No matter how much instruction you’ve had on managing software requirements, there’s no substitute for experience. Too often, lessons about requirements engineering processes lack the no-nonsense guidance that supports real-world solutions. Complementing the best practices presented in his book, Software Requirements, Second Edition, requirements engineering authority Karl Wiegers tackles even more of the real issues head-on in this book. With straightforward, professional advice and practical solutions based on actual project experiences, this book answers many of the tough questions raised by industry professionals. From strategies for estimating and working with customers to the nuts and bolts of documenting requirements, this essential companion gives developers, analysts, and managers the cosmic truths that apply to virtually every software development project. Discover how to: • Make the business case for investing in better requirements practices • Generate estimates using three specific techniques • Conduct inquiries to elicit meaningful business and user requirements • Clearly document project scope • Implement use cases, scenarios, and user stories effectively • Improve inspections and peer reviews • Write requirements that avoid ambiguity
When 34-year-old forensic sculptor Jessica Sanford of Portland, Oregon, completes a forensic facial reconstruction on unidentified remains found in a forest, she discovers that she has a shocking personal connection to the victim. Jessica is then driven to identify the victim, to confirm their relationship, and to deliver justice for her death. Adopted as an infant, Jessica cleverly exploits connections with other adoptees and their families in her quest for the victim's identity. Once she understands her link to the victim, Jessica finds herself more immersed in this case than in anything she has done before. Those involved in the apparent homicide are still out there -- and Jessica intends to find them. Her relationships, her career, and her life are at risk as she strives to reconstruct the victim's last days. Not just about uncovering a crime and hunting the suspects, "The Reconstruction" is also about a young woman's search for her own identity. Though the reader knows from the outset who the victim is and who was involved with her death, Jessica does not. The reader accompanies Jessica as she applies all of her skills and all of her smarts to try to solve the mystery of a lifetime. "The Reconstruction" will appeal to readers who enjoy suspenseful mysteries, forensics procedurals, and novels featuring a strong female protagonist.
Zero in on key project-initiation tasks—and build a solid foundation for successful software development. In this concise guide, critically-acclaimed author Karl E. Wiegers fills a void in project management literature by focusing on the activities that are essential—but often overlooked—for launching any project. Drawing on his extensive experience, Karl shares lessons learned, proven practices, and tools for getting your project off to the right start—and steering it to ultimate success. Lay a foundation for project success—discover how to: Effectively charter a project Define meaningful criteria for project success and product releases Negotiate achievable commitments for project teams and stakeholders Identify and document potential barriers to success—and manage project risks Apply the Wideband Delphi method for more accurate estimation Measure project performance and avoid common metrics traps Systematically apply lessons learned to future projects Companion Web site includes: Worksheets from inside the book Project document templates Resources for project initiation and process improvement
Nicht wenige Software-Projekte erreichen ihre gesteckten Ziele nicht, da bereits in ihrer Anfangsphase Anforderungen an die Software nicht gründlich genug analysiert und dokumentiert wurden. Oft wird auch vernachlässigt, dass Softwareentwicklung genauso viel mit Kommunikation, wie mit eigentlicher Entwicklungsarbeit zu tun hat. An diesem Punkt setzt dieser Klassiker der Softwareentwicklungsliteratur an, in dem überzeugend präsentiert wird, warum die Erhebung, Zusammenstellung und das Managen von Software Requirements essentiell für erfolgreiche Projekte ist und mit welchen erprobten Mitteln diese Aufgaben am besten zu meistern sind. Karl Wiegers zeigt damit, wie Requirements-Analysten, Projektleiter, aber auch alle Programmierer und Designer, die Anforderungen der Kunden umsetzen müssen, Produktivität, Termintreue, Kundenzufriedenheit und Wartungs- und Supportkosten mit dem im Buch beschriebenen Praktiken drastisch verbessern können. - Realistische Erwartungen für Funktionalität und Qualität setzen - Geschäftsregeln in die Anwendungsentwicklung integrieren - Anwendungsfälle zur Definition von Benutzeranforderungen verwenden - Unausgesprochene und wechselnde Requirements identifizieren und managen - Revisionen einschränken und damit Kosten sparen - Besser Software produzieren
Zero In On Key Project-Initiation Tasks - And Build A Solid Foundation For Successful Software Development. In This Concise Guide, Critically-Acclaimed Author Karl E. Wiegers Fills A Void In Project Management Literature By Focusing On The Activities That A
Zero in on key project-initiation tasks—and build a solid foundation for successful software development. In this concise guide, critically-acclaimed author Karl E. Wiegers fills a void in project management literature by focusing on the activities that are essential—but often overlooked—for launching any project. Drawing on his extensive experience, Karl shares lessons learned, proven practices, and tools for getting your project off to the right start—and steering it to ultimate success. Lay a foundation for project success—discover how to: Effectively charter a project Define meaningful criteria for project success and product releases Negotiate achievable commitments for project teams and stakeholders Identify and document potential barriers to success—and manage project risks Apply the Wideband Delphi method for more accurate estimation Measure project performance and avoid common metrics traps Systematically apply lessons learned to future projects Companion Web site includes: Worksheets from inside the book Project document templates Resources for project initiation and process improvement
