Bøger udgivet af APress

Explore software web application architecture, API testing, coding practices, and the standards for better API test automation development and management. This book focuses on aspiring software testing engineers currently working in API testing, and those starting their journey in the field of software testing. You'll begin with an introduction to API testing and software web applications involving APIs. The book then moves on to the authentication standards used in the software industry, and the tools, the frameworks, and the libraries used in API testing. As the book progresses, you'll learn about the test pyramid, how to test an API, what makes a good test script, and various coding guidelines. Finally, you get to write your own API test script.  Learn API Testing is your pathway to understanding a typical software web application, its requests and responses, and the properties of a good test script. What You'll learnExamine practices, standards, and guidelines for effective test automationWork with different tools like RestAssured, Curl, and PostmanUnderstand API testing paradigm (internal/external APIs, CDCT)Review a case study on the industrial software API testing processOrganize a test frameworkWho This Book Is For API testing aspirants, developers/architects, project managers, and non-technical team members who may want to understand how APIs are being tested.

Program the Raspberry Pi Pico, the latest microcontroller board from raspberrypi.org, with MicroPython. This book will take you on a tour of the Raspberry Pi Pico, including how to get started using the microcontroller, seeing which alternative microcontrollers are available, and how to connect and run simple code examples. You'll program example projects in MicroPython using Python on your PC as a learning platform. Then build your hardware skillset working with electronics and breadboard circuits. You'll implement example projects with all steps explained, including hardware connections and executing the project. Then apply them to real-world, approachable projects using the accessible Raspberry Pi Pico!  The book shows how the cloud is used for IoT data and find out what popular cloud systems currently exist for IoT. Finally, you'll use ThingSpeak for hosting IoT data including connecting your Pico to the Internet.     Beginning MicroPython with the Raspberry Pi Pico allows you to build up your skills to more advanced IoT projects and Cloud systems! What You Will LearnBuild valuable programming skills with MicroPython Explore the Raspberry Pi Pico and similar boardsDevelop your own electronics and IOT projectsIncorporate the Grove component system with the Raspberry Pi PicoWho This Book Is ForBeginners interested in learning to work with the Raspberry Pi Pico using MicroPython on microcontrollers with little to no experience in programming, hardware, or electronics. The book should also appeal to those who wanting to gain experience with building electronic solutions with microcontrollers.

Using real life examples, learn how open source projects are consumed and explore the nuances within different industries in adopting open source technologies.After gaining a basic understanding of open source and open standards, understand how licensing helps turn community code into an enterprise worthy component. It also helps you understand future governance of the open source software. Once in effect, continuous security becomes a challenge for open source components so we'll examine its ongoing security aspects.  This book will also cover different open source domains and industries and discuss how an enterprise can transform itself by applying key open source principles. In the end Getting Started with Open Source Technologies will provide a 360-degree view of open source and show you how to apply it. What You'll LearnUnderstand current trends in open source and why it is relevant todayGain entry into the open source world to properly license your source codeReview open source usage within different industries and apply the learnings to your enterprisesEvangelize and create advocates in open source communitiesWho This Book Is ForEnterprises (Developers/Operators/Management) and academics who want to get a 360-degree view of open source no matter how early or advanced they are in their adoption of any open source technology.

Work with Git and avoid dangerous mishaps in this popular, cooperative environment, even if you have no software engineering background or previous experience with Git. This book will teach you the basic principles of working cooperatively in Git with software engineers and other team members to handle issues the GUI can't. You'll start by learning the fundamentals of the Git environment and commands. Concepts such as commits, branches, and Git organization are discussed. To avoid bogging you down with software terminology, advanced topics like setting up a Git server are ignored. Descriptions are worded to keep you away from technical specifications. Examples are presented in easily digestible text files and focus on realistic scenarios and concerns without delving into one-off or advanced, oddball situations. You can see the results without focusing on the jargon. Once you understand the basics of Git, you'll design a digital system circuit using a computer aided design (CAD) tool. You'll learn to collaborate effectively through Git between team members, incorporate continuous development philosophy, work with project documentation, and build a solid project structure. Finally, you'll see how Git can also ease maintenance tasks and provide CAD designers unique opportunities.  What You'll LearnWork with the Git-bash environmentIncorporate continuous development philosophyDiscover the links between Git and modern CAD programsWho This Book Is ForElectrical engineers active in device manufacturing and other engineers and students unfamiliar with Git.

