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Quantifying Software

Author : Capers Jones

Publisher : CRC Press

Page : 562 pages

File Size : 16,19 MB

Release : 2017-10-24

Category : Computers

ISBN : 131531441X

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Book Description

Software is one of the most important products in human history and is widely used by all industries and all countries. It is also one of the most expensive and labor-intensive products in human history. Software also has very poor quality that has caused many major disasters and wasted many millions of dollars. Software is also the target of frequent and increasingly serious cyber-attacks. Among the reasons for these software problems is a chronic lack of reliable quantified data. This reference provides quantified data from many countries and many industries based on about 26,000 projects developed using a variety of methodologies and team experience levels. The data has been gathered between 1970 and 2017, so interesting historical trends are available. Since current average software productivity and quality results are suboptimal, this book focuses on "best in class" results and shows not only quantified quality and productivity data from best-in-class organizations, but also the technology stacks used to achieve best-in-class results. The overall goal of this book is to encourage the adoption of best-in-class software metrics and best-in-class technology stacks. It does so by providing current data on average software schedules, effort, costs, and quality for several industries and countries. Because productivity and quality vary by technology and size, the book presents quantitative results for applications between 100 function points and 100,000 function points. It shows quality results using defect potential and DRE metrics because the number one cost driver for software is finding and fixing bugs. The book presents data on cost of quality for software projects and discusses technical debt, but that metric is not standardized. Finally, the book includes some data on three years of software maintenance and enhancements as well as some data on total cost of ownership.



The Certified Software Quality Engineer Handbook

Author : Linda Westfall

Publisher : Quality Press

Page : 1050 pages

File Size : 37,19 MB

Release : 2016-09-23

Category : Computers

ISBN : 195105878X

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Book Description

This handbook contains information and guidance that supports all of the topics of the 2016 version of the CSQE Body of Knowledge (BoK) upon which ASQ's Certified Software Quality Engineer/(CSQE) exam is based. Armed with the knowledge presented in this handbook to complement the required years of actual work experience, qualified software quality practitioners may feel confident they have taken appropriate steps in preparation for the ASQ CSQE exam. However, the goals for this handbook go well beyond it being a CSQE exam preparation guide. Its author designed this handbook not only to help the software quality engineers, but as a resource for software development practitioners, project managers, organizational managers, other quality practitioners, and other professionals who need to understand the aspects of software quality that impact their work. It can also be used to benchmark their (or their organization's) understanding and application of software quality principles and practices against what is considered a cross-industry good practice baseline. After all, taking stock of strengths and weaknesses, software engineers can develop proactive strategies to leverage software quality as a competitive advantage. New software quality engineers can use this handbook to gain an understanding of their chosen profession. Experienced software quality engineers can use this handbook as a reference source when performing their daily work. It is also hoped that trainers and educators will use this handbook to help propagate software quality engineering knowledge to future software practitioners and managers. Finally, this handbook strives to establish a common vocabulary that software quality engineers, and others in their organizations can use to communicate about software and quality. Thus increasing the professionalism of the industry and eliminating the wastes that can result from ambiguity and misunderstandings.



Software Development Patterns and Antipatterns

Author : Capers Jones

Publisher : CRC Press

Page : 475 pages

File Size : 34,1 MB

Release : 2021-08-27

Category : Computers

ISBN : 1000414744

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Book Description

Software development has been a troubling since it first started. There are seven chronic problems that have plagued it from the beginning: Incomplete and ambiguous user requirements that grow by >2% per month. Major cost and schedule overruns for large applications > 35% higher than planned. Low defect removal efficiency (DRE) Cancelled projects that are not completed: > 30% above 10,000 function points. Poor quality and low reliability after the software is delivered: > 5 bugs per FP. Breach of contract litigation against software outsource vendors. Expensive maintenance and enhancement costs after delivery. These are endemic problems for software executives, software engineers and software customers but they are not insurmountable. In Software Development Patterns and Antipatterns, software engineering and metrics pioneer Capers Jones presents technical solutions for all seven. The solutions involve moving from harmful patterns of software development to effective patterns of software development. The first section of the book examines common software development problems that have been observed in many companies and government agencies. The data on the problems comes from consulting studies, breach of contract lawsuits, and the literature on major software failures. This section considers the factors involved with cost overruns, schedule delays, canceled projects, poor quality, and expensive maintenance after deployment. The second section shows patterns that lead to software success. The data comes from actual companies. The section’s first chapter on Corporate Software Risk Reduction in a Fortune 500 company was based on a major telecom company whose CEO was troubled by repeated software failures. The other chapters in this section deal with methods of achieving excellence, as well as measures that can prove excellence to C-level executives, and with continuing excellence through the maintenance cycle as well as for software development.



