Patterns of Software System Failure and Success

Patterns of Software System Failure and Success PDF Author: Capers Jones
Publisher: Itp New Media
ISBN:
Category : Computers
Languages : en
Pages : 326

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Book Description
This text explains why some software systems fail and what you can do to salvage them before they mean critical disaster. It ultimately provides an in-depth look at all the factors which affect development, and suggests ways in which to minimize risks and

Patterns of Software System Failure and Success

Patterns of Software System Failure and Success PDF Author: Capers Jones
Publisher: Itp New Media
ISBN:
Category : Computers
Languages : en
Pages : 326

Get Book Here

Book Description
This text explains why some software systems fail and what you can do to salvage them before they mean critical disaster. It ultimately provides an in-depth look at all the factors which affect development, and suggests ways in which to minimize risks and

Process Patterns

Process Patterns PDF Author: Scott W. Ambler
Publisher: Cambridge University Press
ISBN: 9780521645683
Category : Computers
Languages : en
Pages : 574

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Book Description
Written by one of the best known object-oriented practitioners in the business, Process Patterns is based on proven, real-world techniques. Scott Ambler shows readers how to successfully deliver large-scale applications using object technology and carefully describes how one develops applications that are truly easy to maintain and to enhance. He shows how such projects can be supported and points out what is necessary to ensure that one's development efforts are of the best quality. His object-oriented software process (OOSP) is geared toward medium to large-size organizations that need to internally develop software to support their main line of business. Developers and project managers who have just taken their first OO development course will find this book essential. It describes the only OOSP to take the true needs of development into consideration, including cross-project, maintenance, operations, and support issues. This book uses the Unified Modeling Language (UML).

Software Development Patterns and Antipatterns

Software Development Patterns and Antipatterns PDF Author: Capers Jones
Publisher: CRC Press
ISBN: 1000414736
Category : Computers
Languages : en
Pages : 513

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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.

Handbook of Systems Engineering and Management

Handbook of Systems Engineering and Management PDF Author: Andrew P. Sage
Publisher: John Wiley & Sons
ISBN: 0470083530
Category : Technology & Engineering
Languages : en
Pages : 1502

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Book Description
The trusted handbook—now in a new edition This newly revised handbook presents a multifaceted view of systems engineering from process and systems management perspectives. It begins with a comprehensive introduction to the subject and provides a brief overview of the thirty-four chapters that follow. This introductory chapter is intended to serve as a "field guide" that indicates why, when, and how to use the material that follows in the handbook. Topical coverage includes: systems engineering life cycles and management; risk management; discovering system requirements; configuration management; cost management; total quality management; reliability, maintainability, and availability; concurrent engineering; standards in systems engineering; system architectures; systems design; systems integration; systematic measurements; human supervisory control; managing organizational and individual decision-making; systems reengineering; project planning; human systems integration; information technology and knowledge management; and more. The handbook is written and edited for systems engineers in industry and government, and to serve as a university reference handbook in systems engineering and management courses. By focusing on systems engineering processes and systems management, the editors have produced a long-lasting handbook that will make a difference in the design of systems of all types that are large in scale and/or scope.

Why Startups Fail

Why Startups Fail PDF Author: Tom Eisenmann
Publisher: Crown Currency
ISBN: 0593137027
Category : Business & Economics
Languages : en
Pages : 370