This book focuses on the Python-based tools and techniques to help you become highly productive at all aspects of typical data science stacks such as statistical analysis, visualization, model selection, and feature engineering.You'll review the inefficiencies and bottlenecks lurking in the daily business process and solve them with practical solutions. Automation of repetitive data science tasks is a key mindset that is promoted throughout the book. You'll learn how to extend the existing coding practice to handle larger datasets with high efficiency with the help of advanced libraries and packages that already exist in the Python ecosystem. The book focuses on topics such as how to measure the memory footprint and execution speed of machine learning models, quality test a data science pipelines, and modularizing a data science pipeline for app development. You'll review Python libraries which come in very handy for automating and speeding up the day-to-day tasks.  In the end, you'll understand and perform data science and machine learning tasks beyond the traditional methods and utilize the full spectrum of the Python data science ecosystem to increase productivity.  What You'll Learn Write fast and efficient code for data science and machine learningBuild robust and expressive data science pipelines Measure memory and CPU profile for machine learning methods Utilize the full potential of GPU for data science tasks Handle large and complex data sets efficiently Who This Book Is For Data scientists, data analysts, machine learning engineers, Artificial intelligence practitioners, statisticians who want to take full advantage of Python ecosystem.

Refer to the practical guidance provided in this book to develop Salesforce custom applications in a more agile, collaborative, and resilient way using Salesforce Developer Experience (DX). You will learn how to use the Salesforce Command Line Interface (CLI) to simplify working with projects, metadata, data and orgs. The CLI integrates with your development tools of choice such as Visual Studio Code, and CI/CD tools to implement DevOps pipelines. Readers will also gain an understanding of the package development model, which improves application quality and maintainability by grouping metadata into highly cohesive, loosely coupled containers.Salesforce DX supports application development throughout the entire development lifecycle where a version control system, rather than a Salesforce org, is the source of truth. It became generally available in late 2017 and has now reached a stage of feature richness and stability that it is becoming more widely adopted.Beginning Salesforce DX provides development teams with practical, how-to examples of using Salesforce DX that go beyond the Salesforce documentation. Commands and their parameters are described, including any gotchas, and the outcome of the commands on a Salesforce org is explained. What You Will Learn How to setup a Salesforce DX development environment Understand the key Salesforce DX concepts and the Salesforce CLI Work with Dev Hubs, projects, orgs, metadata and version control systems Improve quality with test users and test data Bootstrap pro-code development with templates Apply Salesforce DX to an end-to-end package development projectWho This Book Is ForInternal teams developing custom Salesforce applications for an individual customer, or those creating commercial applications for distribution via the Salesforce AppExchange enterprise marketplace. All team disciplines will benefit from understanding and applying Salesforce DX, including pro-code, low-code and no-code developers, testers, release managers, DevOps engineers and administrators. A secondary audience includes those needing to understand key concepts when establishing or evolving an organisation's application lifecycle management capability, such as capability leaders, architects, consultants and business analysts.

Transition from a back-end developer to a full-stack developer with knowledge of all the dimensions of web application development, namely, front-end, back-end and server-side software. This book provides a comprehensive overview of Streamlit, allowing developers and programmers of all backgrounds to get up to speed in as little time as possible. Streamlit is a pure Python web framework that will bridge the skills gap and shorten development time from weeks to hours. This book walks you through the complete cycle of web application development, from an introductory to advanced level with accompanying source code and resources. You will be exposed to developing basic, intermediate, and sophisticated user interfaces and subsequently you will be acquainted with data visualization, database systems, application security, and cloud deployment in Streamlit.  In a market with a surplus demand for full stack developers, this skill set could not possibly come at a better time. In one sentence, Streamlit is a means for the empowerment of developers everywhere and all stand to gain from it. What You'll LearnMutate big data in real-timeVisualize big data interactivelyImplement web application security and privacy protocols Deploy Streamlit web applications to the cloud using Streamlit, Linux and Windows servers Who is this Book for?Developers with solid programming experience wanting to learn Streamlit; Back-end developers looking to upskill and transition to become a full-stack developers; Those who wish to learn and become more acquainted with data visualization, database systems, security and cloud deployment with Steamlit

Boost your iOS developer career by learning from real-life examples and start writing code for one of the most successful platforms ever. No matter if you're an experienced developer or just a beginner, you'll find something new and something useful for your future projects here.    All of the recipes in this book are taken from real-life commercial projects that have been approved by Apple and published on the App Store. You won't write "e;Hello, world!"e; and similar programs. Instead you'll see how to parse different data formats; run JavaScript code right inside your iOS app; and enhance storyboard editor with several simple extensions. You'll make beautiful modern-looking dialogs with blurs, shadows and rounded corners using only a few lines of code, and safely convert data after analyzing text strings. Go on to animate your layout and get your app shored up to crash as little as possible    Each recipe offers a code snippet to copy and paste to your project as a tool to boost your knowledge, as well as, create plug-and-play features. Each of recipe shows the description for each line of code while explaining the logic of it, contains references to documentation, and gives you an opportunity to modify or write something similar that fits your project better.    A good piece of code should not work but also be short, clear, and stable. And that combo will be our priority in these code recipes. Well-written code snippets must run in any environment and be easily transferrable from one project to another. Most of the provided recipes will migrate from one project to another with little to no changes at all, and with years of real-world application have proven themselves to be useful and stable. Dive into the world of iOS development and write clear, functioning, and safe Swift code!  What You'll LearnParse, convert, and print Swift data   Develop stunning UIs quickly  Write effective and portable Swift extensions  Make your code cleaner and safer  Who This Book Is ForBeginners in iOS development who want to improve their skills with real-life examples. Developers switching to mobile development from other areas. All iOS developers looking for code recipes.