Lean Software Development

Author : Mary Poppendieck

Publisher : Addison-Wesley

Page : 236 pages

File Size : 31,95 MB

Release : 2003-05-08

Category : Computers

ISBN : 0133812960

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Book Description

Lean Software Development: An Agile Toolkit Adapting agile practices to your development organization Uncovering and eradicating waste throughout the software development lifecycle Practical techniques for every development manager, project manager, and technical leader Lean software development: applying agile principles to your organization In Lean Software Development, Mary and Tom Poppendieck identify seven fundamental "lean" principles, adapt them for the world of software development, and show how they can serve as the foundation for agile development approaches that work. Along the way, they introduce 22 "thinking tools" that can help you customize the right agile practices for any environment. Better, cheaper, faster software development. You can have all three–if you adopt the same lean principles that have already revolutionized manufacturing, logistics and product development. Iterating towards excellence: software development as an exercise in discovery Managing uncertainty: "decide as late as possible" by building change into the system. Compressing the value stream: rapid development, feedback, and improvement Empowering teams and individuals without compromising coordination Software with integrity: promoting coherence, usability, fitness, maintainability, and adaptability How to "see the whole"–even when your developers are scattered across multiple locations and contractors Simply put, Lean Software Development helps you refocus development on value, flow, and people–so you can achieve breakthrough quality, savings, speed, and business alignment.



Project Management of Large Software-Intensive Systems

Author : Marvin Gechman

Publisher : CRC Press

Page : 502 pages

File Size : 16,44 MB

Release : 2019-03-11

Category : Business & Economics

ISBN : 0429648162

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Book Description

The book describes how to manage and successfully deliver large, complex, and expensive systems that can be composed of millions of line of software code, being developed by numerous groups throughout the globe, that interface with many hardware items being developed by geographically dispersed companies, where the system also includes people, policies, constraints, regulations, and a myriad of other factors. It focuses on how to seamlessly integrate systems, satisfy the customer’s requirements, and deliver within the budget and on time. The guide is essentially a “shopping list” of all the activities that could be conducted with tailoring guidelines to meet the needs of each project.



Lifemark

Author :

Publisher : Addison-Wesley Professional

Page : 125 pages

File Size : 31,38 MB

Release : 2022

Category : Adoptees

ISBN : 0133598446

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Book Description

Publisher Annotation: David's comfortable world is turned upside down when his birthmother unexpectedly reaches out to him, longing to meet the 18-year-old son she's only held once. With the encouragement of his adoptive parents, David embarks on a journey of discovery that leads to a staggering truth from his past.



Software Maintenance Management

Author : Alain April

Publisher : John Wiley & Sons

Page : 336 pages

File Size : 26,76 MB

Release : 2012-04-20

Category : Computers

ISBN : 0470258020

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Book Description

This book explores the domain of software maintenance management and provides road maps for improving software maintenance organizations. It describes full maintenance maturity models organized by levels 1, 2, and 3, which allow for benchmarking and continuous improvement paths. Goals for each key practice area are also provided, and the model presented is fully aligned with the architecture and framework of software development maturity models of CMMI and ISO 15504. It is complete with case studies, figures, tables, and graphs.



