Extending the Legacy PDF Download

Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 150

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Author: David Scott Bernstein
Publisher:
ISBN: 9781680500790
Category : Application software
Languages : en
Pages : 0

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Book Description
We're losing tens of billions of dollars a year on broken software, and great new ideas such as agile development and Scrum don't always pay off. But there's hope. The nine software development practices in Beyond Legacy Code are designed to solve the problems facing our industry. Discover why these practices work, not just how they work, and dramatically increase the quality and maintainability of any software project. These nine practices could save the software industry. Beyond Legacy Code is filled with practical, hands-on advice and a common-sense exploration of why technical practices such as refactoring and test-first development are critical to building maintainable software. Discover how to avoid the pitfalls teams encounter when adopting these practices, and how to dramatically reduce the risk associated with building software--realizing significant savings in both the short and long term. With a deeper understanding of the principles behind the practices, you'll build software that's easier and less costly to maintain and extend. By adopting these nine key technical practices, you'll learn to say what, why, and for whom before how; build in small batches; integrate continuously; collaborate; create CLEAN code; write the test first; specify behaviors with tests; implement the design last; and refactor legacy code. Software developers will find hands-on, pragmatic advice for writing higher quality, more maintainable, and bug-free code. Managers, customers, and product owners will gain deeper insight into vital processes. By moving beyond the old-fashioned procedural thinking of the Industrial Revolution, and working together to embrace standards and practices that will advance software development, we can turn the legacy code crisis into a true Information Revolution.

Author: Lyn Corno
Publisher: Routledge
ISBN: 1135660115
Category : Education
Languages : en
Pages : 327

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Book Description
The unique perspective of Richard E. Snow, in recent years one of the most distinguished educational psychologists, integrates psychology of individual differences, cognitive psychology, and motivational psychology. This capstone book pulls together the findings of his own 35 years of research on aptitudes and those from (especially) European scholars, of which he had exceptional knowledge. A panel of experts and former associates completed this book after his death in 1997, expanding his notes on implications of the theory for instructional design and teaching practice. The panel developed Snow's ideas on where the field should go next, emphasizing promising research strategies. Viewing intelligence as education's most important product, as well as its most important raw material, Snow stressed the need to consider both cognitive skills and affective-motivational characteristics. In this book, previously unconnected research and scattered theoretical ideas are integrated into a dynamic model of aptitude. Understanding the transaction between person and situation was Snow's primary concern. This volume draws from diverse resources to construct a theoretical model of aptitude as a complex process of unfolding person-situation dynamics. Remaking the Concept of Aptitude: Extending the Legacy of Richard E. Snow: *presents historical and contemporary discussion of aptitude theory, illuminating recent ideas by pointing to their historic antecedents; *provides evidence of how sound research can have practical ramifications in classroom settings; *discusses the strengths and weaknesses of prominent research programs, including Gardner's "multiple intelligence," meta-analysis, ATI experiments, and information processing; *describes in detail specific research that has developed important concepts--for example, Czikszentmihalyi on "flow"; Lambrechts on success in stressful training; Sternberg on componential analysis; and Gibson on tailoring affordances to match motivations; and *keeps statistical complexities to a minimum, and includes a simply written Appendix that explains the interpretation of key technical concepts. By characterizing sound research in the field, this volume is useful for psychologists and educational researchers. It will also be instructive for teachers seeking to deepen their knowledge of the whole child and for parents of children facing standardized testing.

Author: Michael Feathers
Publisher: Prentice Hall Professional
ISBN: 0132931753
Category : Computers
Languages : en
Pages : 457

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Get more out of your legacy systems: more performance, functionality, reliability, and manageability Is your code easy to change? Can you get nearly instantaneous feedback when you do change it? Do you understand it? If the answer to any of these questions is no, you have legacy code, and it is draining time and money away from your development efforts. In this book, Michael Feathers offers start-to-finish strategies for working more effectively with large, untested legacy code bases. This book draws on material Michael created for his renowned Object Mentor seminars: techniques Michael has used in mentoring to help hundreds of developers, technical managers, and testers bring their legacy systems under control. The topics covered include Understanding the mechanics of software change: adding features, fixing bugs, improving design, optimizing performance Getting legacy code into a test harness Writing tests that protect you against introducing new problems Techniques that can be used with any language or platform—with examples in Java, C++, C, and C# Accurately identifying where code changes need to be made Coping with legacy systems that aren't object-oriented Handling applications that don't seem to have any structure This book also includes a catalog of twenty-four dependency-breaking techniques that help you work with program elements in isolation and make safer changes.

