows that, the proposed approach is both practical and useful for real world software projects.
In the early phases of software development, failure information is not available to quantitatively measure reliability of a software product. This book discusses the need and various methods of quantifying the software reliability in early stages. Currently there is no consensus on approaches for reliability analysis of software owing to the challenges in data, modeling and analysis of these systems. In this book, emphasis is given for applicability of software metrics for quantification of software reliability.The book also discusses some of the previous work in this direction. In addition, techniques such as Bayesian Belief Network and expert elicitation were also discussed from the framework of software reliability prediction. This book attempts to establish a link between theory and practice of software reliability methods for any software product
This research work emphasizes on the estimation of software reliability using OO technology constructs like encapsulation, coupling, cohesion,and inheritance.Although, object oriented technology is becoming increasingly important in every aspects of real life. The research correlate reliability with complexity by minimizing or maximizing object oriented design constructs with the help of several object oriented designs. During course of research, it was found that software reliability of any object oriented design can be increased by minimizing the complexity of that design.You will find in-depth research on reliability estimation of object oriented design by minimizing complexity. To achieve the successful results,following objectives were set forth and fulfilled: •To review and critically examine the literature. •To examine the impact of errors, bugs and failures in the software under the development. •To identify the reliability factors. •To analyze OOD constructs. •To get an alternative OO design. •To develop a metric based complexity minimization approach. •To develop a perspective framework. •To develop REM & CEM. •To implement and validate the proposed metrics & models.
Component based software development is becoming quite popular in software development environment and just like object oriented metrics, component based metrics are also essential part of software environment. This study focuses on underlining the compatibility of object oriented metrics and component based metrics. The metrics for object oriented design focus on traditional and subsequent OO metrics which are focused on complexity, lines of code measurements that are applied to the class and design characteristics. These measurements permit designers to access the software early in process, making changes that will reduce complexity and improve the continuing capability of the design. Post design and development phase, the reuse and maintainability metrics help in better analysis and results. This book summarizes the various existing OO metrics, and does an evaluation of corresponding metrics, if any, for component based systems.
Object-Oriented Implementation of Numerical Methods,
This book shows how one can model a system in object orientation. It can be referenced by other students who are pursuing a Computing Course along the same lines. Its not perfect but gives You an idea of modeling from the initial stages. Its well done and enjoyable to read and helps You grasp Object Oriented Modeling at a practical level.
Software Reliability is one of the important aspects of computer software which can be taken into consideration when determining the quality of the software. Building good reliability models is one of the key problems in the field of software reliability. A good software reliability model should give good predictions of future failure behavior, compute useful quantities and be widely applicable. Software Reliability Growth Models (SRGMs) are very important for estimating and predicting software reliability. An ideal SRGM should provide consistently accurate reliability estimation and prediction across different projects. However, that there is no single such model which can obtain accurate results for different cases. Thus, combining some individual SRGMs than single model is helpful to obtain more accurate estimation and prediction. Several combinational methods of SRGMs have been used to improve the reliability estimation and prediction accuracy.
Is object oriented software complexity metrics important to a successful software development industry? And if so, how important is it, and why is object oriented software complexity metrics so important? Many readers and stakeholders often ask why object oriented software complexity metrics is important with respect to one’s measure, particularly in the software development process. Some people also want to know how object oriented software complexity metrics can impact overall quality of software, in addition to the impact object oriented software complexity metrics has on one's developments.
The main objective of this book is to present the very basic concepts, methods and techniques for modeling Object Oriented Controls and Object Oriented controls programming for Web and Desktop applications. As the application development along with problem solution involves creativity, this book exploits both to enhance the development solution skills of professional developers and students through applying Object Oriented programming principles. The basic concepts of problem solutions through Object Oriented controls are introduced gradually and are elaborated in pseudo-code prior along with diagrams. All the chapters are mainly focused on introduction to the basic concepts of Object Oriented controls designing and development.