Dive into key topics in network architecture implemented with the Google-backed open source Go programming language. Networking topics such as data serialization, application level protocols, character sets and encodings are discussed and demonstrated in Go. This book has been updated to the Go version 1.18 which includes modules, generics, and fuzzing along with updated and additional examples. Beyond the fundamentals, Network Programming with Go, Second Edition covers key networking and security issues such as HTTP protocol changes, validation and templates, remote procedure call (RPC) and REST comparison, and more. Additionally, authors Ronald Petty and Jan Newmarch guide you in building and connecting to a complete web server based on Go. Along the way, use of a Go web toolkit (Gorilla) will be employed. This book can serve as both an essential learning guide and reference on networking concepts and implementation in Go.  Free source code is available on Github for this book under Creative Commons open source license.What You Will Learn Perform network programming with Go (including JSON and RPC) Understand Gorilla, the Golang web toolkit, and how to use it Implement a microservice architecture with Go Leverage Go features such as generics, fuzzing Master syscalls and how to employ them with Go Who This Book Is For Anyone interested in learning networking concepts implemented in modern Go. Basic knowledge in Go is assumed, however, the content and examples in this book are approachable with modest development experience in other languages.

Take a problem-solution approach for programming enterprise Java or Java EE applications and microservices for cloud-based solutions, enterprise database applications, and even small business web applications. Java EE to Jakarta EE 10 Recipes provides effective, practical, and proven code snippets that you can immediately use to accomplish just about any task that you may encounter. You can feel confident using the reliable solutions that are demonstrated in this book in your personal or corporate environment. Java EE was made open source under the Eclipse Foundation, and Jakarta EE is the new name for what used to be termed the Java Platform, Enterprise Edition. This book helps you rejuvenate your Java expertise and put the platform's latest capabilities to use for quickly developing robust applications. If you are new to Jakarta EE, this book will help you learn the features of the platform and benefit from one of the most widely used and powerful technologies available for cloud-native enterprise application development today.  Examples in this book highlight Jakarta EE's capabilities, helping you to build streamlined and reliable applications using the latest in Java technologies. The book takes a problem-solution approach in which each section introduces a common programming problem, showing you how to solve that problem in the best possible way using the latest features in Jakarta EE. Solutions in the form of working code examples are presented that you can download and use immediately in your own projects. Clear descriptions are provided to help you understand and learn to build further on the solutions provided.  This is the ideal book for the code-focused programmer interested in keeping up with the future of enterprise development on the Java Platform.  What You Will LearnDevelop enterprise java applications using the latest open-source Jakarta EE platformCreate great-looking user interfaces using Jakarta Servlets, Jakarta Server Pages, Jakarta Server Faces and the Eclipse Krazo framework (an implementation of Jakarta MVC)Build database applications using Jakarta NoSQL, Jakarta Persistence, and Jakarta Enterprise Beans.Develop enterprise grade applications using Context & Dependency Injection, and Jakarta RESTFul web servicesAutomate testing through cohesive test suites built on Arquillian for Jakarta EE applicationsBuild loosely coupled distributed applications using Jakarta MessagingDeploy microservices applications in cloud environments using DockerSecure applications utilizing the Jakarta EE Security API Who This Book Is ForJava developers interested in quickly finding effective and proven solutions without reading through a lengthy manual and scrubbing for techniques.

Get started with blockchain development with this step-by-step guide. This book takes you all the way from installing requisite software through writing, testing, and deploying smart contracts.Getting Started with Ethereum delves into technologies most closely associated with Ethereum, such as IPFS, Filecoin, ENS, Chainlink, Truffle, Ganache, OpenZeppelin, Pinata, Fleek, Infura, Metamask, and Opensea. Author Davi Bauer walks you through project creation, how to compile projects and contracts, configure networks, and deploy smart contracts on blockchains. He then covers smart contracts, including deploying and verifying them. This book approaches blockchain in a way that allows you to focus on the topic that most interests you, covering Ethereum-related technologies broadly and not just focusing on Solidity.This hands-on guide offers a practical rather than conceptual approach get you coding. Upon completing this book, you will be able to confidently develop and deploy smart contracts on blockchains.Source code can be found at https://github.com/Apress/getting-started-ethereum.What You Will LearnUnderstand tokenization of assets, including NFTs, using EthereumHost censorship-resistant applications using IPFSDeploy on second-layer blockchains using PolygonDeploy smart contracts with multiple technologies around EthereumWho Is This Book ForOff-chain developers who want to migrate to on-chain development starting with the Ethereum blockchain and the technologies around it. Prior programming knowledge and conceptual understanding of blockchain is necessary.

