Author: Brendan Gregg
Publisher: Pearson Education
ISBN: 0133390098
Category : Business & Economics
Languages : en
Pages : 777
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Book Description
The Complete Guide to Optimizing Systems Performance Written by the winner of the 2013 LISA Award for Outstanding Achievement in System Administration Large-scale enterprise, cloud, and virtualized computing systems have introduced serious performance challenges. Now, internationally renowned performance expert Brendan Gregg has brought together proven methodologies, tools, and metrics for analyzing and tuning even the most complex environments. Systems Performance: Enterprise and the Cloud focuses on Linux(R) and Unix(R) performance, while illuminating performance issues that are relevant to all operating systems. You'll gain deep insight into how systems work and perform, and learn methodologies for analyzing and improving system and application performance. Gregg presents examples from bare-metal systems and virtualized cloud tenants running Linux-based Ubuntu(R), Fedora(R), CentOS, and the illumos-based Joyent(R) SmartOS(TM) and OmniTI OmniOS(R). He systematically covers modern systems performance, including the "traditional" analysis of CPUs, memory, disks, and networks, and new areas including cloud computing and dynamic tracing. This book also helps you identify and fix the "unknown unknowns" of complex performance: bottlenecks that emerge from elements and interactions you were not aware of. The text concludes with a detailed case study, showing how a real cloud customer issue was analyzed from start to finish. Coverage includes - Modern performance analysis and tuning: terminology, concepts, models, methods, and techniques - Dynamic tracing techniques and tools, including examples of DTrace, SystemTap, and perf - Kernel internals: uncovering what the OS is doing - Using system observability tools, interfaces, and frameworks - Understanding and monitoring application performance - Optimizing CPUs: processors, cores, hardware threads, caches, interconnects, and kernel scheduling - Memory optimization: virtual memory, paging, swapping, memory architectures, busses, address spaces, and allocators - File system I/O, including caching - Storage devices/controllers, disk I/O workloads, RAID, and kernel I/O - Network-related performance issues: protocols, sockets, interfaces, and physical connections - Performance implications of OS and hardware-based virtualization, and new issues encountered with cloud computing - Benchmarking: getting accurate results and avoiding common mistakes This guide is indispensable for anyone who operates enterprise or cloud environments: system, network, database, and web admins; developers; and other professionals. For students and others new to optimization, it also provides exercises reflecting Gregg's extensive instructional experience.
Author: Vahid Hajipour
Publisher: CRC Press
ISBN: 1000848663
Category : Computers
Languages : en
Pages : 219
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Book Description
The high failure rate of enterprise resource planning (ERP) projects is a pressing concern for both academic researchers and industrial practitioners. The challenges of an ERP implementation are particularly high when the project involves designing and developing a system from scratch. Organizations often turn to vendors and consultants for handling such projects but, every aspect of an ERP project is opaque for both customers and vendors. Unlocking the mysteries of building a large-scale ERP system, The Adventurous and Practical Journey to a Large-Scale Enterprise Solution tells the story of implementing an applied enterprise solution. The book covers the field of enterprise resource planning by examining state-of-the-art concepts in software project management methodology, design and development integration policy, and deployment framework, including: A hybrid project management methodology using waterfall as well as a customized Scrum-based approach A novel multi-tiered software architecture featuring an enhanced flowable process engine A unique platform for coding business processes efficiently Integration to embed ERP modules in physical devices A heuristic-based framework to successfully step into the Go-live period Written to help ERP project professionals, the book charts the path that they should travel from project ideation to systems implementation. It presents a detailed, real-life case study of implementing a large-scale ERP and uses storytelling to demonstrate incorrect and correct decisions frequently made by vendors and customers. Filled with practical lessons learned, the book explains the ins and outs of adopting project methodologies. It weaves a tale that features both real-world and scholarly aspects of an ERP implementation.
Author: Dean Leffingwell
Publisher: Addison-Wesley Professional
ISBN: 0321685407
Category : Computers
Languages : en
Pages : 977
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Book Description
“We need better approaches to understanding and managing software requirements, and Dean provides them in this book. He draws ideas from three very useful intellectual pools: classical management practices, Agile methods, and lean product development. By combining the strengths of these three approaches, he has produced something that works better than any one in isolation.” –From the Foreword by Don Reinertsen, President of Reinertsen & Associates; author of Managing the Design Factory; and leading expert on rapid product development Effective requirements discovery and analysis is a critical best practice for serious application development. Until now, however, requirements and Agile methods have rarely coexisted peacefully. For many enterprises considering Agile approaches, the absence of effective and scalable Agile requirements processes has been a showstopper for Agile adoption. In Agile Software Requirements, Dean Leffingwell shows exactly how to create effective requirements in Agile environments. Part I presents the “big picture” of Agile requirements in the enterprise, and describes an overall process model for Agile requirements at the project team, program, and portfolio levels Part II describes a simple and lightweight, yet comprehensive model that Agile project teams can use to manage requirements Part III shows how to develop Agile requirements for complex systems that require the cooperation of multiple teams Part IV guides enterprises in developing Agile requirements for ever-larger “systems of systems,” application suites, and product portfolios This book will help you leverage the benefits of Agile without sacrificing the value of effective requirements discovery and analysis. You’ll find proven solutions you can apply right now–whether you’re a software developer or tester, executive, project/program manager, architect, or team leader.