Author: Fred I. Cooperstock
Publisher: World Scientific
ISBN: 9814271179
Category : Science
Languages : en
Pages : 243

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This book brings Einstein's general relativity into action in new ways at scales ranging from the tiny Planck scale to the scale of immense galactic clusters. It presents the case that Einstein's theory of gravity can describe the observed dynamics of galaxies without invoking the unknown OC dark matterOCO required in models based on Newtonian gravity. Drawing on the author's experience as a lecturer and on his own research, the book covers the essentials of Einstein's special and general relativity at a level accessible to undergraduate students. The early chapters provide a compact introduction to relativity for readers who have little or no background in the subject. Hermann Bondi's very transparent approach to special relativity is expanded to resolve the OC twin paradoxOCO using only elementary mathematics. In later chapters, general relativity is used to extend the concept of the Planck scale, to address the role of the cosmological term and to analyze the concept of OC time machinesOCO.

Author: William M. Ulrich
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 456

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Book Description
In Legacy Systems: Transformation Strategies, leading IT and business architecture consultant William Ulrich presents a step-by-step, phased roadmap to legacy transformation that maximizes business value, while minimizing cost, disruption, and risk. Transformation strategies, organizing disciplines, techniques, and tools reduce the risks of deploying the component-based architectures you need to stay competitive while maximizing the business value of core systems that work.

Author: Andrew Walker
Publisher: Purdue University Press
ISBN: 1612493688
Category : Education
Languages : en
Pages : 398

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Book Description
Like most good educational interventions, problem-based learning (PBL) did not grow out of theory, but out of a practical problem. Medical students were bored, dropping out, and unable to apply what they had learned in lectures to their practical experiences a couple of years later. Neurologist Howard S. Barrows reversed the sequence, presenting students with patient problems to solve in small groups and requiring them to seek relevant knowledge in an effort to solve those problems. Out of his work, PBL was born. The application of PBL approaches has now spread far beyond medical education. Today, PBL is used at levels from elementary school to adult education, in disciplines ranging across the humanities and sciences, and in both academic and corporate settings. This book aims to take stock of developments in the field and to bridge the gap between practice and the theoretical tradition, originated by Barrows, that underlies PBL techniques.

Author: David McAlvany
Publisher:
ISBN: 9781943217434
Category :
Languages : en
Pages :

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Author: Chris Birchall
Publisher: Simon and Schuster
ISBN: 1638353328
Category : Computers
Languages : en
Pages : 331

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Summary As a developer, you may inherit projects built on existing codebases with design patterns, usage assumptions, infrastructure, and tooling from another time and another team. Fortunately, there are ways to breathe new life into legacy projects so you can maintain, improve, and scale them without fighting their limitations. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Book Re-Engineering Legacy Software is an experience-driven guide to revitalizing inherited projects. It covers refactoring, quality metrics, toolchain and workflow, continuous integration, infrastructure automation, and organizational culture. You'll learn techniques for introducing dependency injection for code modularity, quantitatively measuring quality, and automating infrastructure. You'll also develop practical processes for deciding whether to rewrite or refactor, organizing teams, and convincing management that quality matters. Core topics include deciphering and modularizing awkward code structures, integrating and automating tests, replacing outdated build systems, and using tools like Vagrant and Ansible for infrastructure automation. What's Inside Refactoring legacy codebases Continuous inspection and integration Automating legacy infrastructure New tests for old code Modularizing monolithic projects About the Reader This book is written for developers and team leads comfortable with an OO language like Java or C#. About the Author Chris Birchall is a senior developer at the Guardian in London, working on the back-end services that power the website. Table of Contents PART 1 GETTING STARTED Understanding the challenges of legacy projects Finding your starting point PART 2 REFACTORING TO IMPROVE THE CODEBASE Preparing to refactor Refactoring Re-architecting The Big Rewrite PART 3 BEYOND REFACTORING—IMPROVING PROJECT WORKFLOWAND INFRASTRUCTURE Automating the development environment Extending automation to test, staging, and production environments Modernizing the development, building, and deployment of legacy software Stop writing legacy code!

Author: Cayla Kluver
Publisher: Harlequin
ISBN: 1459222903
Category : Young Adult Fiction
Languages : en
Pages : 501

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Book Description
He couldn't help his past any more than he could help the way those intense, deep blue eyes pierced me and held me captive. An eighteen-year-old queen in love with the enemy as their countries pass the point of no return… Bound to a man she cannot love, Queen Alera of Hytanica must forget Narian, the young man who holds her heart. For Narian is destined to conquer Hytanica at the behest of his master, the powerful magic-user known as the Overlord. Alera doesn't truly believe Narian will fight against Hytanica—until Cokyrian troops attack with Narian commanding the charge. Faced with the greatest betrayal a heart can know, Alera must set aside personal feelings and lead her kingdom through its darkest time. And when all hope, will and courage seem lost, she must find strength and remember that even the blackest night must have a dawn….