Produce high-quality, cross-platform apps with user experiences almost identical to pure native apps. When evaluating cross-platform frameworks, developers make an assumption that quality will be compromised. But that doesn't have to be true. The principles in this book will show you how to meet quality expectations both from engineering and consumer standpoints. You'll also realize the ideal of a greater front end. That means your whole front-end team, including app side and web side, will be optimized. The shared knowledge base as well as mobilization potential give more flexibility and strength in all front-end facets without the need of increasing team sizes.The market has seen a large amount of high quality React Native apps and successful stories about them. Nevertheless, under optimized apps and unsuccessful stories shadow. The fundamental difference between the two opposing groups is understanding. Discover the critical points in the React and React Native architecture, and develop general best practices that can lead to consistently developing 0 crash, 5 star apps based on an understanding of fundamentals.What You'll LearnMeasure and define successful app designCreate animation based on user needReduce performance bottleneck throughout your appsWho This Book Is ForMobile developers who want to expand their front end skill set, and web developers who want to enter mobile development.

Write efficient, smart, and optimized code for containerized applications on public and private clouds at a generic level. This book shows you how to set up microservices that are robust, scalable, and capable of running on GKE (Google Kubernetes Service), AKS (Azure Kubernetes Service), ECS (Elastic Container Service), or even on a vanilla K8S cluster. The book covers the nuts and bolts of container orchestration engines (COEs) and explains how to install and configure them. It also covers creation and deployment of a sample application on COEs. You will learn how to integrate different applications such as OAuth and how to test them and secure them using Istio Citadel. You also will be taught how to create HPA rules for microservices and scale only those microservices that require it, making your stack intelligent. In the concluding chapter, the book explains how to build a SaaS solution from scratch, running on the cloud with automated deployments accessed publicly via a secured ingress K8S controller.By the end of the book, you will have a good understanding of developing microservices and how to design and create a software solution on the cloud.What You Will LearnBuild software on Kubernetes in the most optimized wayInteract with Kubernetes using client SDKs in Python, Go, nodejs, etc.Create a testing and deployment CI/CD system for software stacksSecure your application using Istio, without writing codeAccess microservices using ingress controllers and scale them using HPA rulesWho This Book Is For Software and system engineers and developers

Design system solutions using modern architectural patterns and practices. This book discusses methods to keep a system responsive, even when it is being constantly updated, extending a system's functionality without changing the core code, methods of maintaining data history, and designing a distributed transactional system.This book will guide you in understanding how a software solution is designed using different architectural processes and scenarios. Each scenario explains if and why a software solution is required to resolve a given issue, and discusses possible architectural approaches to solve the problem. You will learn specific implementations of software architecture for each case along with different approaches to achieve the solutions. Each chapter is structured as a real-world requirement from a client and describes a process to meet that requirement. After reading this book, you should have a high-level understanding of the architectural patterns used in the book, and you should have a methodology for approaching system design.What You Will LearnUnderstand design principles and considerations for various stages of software developmentTranslate patterns into code samplesCreate a blueprint for approaching system designUnderstand architectural patterns: CQRS, event sourcing, distributed systems, distributed transactions, and plug-in architectureWho This Book Is ForDevelopers who wish to move into architecture, and junior software architects also will find the book useful

Build your own system firmware. This book helps you understand system firmware architecture and minimalistic design, and provides a specialized knowledge of firmware development. The book includes guidance on understanding the system firmware build procedure, integrating pieces of firmware and allowing configuration, updating system firmware, creating a development infrastructure for allowing multi-party collaboration in firmware development, and gaining advanced system firmware debugging knowledge.After reading the book you will be able to assume better control while developing your own firmware and know how to interact with native hardware while debugging. You will understand key principles for future firmware development using newer technology, and be ready for the introduction of modern safe programming languages for firmware development. Detailed system firmware development case studies using a futuristic approach cover:Future scalable system firmware development modelsTypes of firmware development (system firmware, device firmware, manageability firmware)Tools and their usage while creating system firmwareHow to build infrastructure for seamless firmware development using a multi-party development modelDebugging methodologies used during various phases of firmware product developmentSetting up key expectations for future firmware, including thinner firmware footprints and faster execution time, easier configuration, and increased transparent securityWhat You Will LearnUnderstand the system firmware working model of the futureGain knowledge to say goodbye to proprietary firmware for different types of firmware developmentKnow the different types of tools required for creating firmware source code before flashing the final image into the boot device of the embedded systemDevelop skills to understand the failure in firmware or in the system and prepare the debugging environment to root cause the defectsDiscern the platform minimal security requirementOptimize the system firmware boot time based on the target hardware requirementComprehend the product development cycle using open source firmware developmentWho This Book Is For                                             Embedded firmware and software engineers migrating the product development from closed source firmware to open source firmware for product adaptation needs as well as engineers working for open source firmware development. A secondary audience includes engineers working on various bootloaders such as open source firmware, UEFI, and Slim Bootloader development, as well as undergraduate and graduate students working on developing firmware skill sets.