Author: Gerardus Blokdyk
Publisher: 5starcooks
ISBN: 9780655931119
Category :
Languages : en
Pages : 314
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Book Description
How do you produce usable, medical device regulated software? Does your organization have a product security function? Software cannot be released for use until validation has been completed? How frequent are computing technology-related medical device failures? Who is responsible for on-line help? This breakthrough IEC 62304 self-assessment will make you the reliable IEC 62304 domain authority by revealing just what you need to know to be fluent and ready for any IEC 62304 challenge. How do I reduce the effort in the IEC 62304 work to be done to get problems solved? How can I ensure that plans of action include every IEC 62304 task and that every IEC 62304 outcome is in place? How will I save time investigating strategic and tactical options and ensuring IEC 62304 costs are low? How can I deliver tailored IEC 62304 advice instantly with structured going-forward plans? There's no better guide through these mind-expanding questions than acclaimed best-selling author Gerard Blokdyk. Blokdyk ensures all IEC 62304 essentials are covered, from every angle: the IEC 62304 self-assessment shows succinctly and clearly that what needs to be clarified to organize the required activities and processes so that IEC 62304 outcomes are achieved. Contains extensive criteria grounded in past and current successful projects and activities by experienced IEC 62304 practitioners. Their mastery, combined with the easy elegance of the self-assessment, provides its superior value to you in knowing how to ensure the outcome of any efforts in IEC 62304 are maximized with professional results. Your purchase includes access details to the IEC 62304 self-assessment dashboard download which gives you your dynamically prioritized projects-ready tool and shows you exactly what to do next. Your exclusive instant access details can be found in your book. You will receive the following contents with New and Updated specific criteria: - The latest quick edition of the book in PDF - The latest complete edition of the book in PDF, which criteria correspond to the criteria in... - The Self-Assessment Excel Dashboard - Example pre-filled Self-Assessment Excel Dashboard to get familiar with results generation - In-depth and specific IEC 62304 Checklists - Project management checklists and templates to assist with implementation INCLUDES LIFETIME SELF ASSESSMENT UPDATES Every self assessment comes with Lifetime Updates and Lifetime Free Updated Books. Lifetime Updates is an industry-first feature which allows you to receive verified self assessment updates, ensuring you always have the most accurate information at your fingertips.
Author: Robert Michon
Publisher: Createspace Independent Publishing Platform
ISBN: 9781546308492
Category :
Languages : en
Pages : 230
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Book Description
The Complete Guide to Software as a Service is truly "everything you need to know about SaaS." This is the only book available today that covers the multiple facets of the SaaS model: functional, operational, technical, security and financial. Starting with the definition and the origins of SaaS, it gives a 360-degree view of the inner workings of a SaaS business. This book is a must read for entrepreneurs who are launching a SaaS company. Learn the six ways to fail your SaaS start-up. It will also guide any software company who is transitioning from an on-premise license model to SaaS. Learn what IT and business functions must evolve when moving from one business model to the next. It also provides useful information and insight to different functional managers within a SaaS company. As well, users of SaaS software will become more knowledgeable clients of their SaaS providers after reading this book. Learn how to "read between the lines" of your SaaS contract and focus on the clauses where you have real negotiating power. For anyone interested in learning more about this important shift in the software industry, this book fills a void that exists today in the world of SaaS.
