Extending The Legacy

Draft of a new plan for Washington's Monumental Core, showing what the Mall and adjacent areas could look like in the next 50 to 100 years.

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.

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.

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.