Working Effectively with Legacy Code
Working Effectively with Legacy Code

Author: Michael Feathers

Publisher: Prentice Hall Professional

Published: 2004-09-22

Total Pages: 457

ISBN-13: 0132931753

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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.

Accelerating Modernization with Agile Integration
Accelerating Modernization with Agile Integration

Author: Adeline SE Chun

Publisher: IBM Redbooks

Published: 2020-07-01

Total Pages: 650

ISBN-13: 0738458368

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The organization pursuing digital transformation must embrace new ways to use and deploy integration technologies, so they can move quickly in a manner appropriate to the goals of multicloud, decentralization, and microservices. The integration layer must transform to allow organizations to move boldly in building new customer experiences, rather than forcing models for architecture and development that pull away from maximizing the organization's productivity. Many organizations have started embracing agile application techniques, such as microservice architecture, and are now seeing the benefits of that shift. This approach complements and accelerates an enterprise's API strategy. Businesses should also seek to use this approach to modernize their existing integration and messaging infrastructure to achieve more effective ways to manage and operate their integration services in their private or public cloud. This IBM® Redbooks® publication explores the merits of what we refer to as agile integration; a container-based, decentralized, and microservice-aligned approach for integration solutions that meets the demands of agility, scalability, and resilience required by digital transformation. It also discusses how the IBM Cloud Pak for Integration marks a significant leap forward in integration technology by embracing both a cloud-native approach and container technology to achieve the goals of agile integration. The target audiences for this book are cloud integration architects, IT specialists, and application developers.

Enterprise Cloud Strategy
Enterprise Cloud Strategy

Author: Barry Briggs

Publisher: Microsoft Press

Published: 2016-01-07

Total Pages: 228

ISBN-13: 1509301992

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How do you start? How should you build a plan for cloud migration for your entire portfolio? How will your organization be affected by these changes? This book, based on real-world cloud experiences by enterprise IT teams, seeks to provide the answers to these questions. Here, you’ll see what makes the cloud so compelling to enterprises; with which applications you should start your cloud journey; how your organization will change, and how skill sets will evolve; how to measure progress; how to think about security, compliance, and business buy-in; and how to exploit the ever-growing feature set that the cloud offers to gain strategic and competitive advantage.

Azure Strategy and Implementation Guide
Azure Strategy and Implementation Guide

Author: Peter De Tender

Publisher: Packt Publishing Ltd

Published: 2020-06-09

Total Pages: 163

ISBN-13: 1838989536

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Learn Azure’s cloud capabilities with the help of this introductory guide to employing Azure for your cloud infrastructure needs. Key FeaturesGet a clear overview of Azure's capabilities and benefits, and learn how to get started efficientlyDevelop the ability to opt for cloud architecture and design that best fits your organizationLeverage Azure opportunities for cost savings and optimizationBook Description Microsoft Azure is a powerful cloud computing platform that offers a multitude of services and capabilities for organizations of any size moving to a cloud strategy. Azure Strategy and Implementation Guide Third Edition encapsulates the entire spectrum of measures involved in Azure deployment that includes understanding Azure fundamentals, choosing a suitable cloud architecture, building on design principles, becoming familiar with Azure DevOps, and learning best practices for optimization and management. The book begins by introducing you to the Azure cloud platform and demonstrating the substantial scope of digital transformation and innovation that can be achieved by leveraging Azure’s capabilities. The guide further acquaints you with practical insights on application modernization, Azure Infrastructure as a Service (IaaS) deployment, infrastructure management, key application architectures, best practices of Azure DevOps, and Azure automation. By the end of this book, you will be proficient in driving Azure operations right from the planning and cloud migration stage to cost management and troubleshooting. What you will learnDeploy and run Azure infrastructure servicesCarry out detailed planning for migrating applications to the cloud with AzureMove underlying code class structure into a serverless modelUse a gateway to isolate your services and applicationsDefine roles and responsibilities in DevOpsImplement release & deployment coordination and automationWho this book is for Azure Strategy and Implementation Guide Third Edition is designed to benefit Azure architects, cloud solution architects, Azure developers, Azure administrators, and anyone who wants to develop an expertise in operating and administering the Azure cloud. A basic familiarity with operating systems and databases will help you grasp the concepts covered in this book.

DoD Digital Modernization Strategy
DoD Digital Modernization Strategy

Author: Department of Defense

Publisher:

Published: 2019-07-12

Total Pages: 74

ISBN-13: 9781081748562

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The global threat landscape is constantly evolving and remaining competitive and modernizing our digital environment for great power competition is imperative for the Department of Defense. We must act now to secure our future.This Digital Modernization Strategy is the cornerstone for advancing our digital environment to afford the Joint Force a competitive advantage in the modern battlespace.Our approach is simple. We will increase technological capabilities across the Department and strengthen overall adoption of enterprise systems to expand the competitive space in the digital arena. We will achieve this through four strategic initiatives: innovation for advantage, optimization, resilient cybersecurity, and cultivation of talent.The Digital Modernization Strategy provides a roadmap to support implementation of the National Defense Strategy lines of effort through the lens of cloud, artificial intelligence, command, control and communications and cybersecurity.This approach will enable increased lethality for the Joint warfighter, empower new partnerships that will drive mission success, and implement new reforms enacted to improve capabilities across the information enterprise.The strategy also highlights two important elements that will create an enduring and outcome driven strategy. First, it articulates an enterprise view of the future where more common foundational technology is delivered across the DoD Components. Secondly, the strategy calls for a Management System that drives outcomes through a metric driven approach, tied to new DoD CIO authorities granted by Congress for both technology budgets and standards.As we modernize our digital environment across the Department, we must recognize now more than ever the importance of collaboration with our industry and academic partners. I expect the senior leaders of our Department, the Services, and the Joint Warfighting community to take the intent and guidance in this strategy and drive implementation to achieve results in support of our mission to Defend the Nation.