Take a deep look at accessibility as it applies to mobile and wearables. This book covers topics within the accessibility domain that are rarely covered or understood, despite the fact that nearly half of the world's population uses smartphones. Moreover, by 2025, 72% of smartphone users are expected to only use smartphones to access the internet. And yet, accessibility is often an afterthought instead of a core principle of product development. This book changes that.You will begin by exploring the current landscape and policy frameworks, looking at the software product lifecycle and how to embed inclusion from the start.  You'll learn the nuances of mobile accessibility as it applies to mobile devices, wearables, and IoT. From there you'll move onto automated testing, accessibility and inclusion, and the next frontiers of emerging technology including AR and VR. There will be notes at the end of programming examples to help those in orthogonal roles, such as project management, understand the basics and the language to  better communicate with their engineering counterparts.Over 1 billion people in the world live with some form of disability so it's imperative you devise a comprehensive game plan to make your digital products accessible for all. Beyond Accessibility Compliance is your guide to understanding the current landscape of assistive technology and how emerging techniques are changing the way we think about personalization and accessibility.What You'll LearnSee how people with the most common forms of disabilities use digital productsReview the basics of the product development lifecycle and how to embed accessibility Explore tangible answers as to how accessibility pertains to unique rolesUnderstand the difference between compliance and usabilityMake data visualizations accessible for blind usersImplement code-level changes to address gaps in accessibility Build a campus programs and course material inclusive for people with disabilities Who This Book Is ForCurrent developers, designers, and others building technology products with basic knowledge of front-end development.  This book is also suitable for students in computer science, engineering, HCI,  and related fields. Sections that are not engineering-specific are applicable to design, user research, communication, and business students who are looking to pursue careers in technology. 

Find the right bootloader solution or combination of firmware required to boot a platform considering its security, product features, and optimized boot solutions. This book covers system boot firmware, focusing on real-world firmware migration from closed source to open source adaptation.The book provides an architectural overview of popular boot firmware. This includes both closed sourced and/or open source in nature, such as Unified Extensible Firmware Interface (UEFI), coreboot, and Slim Bootloader and their applicable market segments based on product development and deployment requirements. Traditional system firmware is often complex and closed sourced whereas modern firmware is still a kind of hybrid between closed and open source. But what might a future firmware model look like? The most simplistic boot firmware solution uses open source firmware development. This book helps you decide how to choose the right boot firmware for your products and develop your own boot firmware using open source. Coverage includes:Why open source firmware is used over closed sourceThe pros and cons of closed and open source firmwareA hybrid work model: for faster bring-up activity using closed source, binary integrated with open source firmwareWhat You Will LearnUnderstand the architecture of standard and popular boot firmwarePick the correct bootloader for your required target hardwareDesign a hybrid workflow model for the latest chipset platformUnderstand popular payload architectures and offerings for embedded systemsSelect the right payload for your bootloader solution to boot to the operating systemOptimize the system firmware boot time based on your target hardware requirementKnow the product development cycle using open source firmware developmentWho This Book Is For                                                 Embedded firmware and software engineers migrating the product development from closed source firmware to open source firmware for product adaptation needs as well as engineers working for open source firmware development. A secondary audience includes engineers working on various bootloaders such as open source firmware, UEFI, and Slim Bootloader development, as well as undergraduate and graduate students working on developing firmware skill sets.