Author: Scott A. Helmers
Publisher: Microsoft Press
ISBN: 0735699569
Category : Computers
Languages : en
Pages : 783
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Book Description
The quick way to learn Microsoft Visio 2016! This is learning made easy. Get more done quickly with Visio 2016. Jump in wherever you need answers--brisk lessons and colorful screenshots show you exactly what to do, step by step. Get results faster with starter diagrams Diagram processes, organizations, networks, and datacenters Add styles, colors, and themes Enhance diagrams with data-driven visualizations Link to external data sources, websites, and documents Add structure to diagrams with containers, lists, and callouts Validate flowchart, swimlane, and BPMN diagrams Collaborate and publish with Visio Services and Microsoft SharePoint 2016 Look up just the tasks and lessons you need
Author: Shilling
Publisher: Wolters Kluwer
ISBN: 1543811140
Category : Business & Economics
Languages : en
Pages : 1878
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Book Description
The Complete Guide to Human Resources and the Law will help you navigate complex and potentially costly Human Resources issues. You'll know what to do (and what not to do) to avoid costly mistakes or oversights, confront HR problems - legally and effectively - and understand the rules. The Complete Guide to Human Resources and the Law offers fast, dependable, plain English legal guidance for HR-related situations from ADA accommodation, diversity training, and privacy issues to hiring and termination, employee benefit plans, compensation, and recordkeeping. It brings you the most up-to-date information as well as practical tips and checklists in a well-organized, easy-to-use resource. Previous Edition: Complete Guide to Human Resources and the Law, 2018 Edition ISBN 9781454899945
Author: Vladimir Khorikov
Publisher: Simon and Schuster
ISBN: 1638350299
Category : Computers
Languages : en
Pages : 460
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Book Description
"This book is an indispensable resource." - Greg Wright, Kainos Software Ltd. Radically improve your testing practice and software quality with new testing styles, good patterns, and reliable automation. Key Features A practical and results-driven approach to unit testing Refine your existing unit tests by implementing modern best practices Learn the four pillars of a good unit test Safely automate your testing process to save time and money Spot which tests need refactoring, and which need to be deleted entirely Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About The Book Great testing practices maximize your project quality and delivery speed by identifying bad code early in the development process. Wrong tests will break your code, multiply bugs, and increase time and costs. You owe it to yourself—and your projects—to learn how to do excellent unit testing. Unit Testing Principles, Patterns and Practices teaches you to design and write tests that target key areas of your code including the domain model. In this clearly written guide, you learn to develop professional-quality tests and test suites and integrate testing throughout the application life cycle. As you adopt a testing mindset, you’ll be amazed at how better tests cause you to write better code. What You Will Learn Universal guidelines to assess any unit test Testing to identify and avoid anti-patterns Refactoring tests along with the production code Using integration tests to verify the whole system This Book Is Written For For readers who know the basics of unit testing. Examples are written in C# and can easily be applied to any language. About the Author Vladimir Khorikov is an author, blogger, and Microsoft MVP. He has mentored numerous teams on the ins and outs of unit testing. Table of Contents: PART 1 THE BIGGER PICTURE 1 ¦ The goal of unit testing 2 ¦ What is a unit test? 3 ¦ The anatomy of a unit test PART 2 MAKING YOUR TESTS WORK FOR YOU 4 ¦ The four pillars of a good unit test 5 ¦ Mocks and test fragility 6 ¦ Styles of unit testing 7 ¦ Refactoring toward valuable unit tests PART 3 INTEGRATION TESTING 8 ¦ Why integration testing? 9 ¦ Mocking best practices 10 ¦ Testing the database PART 4 UNIT TESTING ANTI-PATTERNS 11 ¦ Unit testing anti-patterns
Author: Dino Esposito
Publisher: Microsoft Press
ISBN: 0133986403
Category : Computers
Languages : en
Pages : 417
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Book Description
A software architect’s digest of core practices, pragmatically applied Designing effective architecture is your best strategy for managing project complexity–and improving your results. But the principles and practices of software architecting–what the authors call the “science of hard decisions”–have been evolving for cloud, mobile, and other shifts. Now fully revised and updated, this book shares the knowledge and real-world perspectives that enable you to design for success–and deliver more successful solutions. In this fully updated Second Edition, you will: Learn how only a deep understanding of domain can lead to appropriate architecture Examine domain-driven design in both theory and implementation Shift your approach to code first, model later–including multilayer architecture Capture the benefits of prioritizing software maintainability See how readability, testability, and extensibility lead to code quality Take a user experience (UX) first approach, rather than designing for data Review patterns for organizing business logic Use event sourcing and CQRS together to model complex business domains more effectively Delve inside the persistence layer, including patterns and implementation.
Author: Kit Sadgrove
Publisher: Routledge
ISBN: 1000152065
Category : Business & Economics
Languages : en
Pages : 774
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Book Description
Risk management and contingency planning has really come to the fore since the first edition of this book was originally published. Computer failure, fire, fraud, robbery, accident, environmental damage, new regulations - business is constantly under threat. But how do you determine which are the most important dangers for your business? What can you do to lessen the chances of their happening - and minimize the impact if they do happen? In this comprehensive volume Kit Sadgrove shows how you can identify - and control - the relevant threats and ensure that your company will survive. He begins by asking 'What is risk?', 'How do we assess it?' and 'How can it be managed?' He goes on to examine in detail the key danger areas including finance, product quality, health and safety, security and the environment. With case studies, self-assessment exercises and checklists, each chapter looks systematically at what is involved and enables you to draw up action plans that could, for example, provide a defence in law or reduce your insurance premium. The new edition reflects the changes in the global environment, the new risks that have emerged and the effect of macroeconomic factors on business profitability and success. The author has also included a set of case studies to illustrate his ideas in practice.