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Book Description
If you want your startup to succeed, you need to understand why startups fail. “Whether you’re a first-time founder or looking to bring innovation into a corporate environment, Why Startups Fail is essential reading.”—Eric Ries, founder and CEO, LTSE, and New York Times bestselling author of The Lean Startup and The Startup Way Why do startups fail? That question caught Harvard Business School professor Tom Eisenmann by surprise when he realized he couldn’t answer it. So he launched a multiyear research project to find out. In Why Startups Fail, Eisenmann reveals his findings: six distinct patterns that account for the vast majority of startup failures. • Bad Bedfellows. Startup success is thought to rest largely on the founder’s talents and instincts. But the wrong team, investors, or partners can sink a venture just as quickly. • False Starts. In following the oft-cited advice to “fail fast” and to “launch before you’re ready,” founders risk wasting time and capital on the wrong solutions. • False Promises. Success with early adopters can be misleading and give founders unwarranted confidence to expand. • Speed Traps. Despite the pressure to “get big fast,” hypergrowth can spell disaster for even the most promising ventures. • Help Wanted. Rapidly scaling startups need lots of capital and talent, but they can make mistakes that leave them suddenly in short supply of both. • Cascading Miracles. Silicon Valley exhorts entrepreneurs to dream big. But the bigger the vision, the more things that can go wrong. Drawing on fascinating stories of ventures that failed to fulfill their early promise—from a home-furnishings retailer to a concierge dog-walking service, from a dating app to the inventor of a sophisticated social robot, from a fashion brand to a startup deploying a vast network of charging stations for electric vehicles—Eisenmann offers frameworks for detecting when a venture is vulnerable to these patterns, along with a wealth of strategies and tactics for avoiding them. A must-read for founders at any stage of their entrepreneurial journey, Why Startups Fail is not merely a guide to preventing failure but also a roadmap charting the path to startup success.

Unleashing the Power of IT

Unleashing the Power of IT PDF Author: Dan Roberts
Publisher: John Wiley & Sons
ISBN: 111873856X
Category : Business & Economics
Languages : en
Pages : 242

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Book Description
Go from the "IT guy" to trusted business partner If you're in IT, quite a lot is expected of you and your team: be technologically advanced, business-minded, customer-focused, and financially astute, all at once. In the face of unforgiving competition, rampant globalization, and demanding customers, business leaders are discovering that it's absolutely essential to have a strong, active partner keeping a firm hand on the decisions and strategies surrounding information technology. Unleashing the Power of IT provides tangible, hard-hitting, real-world strategies, techniques, and approaches that will immediately transform your IT workforce and culture, presenting the new mindset, skill set, and tool set necessary for IT leaders to thrive in today's challenging environment. Includes new discussion on social media Offers online access to the IT Skill Builder Competency Assessment Tool Features top ten lists of tips and techniques, proven frameworks, and practical guidance to help you launch and sustain your IT culture change and professional development initiatives Profiling several world-class organizations that have implemented the principles in this book, Unleashing the Power of IT reveals the best practices to get you on the path to implementation.

Software Development Failures

Software Development Failures PDF Author: Kweku Ewusi-Mensah
Publisher: MIT Press
ISBN: 9780262262576
Category : Computers
Languages : en
Pages : 304

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Book Description
An empirically based study of why software development failures happen, and the lessons we can learn. Failed or abandoned software development projects cost the U.S. economy alone billions of dollars a year. In Software Development Failures, Kweku Ewusi-Mensah offers an empirically grounded study that suggests why these failures happen and how they can be avoided. Case studies analyzed include the well-known Confirm travel industry reservation program, FoxMeyer's Delta, the IRS's Tax System Modernization, the Denver International Airport's Baggage Handling System, and CODIS. It has been estimated that one-third of software development projects fail or are abandoned outright because of cost overruns, delays, and reduced functionality. Some consider this an acceptable risk—that it is simply the cost of doing business. Ewusi-Mensah argues that understanding the factors involved in development failures will help developers and businesses bring down the rate of software failure and abandoned projects. Ewusi-Mensah explores the reasons software development projects are vulnerable to failure and why issues of management and organization are at the core of any failed project. He examines these projects not from a deterministically technical perspective but as part of a complex technical and social process; he proposes a framework of factors that contribute to the decision to abandon a project and enumerates the risks and uncertainties inherent in each phase of a project's life cycle. Exploring the multiplicity of factors that make software development risky, he presents empirical data that is reinforced by analyses of the reported cases. He emphasizes the role of the user in the development process and considers the effect of organizational politics on a project. Finally, he considers what lessons can be learned from past failures and how software development practices can be improved.

