Implementing Production Quality Client Server Systems

Explains some of the more important developments happening in this field and does so in a manner that even the newest practitioner can understand. Ties together all the diverse elements of client/server (C/S) computing. Discusses which applications can be downsized and how to go about it. Describes numerous software products available for implementing C/S architecture including front-end tools, back-end servers, networking software, application development environments, security and systems management tools. Contains a significant amount of case histories which illustrate exactly how C/S systems are implemented.

Written by a well-known columnist for Software Magazine, this book introduces client/server computing to information systems managers and application developers. Offering in-depth overviews of all aspects of client/server systems, each chapter includes examples, product descriptions, and actual case histories of successful implementations.

Dear readers, Although it is well-known that confidentiality, integrity and availability are high level objectives of information security, much of the attention in the security arena has been devoted to the confidentiality and availability aspects of security. IFIP TC-ll Working Group 11. 5 has been charged with exploring the area of the integrity objective within information security and the relationship between integrity in information systems and the overall internal control systems that are established in organizations to support the corporate governance codes. In this collection you will not only find the papers that have been presented during the first working conference dedicated to the subject (section A) but also some of the papers that have formed the basis for the current activities of this working group (section B). Finally some information about IFIP TC-ll and its working groups is included (section C). This first working conference is the start for an ongoing dialog between the information security specialists and the internal control specialists so that both may work more effectively together to assist in creating effective business systems in the future.

UNIX: The Textbook, Third Edition provides a comprehensive introduction to the modern, twenty-first-century UNIX operating system. The book deploys PC-BSD and Solaris, representative systems of the major branches of the UNIX family, to illustrate the key concepts. It covers many topics not covered in older, more traditional textbook approaches, such as Python, UNIX System Programming from basics to socket-based network programming using the client-server paradigm, the Zettabyte File System (ZFS), and the highly developed X Windows-based KDE and Gnome GUI desktop environments. The third edition has been fully updated and expanded, with extensive revisions throughout. It features a new tutorial chapter on the Python programming language and its use in UNIX, as well as a complete tutorial on the git command with Github. It includes four new chapters on UNIX system programming and the UNIX API, which describe the use of the UNIX system call interface for file processing, process management, signal handling, interprocess communication (using pipes, FIFOs, and sockets), extensive coverage of internetworking with UNIX TCP/IP using the client-server software, and considerations for the design and implementation of production-quality client-server software using iterative and concurrent servers. It also includes new chapters on UNIX system administration, ZFS, and container virtualization methodologies using iocage, Solaris Jails, and VirtualBox. Utilizing the authors’ almost 65 years of practical teaching experience at the college level, this textbook presents well-thought-out sequencing of old and new topics, well-developed and timely lessons, a Github site containing all of the code in the book plus exercise solutions, and homework exercises/problems synchronized with the didactic sequencing of chapters in the book. With the exception of four chapters on system programming, the book can be used very successfully by a complete novice, as well as by an experienced UNIX system user, in both an informal and formal learning environment. The book may be used in several computer science and information technology courses, including UNIX for beginners and advanced users, shell and Python scripting, UNIX system programming, UNIX network programming, and UNIX system administration. It may also be used as a companion to the undergraduate and graduate level courses on operating system concepts and principles.

xiv box for Balanced Automation, research in this area is still young and emerging. In our opinion, the development of hybrid balanced solutions to cope with a variety of automation levels and manual approaches, is a much more challenging research problem than the search for a purely automatic solution. Various research activities described in this book illustrate some of these challenges through the development proposals, assisting tools, and initial results. In certain chapters however, the balancing aspects are not yet achieved in the research area, but their inclusion in this book is intended to give a broader and more comprehensive perspective of the multiple areas involved. One important aspect to be noticed is the extension and application of the concept of balanced automation to all areas of the manufacturing enterprise. Clearly, the need for a "balanced" approach is not restricted to the shop floor components, rather it applies to all other areas, as illustrated by the wide spectrum of research contributions found in this book. For instance, the need for an appropriate integration of multiple systems and their perspectives is particularly important for the implantation of virtual enterprises. Although both the BASYS'95 and the BASYS'96 conferences have provided important contributions, approaches, and tools for the implantation of balanced automation systems, there are a number of areas that require further research: .

While standardization has empowered the software industry to substantially scale software development and to provide affordable software to a broad market, it often does not address smaller market segments, nor the needs and wishes of individual customers. Software product lines reconcile mass production and standardization with mass customization in software engineering. Ideally, based on a set of reusable parts, a software manufacturer can generate a software product based on the requirements of its customer. The concept of features is central to achieving this level of automation, because features bridge the gap between the requirements the customer has and the functionality a product provides. Thus features are a central concept in all phases of product-line development. The authors take a developer’s viewpoint, focus on the development, maintenance, and implementation of product-line variability, and especially concentrate on automated product derivation based on a user’s feature selection. The book consists of three parts. Part I provides a general introduction to feature-oriented software product lines, describing the product-line approach and introducing the product-line development process with its two elements of domain and application engineering. The pivotal part II covers a wide variety of implementation techniques including design patterns, frameworks, components, feature-oriented programming, and aspect-oriented programming, as well as tool-based approaches including preprocessors, build systems, version-control systems, and virtual separation of concerns. Finally, part III is devoted to advanced topics related to feature-oriented product lines like refactoring, feature interaction, and analysis tools specific to product lines. In addition, an appendix lists various helpful tools for software product-line development, along with a description of how they relate to the topics covered in this book. To tie the book together, the authors use two running examples that are well documented in the product-line literature: data management for embedded systems, and variations of graph data structures. They start every chapter by explicitly stating the respective learning goals and finish it with a set of exercises; additional teaching material is also available online. All these features make the book ideally suited for teaching – both for academic classes and for professionals interested in self-study.

Reengineering is using information technology to improved performance and cut costs. Its main premise is to examine the goals of an organization and redesign work and business processes from the ground up rather than to simply automate existing tasks and functions. Reengineering is driven by open markets and competition. It is part of responding to a global economy where worldwide customers are more sophisticated and demanding. Defining and executing a systems integration process is a challenging project for a CIO or IS director. Let Reengineering: Systems Integration Success show you how. This multiauthored book covers all aspects of the systems integration process. It addresses critical success factors and underlying pitfalls of systems integration. Packed with features and benefits, Reengineering: Systems Integration Success is the key to success in your organization.