No matter how much instruction you’ve had on managing software requirements, there’s no substitute for experience. Too often, lessons about requirements engineering processes lack the no-nonsense guidance that supports real-world solutions. Complementing the best practices presented in his book, Software Requirements, Second Edition, requirements engineering authority Karl Wiegers tackles even more of the real issues head-on in this book. With straightforward, professional advice and practical solutions based on actual project experiences, this book answers many of the tough questions raised by industry professionals. From strategies for estimating and working with customers to the nuts and bolts of documenting requirements, this essential companion gives developers, analysts, and managers the cosmic truths that apply to virtually every software development project. Discover how to: • Make the business case for investing in better requirements practices • Generate estimates using three specific techniques • Conduct inquiries to elicit meaningful business and user requirements • Clearly document project scope • Implement use cases, scenarios, and user stories effectively • Improve inspections and peer reviews • Write requirements that avoid ambiguity
Now in its third edition, this classic guide to software requirements engineering has been fully updated with new topics, examples, and guidance. Two leaders in the requirements community have teamed up to deliver a contemporary set of practices covering the full range of requirements development and management activities on software projects. Describes practical, effective, field-tested techniques for managing the requirements engineering process from end to end. Provides examples demonstrating how requirements "good practices" can lead to fewer change requests, higher customer satisfaction, and lower development costs. Fully updated with contemporary examples and many new practices and techniques. Describes how to apply effective requirements practices to agile projects and numerous other special project situations. Targeted to business analysts, developers, project managers, and other software project stakeholders who have a general understanding of the software development process. Shares the insights gleaned from the authors’ extensive experience delivering hundreds of software-requirements training courses, presentations, and webinars. New chapters are included on specifying data requirements, writing high-quality functional requirements, and requirements reuse. Considerable depth has been added on business requirements, elicitation techniques, and nonfunctional requirements. In addition, new chapters recommend effective requirements practices for various special project situations, including enhancement and replacement, packaged solutions, outsourced, business process automation, analytics and reporting, and embedded and other real-time systems projects.
The Molybdenum Supplement Volume B/7 covers binary molybdenum sulfides and sulfide ions, the most prominent being molybdenum sulfide MoS2 on account of its numerous practical applications. It is a dry lubricant material and has become indispensable in high-vacuum and space applications. Semiconducting MoS2 photoelectrodes have achieved sizable solar energy conversions in photoelectrochemical cells. Its capability to reversibly intercalate lithium ions enables the construction of low-weight, high efficiency, secondary batteries. MoS2 doped with cobalt is useful as a catalyst of the hydrosulfurization of organic compounds. All these remarkable properties are related to its layered structure built up of covalently bound SMoS sheets held together by only weak van der Waals forces.
A fascinating aspect of many of the selenium- and tellurium-containing compounds described in this volume is that they are built up from octahedral Mo6 clusters which are surrounded by eight other atoms X in the form of a cube: Mo6X8. The Mo atoms occupy the centers of the faces of the X8 cube. The interesting variety in the substiution of the X positions can be encountered throughout the whole volume. The X atoms can be of a single element as in Mo6Te8, but can also be statistically occupied by two elements, e.g., in Mo6(Te,S)8, or even by more elements as in Mo6(Te,Se)8-yIy. In addition, there are channels with vacant positions between the Mo6X8 clusters in the diagonal direction of the X8 cube. These vacant positions offer more possibilities for the fantasy of the chemist.
This volume describes preparation and properties of the enormous number of molybdenum oxide sulfide ions. The monomeric anions display an impressive range of colors - yellow to a deep reddish orange - which in 1826 fascinated Berzelius. Nowadays, however, the stimulus for research and development springs from bioinorganic chemistry. Numerous molybdenum chalcogenide halides are known: the most investigated have been those containing Mo6 clusters. In addition, the volume contains the binary molybdenum selenides; of these, the most important is the heavily studied MoSe2. Among the molybdenum dichalcogenides, MoSe2 shows the most promising photoelectrochemical properties, making it attractive for use in electrochemical solar cells. All binary molybdenum selenides reversibly intercalate a variety of metals - of importance for use in rechargeable batteries.
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