Welcome to the most comprehensive foundational guide available on the topic of C# coding and .NET. This book goes beyond "e;do this, to achieve this"e; to drill down into the core stuff that makes a good developer, great. This expanded 11th edition delivers loads of new content on Entity Framework, Razor Pages, Web APIs and more. You will find the latest C# 10 and .NET 6 features served up with plenty of "e;behind the curtain"e; discussion designed to expand developers' critical thinking skills when it comes to their craft. Coverage of ASP.NET Core, Entity Framework Core, and more sits alongside the latest updates to the new unified .NET platform, from performance improvements to Windows Desktop apps on .NET 6, updates in XAML tooling, and expanded coverage of data files and data handling. Going beyond the latest features in C# 10, all code samples are rewritten for this latest release.Dive in and discover why this essential classic is a favorite of C# developers worldwide. Gain a solid foundation in object-oriented development techniques, attributes and reflection, generics and collections, and numerous advanced topics not found in other texts (such as CIL opcodes and emitting dynamic assemblies). Pro C# 10 with .NET 6 will build your coding confidence putting C# into practice, and exploring the .NET universe and its vast potential on your own terms.What You Will LearnExplore C# 10 features and updates in records and record structs, global and implicit using directives, file level namespaces, extended property patterns, and moreDevelop applications with C# and modern frameworks for services, web, and smart client applicationsHit the ground running with ASP.NET Core web applications using MVC and Razor Pages, including view components, custom tag helpers, custom validation, GDPR support, and areasBuild ASP.NET RESTful services complete with versioning, enhanced swagger, and basic authenticationEmbrace Entity Framework Core for building real-world, data-centric applications, with deeply expanded coverage new to this edition including SQL Server temporal table supportDive into Windows Desktop Apps on .NET 6 using Windows Presentation FoundationUnderstand the philosophy behind .NETDiscover the new features in .NET 6, including single file applications, smaller container images, and moreWho This Book Is ForDevelopers of any level who want to either learn C# and .NET or want to take their skills to the next level."e;Amazing! Provides easy-to-follow explanations and examples. I remember reading the first version of this book; this is a 'must-have' for your collection if you are learning .NET!"e; - Rick McGuire, Senior Application Development Manager, Microsoft"e;Phil is a journeyman programmer who brings years of experience and a passion for teaching to make this fully revised and modernized 'classic' a 'must-have'. Any developer who wants full-spectrum, up-to-date coverage of both the C# language and how to use it with .NET and ASP.NET Core should get this book."e;- Brian A. Randell, Partner, MCW Technologies and Microsoft MVP

Examine select retail business scenarios to learn basic mathematics, as well as probability and statistics required to analyze big data. This book focuses on useful and imperative applied analytics needed to build a retail business and explains mathematical concepts essential for decision making and communication in retail business environments.  Everyone is a buyer or seller of products these days whether through a physical department store, Amazon, or their own business website.  This book is a step-by-step guide to understanding and managing the mechanics of markups, markdowns, and basic statistics, math and computers that will help in your retail business. You'll tackle what to do with data once it is has accumulated and see how to arrange the data using descriptive statistics, primarily means, median, and mode, and then how to read the corresponding charts and graphs. Analytics for Retail is your path to creating visual representations that powerfully communicate information and drive decisions. What You'll LearnReview standard statistical concepts to enhance your understanding of retail dataUnderstand the concepts of markups, markdowns and profit margins, and probability  Conduct an A/B testing email campaign with all the relevant analytics calculated and explainedWho This Book Is ForThis is a primer book for anyone in the field of retail that needs to learn or refresh their skills or for a reader who wants to move in their company to a more analytical position. 

Understand continuous integration (CI), continuous delivery, and continuous deployment (CD) with Jenkins. These processes allow users as well as administrators to catch problems as soon as they get injected into software systems.This book starts with an introduction to Jenkins and covers its architecture and role in CI/CD. The basics are covered, including installing and configuring Jenkins. Tool configuration and plugins are discussed as well as available security measures such as credentials. You will learn  what is meant by Job in Jenkins, its types, sections, and much more. You will look at Java API: projects, jobs, configuration. The concluding chapters take you through creating pipelines, their role in managing web apps, and distributed pipelines. The book also covers unit testing using TestNG as well as end-to-end testing using Selenium Python as a part of building a life cycle and setting up Jenkins on different physical and Docker environments as well as Jenkins integration with cloud environments such as AWS. And you will learn how to create reusable libraries for use in Jenkins Pipeline and control Jenkins servers using Jenkins CLI and REST APIs. The new Jenkins Blue Ocean also is covered.The book helps you understand CI/CD implementation using Jenkins from scratch in your projects and prepare for end-to-end DevOps practices.What You Will LearnApply Jenkins to create end-to-end pipelinesIntegrate Jenkins with AWS, Docker, Git, and many more toolsUse Selenium automation for end-to-end testingCreate distributed pipelinesWho Is This Book ForDevelopers and test automation professionals who are involved in creating CI/CD pipelines as well as prospective DevOps aspirants who want to make their way ahead as professionals