Software Testing Strategies

Author : Matthew Heusser

Publisher : Packt Publishing Ltd

Page : 378 pages

File Size : 23,92 MB

Release : 2023-12-22

Category : Computers

ISBN : 1837637857

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Book Description

Unlock the true potential of software testing to achieve seamless software performance with this comprehensive guide Key Features Gain a solid understanding of software testing and master its multifaceted strategies Empower yourself to effectively overcome software testing challenges Develop actionable real-world testing skills for succeeding in any role Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionIn today’s world, software is everywhere—from entertainment apps to mission-critical systems that support our health, finance, and infrastructure. Testing plays a vital role in ensuring these systems work reliably. Whether you're a software developer, hobbyist, or IT professional, this book will guide you in mastering the art of testing. It’s about asking the right "What if?" questions, uncovering vulnerabilities, and ensuring software performs as expected throughout its lifecycle. Testing isn't just about automation; it’s a human-driven, creative process that requires skill, and a deep understanding of software behavior. With practical examples and expert insights, this book helps you craft your own test strategies and explore novel approaches to problem-solving in the testing world. With its help, you’ll hone your testing skills with techniques and methodologies rather than tool-based solutions. Authored by experts Matt Heusser and Michael Larson, the book provides valuable strategies for making testing both effective and engaging. Matt is known for his leadership in project rescue initiatives, while Michael’s work in accessibility testing has helped shape industry standards. By the end of this book, you’ll be equipped to enhance your testing practices and ensure high-quality software in an ever-evolving tech landscape.What you will learn Explore accessibility, functional testing, performance testing, and more as an integral part of testing Find out how to implement a wide range of testing approaches Develop the skills needed to create effective testing strategies tailored to your project's needs Discover how to prioritize and execute the most impactful test ideas Gain insight into when and how to apply different testing elements Defend your chosen testing strategy with a comprehensive understanding of its components Who this book is for This book is for a broad spectrum of professionals engaged in software development, including programmers, testers, and DevOps specialists. Tailored to those who aspire to elevate their testing practices beyond the basics, the book caters to anyone seeking practical insights and strategies to master the nuanced interplay between human intuition and automation. Whether you are a seasoned developer, meticulous tester, or DevOps professional, this comprehensive guide offers a transformative roadmap to become an adept strategist in the dynamic realm of software quality assurance.



Accelerating Science and Engineering Discoveries Through Integrated Research Infrastructure for Experiment, Big Data, Modeling and Simulation

Author : Kothe Doug

Publisher : Springer Nature

Page : 406 pages

File Size : 27,98 MB

Release : 2023-01-17

Category : Computers

ISBN : 3031236068

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Book Description

This book constitutes the refereed proceedings of the 22nd Smoky Mountains Computational Sciences and Engineering Conference on Accelerating Science and Engineering Discoveries Through Integrated Research Infrastructure for Experiment, Big Data, Modeling and Simulation, SMC 2022, held virtually, during August 23–25, 2022. The 24 full papers included in this book were carefully reviewed and selected from 74 submissions. They were organized in topical sections as follows: foundational methods enabling science in an integrated ecosystem; science and engineering applications requiring and motivating an integrated ecosystem; systems and software advances enabling an integrated science and engineering ecosystem; deploying advanced technologies for an integrated science and engineering ecosystem; and scientific data challenges.



Software Maintenance - A Management Perspective

Author : Phaneendra Nath Vellanky

Publisher : Universal-Publishers

Page : 591 pages

File Size : 33,22 MB

Release : 2007-10-23

Category :

ISBN : 1581129807

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Book Description

Computer systems play an important role in our society. Software drives those systems. Massive investments of time and resources are made in developing and implementing these systems. Maintenance is inevitable. It is hard and costly. Considerable resources are required to keep the systems active and dependable. We cannot maintain software unless maintainability characters are built into the products and processes. There is an urgent need to reinforce software development practices based on quality and reliability principles. Though maintenance is a mini development lifecycle, it has its own problems. Maintenance issues need corresponding tools and techniques to address them. Software professionals are key players in maintenance. While development is an art and science, maintenance is a craft. We need to develop maintenance personnel to master this craft. Technology impact is very high in systems world today. We can no longer conduct business in the way we did before. That calls for reengineering systems and software. Even reengineered software needs maintenance, soon after its implementation. We have to take business knowledge, procedures, and data into the newly reengineered world. Software maintenance people can play an important role in this migration process. Software technology is moving into global and distributed networking environments. Client/server systems and object-orientation are on their way. Massively parallel processing systems and networking resources are changing database services into corporate data warehouses. Software engineering environments, rapid application development tools are changing the way we used to develop and maintain software. Software maintenance is moving from code maintenance to design maintenance, even onto specification maintenance. Modifications today are made at specification level, regenating the software components, testing and integrating them with the system. Eventually software maintenance has to manage the evolution and evolutionary characteristics of software systems. Software professionals have to maintain not only the software, but the momentum of change in systems and software. In this study, we observe various issues, tools and techniques, and the emerging trends in software technology with particular reference to maintenance. We are not searching for specific solutions. We are identifying issues and finding ways to manage them, live with them, and control their negative impact.