With emphasis on practical aspects of engineering, this bestseller has gained worldwide recognition through progressive editions as the essential reliability textbook. This fifth edition retains the unique balanced mixture of reliability theory and applications, thoroughly updated with the latest industry best practices. Practical Reliability Engineering fulfils the requirements of the Certified Reliability Engineer curriculum of the American Society for Quality (ASQ). Each chapter is supported by practice questions, and a solutions manual is available to course tutors via the companion website. Enhanced coverage of mathematics of reliability, physics of failure, graphical and software methods of failure data analysis, reliability prediction and modelling, design for reliability and safety as well as management and economics of reliability programmes ensures continued relevance to all quality assurance and reliability courses. Notable additions include: New chapters on applications of Monte Carlo simulation methods and reliability demonstration methods. Software applications of statistical methods, including probability plotting and a wider use of common software tools. More detailed descriptions of reliability prediction methods. Comprehensive treatment of accelerated test data analysis and warranty data analysis. Revised and expanded end-of-chapter tutorial sections to advance students’ practical knowledge. The fifth edition will appeal to a wide range of readers from college students to seasoned engineering professionals involved in the design, development, manufacture and maintenance of reliable engineering products and systems. www.wiley.com/go/oconnor_reliability5
This book summarizes the various semantic concurrency control techniques and deadlock handling techniques for object oriented distributed systems (OODS). It demonstrates how Object oriented concepts can be used to provide better concurrency and deadlock handling. It has the following chapters: - First chapter tells about the features and requirements of OODS - Second chapter gives the exhaustive survey of existing algorithms for concurrency control and deadlock handling techniques. - Third and Fourth chapter tells proposes concurrency control techniques for OODBMS. -Fifth chapter proposes a concurrency control technique for OODS. - Sixth chapter explores deadlock handling techniques for OODS. -Seventh chapter summarizes the results. The students and researchers interested in the areas of distributed objects, concurrency control, deadlock handling may find this book useful.
Object-Oriented Programming (OOP) is gaining momentum in business environments as a more efficient and cost-efficient method of programming. Jan Harrington's book introduces using the C++ programming language and object-oriented programming to develop business application.
A self-contained, intermediate-level introduction to the structure and syntax of Common Lisp, this text is the first based on the draft ANSI standard for Common Lisp. Presents the concepts of object-oriented programming and incorporates the Common Lisp Object-Oriented Systems (CLOS) of the new ANSI standard. Includes end-of-section exercises. The end-of-chapter problems are answered at the back of the book.
Nowadays, Object-Oriented Technology (OOT) is widely appreciated in every area of computer science not only in academic atmosphere but also in commercial world. Authoring timely and efficient software only is not enough, also, but considering the upgrading, future change and maintenance of the software is becoming the inherent skills necessary for today''s development teams. Some attributes of software quality would tell if the systems can be utilized efficiently in the long run. This calls for the rational assessment and evaluation of the existing systems. Measurement of coupling in collaboration with size measures will make way to estimate the resources such as human resource, time, cost, and machine resources for maintenance and evolution of the existing OO system. In this book, altogether six coupling measures together with eleven size measures are paid focus for the evaluation of the OO systems using statistical methods. The scope of the book is intended for the project managers, the software engineers, academics, practitioners and whoever interested in the development and maintenance of object-oriented software systems.
Object oriented approach is growing very fast in various applications of the computer science. Those applications may contain a lot of entity relationships which, need to be understood by the maintainers. An approach for formally defining slices for object oriented programs is an important problem in the maintenance phase. This research proposes definitions of slices for object oriented programs. Basic relations such as Usage, Affect and Inheritance are defined, and they are extended to a family of dependence relations between entities in object oriented programs and defines slicing techniques based on these relations. Slice collection methods for specified slice criteria are given. This approach shows how the proposed slicing concepts and rules can be applied within the software maintenance process. The research also develop an object oriented system tool (O2SMt) which represent an automatically extractable and captures an object oriented software system dependencies in order to aid in maintenance phase. The O2SMt captures program slicing according to the slicing concepts, rules and definitions to feature out the dependencies with the basic object oriented relations.