Enhance and upgrade your Excel knowledge with this comprehensive guide to formulas in Excel. Over 150 of the most useful Excel functions are covered with numerous practical examples of their use. This book is fully updated and includes examples of the most recently released functions in 2022. It is written in a manner that you can read it cover-to-cover or pick it up and learn something new in just 5 minutes.The book begins with a primer on Excel formulas and functions. Starting from a basic level, but diving into intricate detail and building a solid understanding of the fundamentals. It may not always be sexy, but learning why, in addition to how, is important to truly understanding Excel formulas. Having strong fundamentals is the most advanced skill.The book covers all the most popular functions in Excel including VLOOKUP, SUMPRODUCT, COUNTIFS, MATCH, SORT and so much more. You will learn how to return multiple results with a single formula. Harness the power of the dynamic array engine and functions such as SEQUENCE, SORTBY, UNIQUE, XLOOKUP and FILTER to create top N Lists, models and reports that would seem impossible without array formulas. In the final chapter, we discover the amazing LAMBDA function in Excel. Create your own Excel functions to simplify future Excel formulas and share them with others. In this book, the formulas are not only written to return values to the grid, but also for use with other Excel features such as charts and Conditional Formatting, to take them to another level. Practice files are provided to follow all examples shown in the book.What Will You Learn Gain intimate knowledge of Excel formulas Understand efficient and practical use of Defined Names and TablesMaster the most popular functions of Excel - VLOOKUP, COUNTIFS, MATCH, SUMPRODUCT, and so much moreLearn to return multiple results from a single formula with the magical array formulas. Know the best lookup functions for dynamic spreadsheetsKnow true power of classic Excel functions such as IF, SUM, and INDEXUse new Excel functions including XLOOKUP, VSTACK, LET, and LAMBDA Who Is This Book ForExcel users who are familiar with formulas but want to improve their current skill level

Search Experience Optimization (SXO) is a fast growing field that combines the disciplines of Search Engine Optimization (SEO), Conversion Rate Optimization (CRO) and User Experience (UX) Design. It's a holistic approach to creating websites that are not only optimized for search engines and bots, but for users too, a highly effective method of converting a websites visitors into customers and subscribers, leading some to think of it as SEO 2.0. Recent industry reports suggests that front-end developers and web designers need to embrace SXO best practices to ensure websites are optimized by the metadata, metrics, and analytics that SEO provides. They also need to ensure that a website or application is easy-to-use and behaves in a way the user expects because happy users drive higher retention rates and higher revenue, which is essential for commercial app creators. The Art of SXO aims to be a comprehensive guide to this emerging field, explaining what it is, how it works, and how to use it to improve search rankings, increase conversions rates, and ultimately grow a company's revenue. This guide will be packed with tips, tricks, and tactics making it an essential resource for anyone looking to get the most out of their search traffic.What You'll LearnApply SXO best practices and how it differs from tradition SEOOptimize websites for both search engine bots and users Increase a website's ranking in SERPsImprove a website's conversion ratesGrow revenue from organic trafficWho This Book Is ForWeb developers and UX designers, technical SEO specialists, digital marketers and business owners who may have a basic understanding of SEO, CRO, UX design and core digital marketing concepts, but are looking to take their practices to the next level with SXO.

Discover the RESTful technologies, including REST, JSON, XML, JAX-RS web services, SOAP and more, for building today's Java-based microservices, big data applications, and web service applications using the Micronaut framework. This book is based on a course the Oracle-based author is teaching for UC Santa Cruz Silicon Valley which covers architecture, design best practices and coding labs.Pro RESTful APIs with Micronaut (Second Edition) gives you all the fundamentals from the top down: from the top (architecture) through the middle (design) to the bottom (coding). This book is a must have for any microservices or web services application programmer or developer building applications and services for today's enterprises. After reading and using this book, you'll be competent in using Micronaut and RESTful APIs for building today's microservices. Source code for the examples and case studies are free and available on Apress' GitHub page for this book.What You'll LearnDiscover the key RESTful APIs, including REST, JSON, XML, JAX, SOAP and moreExplore the Micronaut frameworkUse these for microservices for today's modern web services and data exchangesHarness Java, XML, JSON, REST, and JAX-RS in examples and case studiesApply best practices to your solutions' architecture and moreWho This Book Is ForExperienced Java and web programmers and developers who may be new to microservices and even cloud-native applications development.