Cloud Computing for Business -The Open Group Guide
Cloud Computing for Business -The Open Group Guide

Author: Chris Harding

Publisher: Van Haren

Published: 2020-06-11

Total Pages: 249

ISBN-13: 9087536585

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The Open Group s long awaited guidance on Cloud is now published! Cloud Computing is the major evolution today in computing. It describes how the internet has enabled organizations to access computing resources as a commodity and when needed in much the same way as households access household utilities. For Enterprises with complex and expensive IT systems, the idea of paying on demand for someone else to provide IT services is attractive. This authoritative guide is specifically designed for business managers to understand the benefits that can be achieved; including Improved timeliness and agility Resource optimisation Control and reduction of costs More innovation Increased security Decreased exposure to risk Demonstration of compliance Improved quality of support Improved business continuity resource The authoritative title, published by the globally respected Open Group, gives Managers reliable and independent guidance that will help to support decisions and actions in this key operational area.

Solutions Architect's Handbook
Solutions Architect's Handbook

Author: Saurabh Shrivastava

Publisher: Packt Publishing Ltd

Published: 2020-03-21

Total Pages: 475

ISBN-13: 183864783X

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From fundamentals and design patterns to the different strategies for creating secure and reliable architectures in AWS cloud, learn everything you need to become a successful solutions architect Key Features Create solutions and transform business requirements into technical architecture with this practical guide Understand various challenges that you might come across while refactoring or modernizing legacy applications Delve into security automation, DevOps, and validation of solution architecture Book DescriptionBecoming a solutions architect gives you the flexibility to work with cutting-edge technologies and define product strategies. This handbook takes you through the essential concepts, design principles and patterns, architectural considerations, and all the latest technology that you need to know to become a successful solutions architect. This book starts with a quick introduction to the fundamentals of solution architecture design principles and attributes that will assist you in understanding how solution architecture benefits software projects across enterprises. You'll learn what a cloud migration and application modernization framework looks like, and will use microservices, event-driven, cache-based, and serverless patterns to design robust architectures. You'll then explore the main pillars of architecture design, including performance, scalability, cost optimization, security, operational excellence, and DevOps. Additionally, you'll also learn advanced concepts relating to big data, machine learning, and the Internet of Things (IoT). Finally, you'll get to grips with the documentation of architecture design and the soft skills that are necessary to become a better solutions architect. By the end of this book, you'll have learned techniques to create an efficient architecture design that meets your business requirements.What you will learn Explore the various roles of a solutions architect and their involvement in the enterprise landscape Approach big data processing, machine learning, and IoT from an architect s perspective and understand how they fit into modern architecture Discover different solution architecture patterns such as event-driven and microservice patterns Find ways to keep yourself updated with new technologies and enhance your skills Modernize legacy applications with the help of cloud integration Get to grips with choosing an appropriate strategy to reduce cost Who this book is for This book is for software developers, system engineers, DevOps engineers, architects, and team leaders working in the information technology industry who aspire to become solutions architect professionals. A good understanding of the software development process and general programming experience with any language will be useful.

Kill It with Fire
Kill It with Fire

Author: Marianne Bellotti

Publisher: No Starch Press

Published: 2021-04-06

Total Pages: 250

ISBN-13: 1718501196

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Kill It with Fire chronicles the challenges of dealing with aging computer systems, along with sound modernization strategies. How to survive a legacy apocalypse “Kill it with fire,” the typical first reaction to a legacy system falling into obsolescence, is a knee-jerk approach that often burns through tons of money and time only to result in a less efficient solution. This book offers a far more forgiving modernization framework, laying out smart value-add strategies and proven techniques that work equally well for ancient systems and brand-new ones. Renowned for restoring some of the world’s oldest, messiest computer networks to operational excellence, software engineering expert Marianne Bellotti distills key lessons and insights from her experience into practical, research-backed guidance to help you determine when and how to modernize. With witty, engaging prose, Bellotti explains why new doesn’t always mean better, weaving in illuminating case studies and anecdotes from her work in the field. You’ll learn: Where to focus your maintenance efforts for maximum impact and value How to pick the right modernization solutions for your specific needs and keep your plans on track How to assess whether your migrations will add value before you invest in them What to consider before moving data to the cloud How to determine when a project is finished Packed with resources, exercises, and flexible frameworks for organizations of all ages and sizes, Kill It with Fire will give you a vested interest in your technology’s future.