Information Systems Development

Information Systems Development PDF Author: Marite Kirikova
Publisher: Springer Science & Business Media
ISBN: 1461501679
Category : Computers
Languages : en
Pages : 458

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Book Description
This book is the result of the 11 th International Conference on Information Systems Development -Methods and Tools, Theory and Practice, held in Riga, Latvia, September 12-14,2002. The purpose of this conference was to address issues facing academia and industry when specifying, developing, managing, reengineering and improving information systems. Recently many new concepts and approaches have emerged in the Information Systems Development (ISD) field. Various theories, methodologies, methods and tools available to system developers also created new problems, such as choosing the most effective approach for a specific task, or solving problems of advanced technology integration into information systems. This conference provides a meeting place for ISD researchers and practitioners from Eastern and Western Europe as well as from other parts of the world. Main objectives of this conference are to share scientific knowledge and interests and to establish strong professional ties among the participants. The 11th International Conference on Information Systems Development (ISD'02) continues the tradition started with the first Polish-Scandinavian Seminar on Current Trends in Information Systems Development Methodologies, held in Gdansk, Poland in 1988. Through the years this Seminar has evolved into the International Conference on Information Systems Development. ISD'02 is the first ISD conference held in Eastern Europe, namely, in Latvia, one of the three Baltic countries.

Systems Analysis and Design

Systems Analysis and Design PDF Author: Alan Dennis
Publisher: John Wiley & Sons
ISBN: 0470228547
Category : Computers
Languages : en
Pages : 577

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Book Description
The 4th edition of Systems Analysis and Design continues to offer a hands-on approach to SA&D while focusing on the core set of skills that all analysts must possess. Building on their experience as professional systems analysts and award-winning teachers, authors Dennis, Wixom, and Roth capture the experience of developing and analyzing systems in a way that students can understand and apply. With Systems Analysis and Design, 4th edition, students will leave the course with experience that is a rich foundation for further work as a systems analyst.

Software Architecture Patterns for Serverless Systems

Software Architecture Patterns for Serverless Systems PDF Author: John Gilbert
Publisher: Packt Publishing Ltd
ISBN: 1800200730
Category : Computers
Languages : en
Pages : 436

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Book Description
A professional's guide to solving complex problems while designing modern software Key FeaturesLearn best practices for designing enterprise-grade software systems from a seasoned CTODeeper your understanding of system reliability, maintainability, and scalabilityElevate your skills to a professional level by learning the most effective software design patterns and architectural conceptsBook Description As businesses are undergoing a digital transformation to keep up with competition, it is now more important than ever for IT professionals to design systems to keep up with the rate of change while maintaining stability. This book takes you through the architectural patterns that power enterprise-grade software systems and the key architectural elements that enable change (such as events, autonomous services, and micro frontends), along with showing you how to implement and operate anti-fragile systems. First, you'll divide up a system and define boundaries so that your teams can work autonomously and accelerate innovation. You'll cover low-level event and data patterns that support the entire architecture, while getting up and running with the different autonomous service design patterns. Next, the book will focus on best practices for security, reliability, testability, observability, and performance. You'll combine all that you've learned and build upon that foundation, exploring the methodologies of continuous experimentation, deployment, and delivery before delving into some final thoughts on how to start making progress. By the end of this book, you'll be able to architect your own event-driven, serverless systems that are ready to adapt and change so that you can deliver value at the pace needed by your business. What you will learnExplore architectural patterns to create anti-fragile systems that thrive with changeFocus on DevOps practices that empower self-sufficient, full-stack teamsBuild enterprise-scale serverless systemsApply microservices principles to the frontendDiscover how SOLID principles apply to software and database architectureCreate event stream processors that power the event sourcing and CQRS patternDeploy a multi-regional system, including regional health checks, latency-based routing, and replicationExplore the Strangler pattern for migrating legacy systemsWho this book is for This book is for software architects who want to learn more about different software design patterns and best practices. This isn't a beginner's manual – you'll need an intermediate level of programming proficiency and software design to get started. You'll get the most out of this software design book if you already know the basics of the cloud, but it isn't a prerequisite.