Build different components of larger systems using class sets of micro:bits with Python in a truly collaborative way. First you'll explore ways to harness the capabilities of the humble micro:bit and learn to creatively overcome some of its limitations; learning practical text-based programming along the way. We'll then move on to building projects that allow multiple micro:bits, and other microcontroller boards and parts like the Raspberry Pi, to communicate with one another, and coordinate their operations to build larger systems.Rather than just being a guide to learning these skills, this book will include tips and stories about implementing the these ideas in classrooms, Code Clubs, and Maker environments. Practical logistics for preparation and easy set-up, as well as, acceptance criteria and accountability for students and participants is included. These ideas were gained over years of running a Code Club and running Maker workshops and events.You'll learn about programming collaborative solutions and design logic. Then you'll scale that logic up to more complex projects. By the end, you'll have added additional electronic and physical components to projects that interact with the world. You'll create fun inventions together, using hardware, coding, electronics, physical objects, and e-textiles.What You'll LearnSolve problems and create art by modelling solutions and ideas with a combination of Python coding, electronic systems engineering, and creative design.Navigate the logistical and unique challenges that come with running your own Code Club, Makerspace, or feeding these activities into STEAM design and technology curriculums.Take new Makers from simply copying and duplicating through to debugging and understanding.Who This Book Is ForMakers and instructors interested in starting group projects while learning to code and gain other Maker skills along the way. Essential information is provided in a form that enables beginners and intermediate Makers to get hands-on quickly, but with enough depth to keep building on these projects and pushing the boundaries.

¿Customer Success is a relatively a new discipline that focuses on maximizing customer business value and outcomes realization. Practitioners focus on customer adoption, customer experience and then positive correlation, organic growth and retention is achieved. This book will provide a practical guide for operationalizing the Customer Success function and methodologies. As we now step into the next phase of Customer Success, a phase of growth and standardization, it becomes important to start thinking about how to effectively scale this extremely important function. You'll see how to go from just offering a taste of Customer Success experience to your top customers, to offering it to all your customers, irrespective of their tier, spending, and current growth potential. As you expand the scope of Customer Success across all your customers, it becomes very important to understand how to operationalize Customer Success, how to convert the philosophies and ideas and best practices to usable operational models, and how to build a Customer Success Center of Excellence (CoE) focused on standardizing, scaling and expanding Customer Success practices and methodologies to optimize customer and company success and ROI. Scaling Customer Success will show you what kind of operational processes and workflows need to be put in place based on the stage of your company, products, customer engagement model and desired outcomes, what metrics are important to measure and how to capture those metrics. You'll also study what kinds of workflows to establish, how to effectively map and analyze results and most importantly, how to do Customer Success at scale effectively.What You'll Learn¿ Understand what a Customer Success Center of Excellence is¿ Establish a blueprint for how to scale and automate a Customer Success practice¿ Review information on key Customer Success metrics and workflowsWho This Book Is ForCompany leaders and customer success managers

Global surveys from McKinsey, BCG, Gartner, and others show that less than 30% of digital transformation programs succeed in their missions to improve a company¿s performance and employee productivity. This is due to the fact that IT efforts within the company do not center around the employee. This book will provide concrete steps to allow both IT professionals and business leaders to transform the way they deliver IT to employees ¿ with the employee (the human) centered in their transformation.The concepts, models, checklists, and playbook you'll review are based on the author's many years of experience, lessons learned, and proven outcomes. IT organizations want to improve their employee experience but don¿t know how and this is the ¿must have¿ book for those who don¿t know where to start. More than two-thirds of today¿s jobs require good digital and IT skills from employees. The expectations of management, who invest in these big digital transformations, is that the employees will become more productive, effective and help the bottom line. However, this can only happen through active and proactive change of IT operations and transformations that center the employee, rather than technology or senior management. This book reveals the benefit of moving towards an approach where employees gain technology aptitude, are up for technology change, and are willing to learn more for their benefit and even provide feedback on ways to improve these tools, trainings and support. You'll see how employee engagement and experience research, concepts, and implementations are growing rapidly across many organizations and taking a key role in their global strategies. Employee-centric IT will transform employees to own their digital literacy and development, and this in turn reduces or even eliminates the shadow IT need and allows the organization to drive and implement successful digital transformation.What You'll LearnUnderstand the value of being employee-centric in IT departments versus current modelsTake steps to win IT team¿s acceptance of the changes needed to achieve employee-centricityBe proactive in providing training & information on digital & productivity toolsWho This Book Is ForBusiness leaders, IT and digital leaders as well as IT employees who would like to transform their current IT and Digital teams to be more employee centric and drive highest level of value, adoption and satisfaction for their IT/digital programs, transformations and investment.

A service-oriented architecture is fundamental to many new IT applications, from web development to social software and cloud computing. The same principles can be applied to every aspect of the service-oriented enterprise ¿ not just in IT. In this book, yoüll explore how an enterprise architecture and viable services can link together to create a simpler yet far more powerful view of the enterprise, as a dynamic, unified whole. You can use the ideas, principles and methods described here in business transformation, workflow mapping, system design and much else besides, in every type of enterprise - including those in which there may be little or no IT at all. Step by step, yoüll walk through the basics of service-oriented architectures, the four key categories of services and how they connect, and how all of this comes together in real-world service design, implementation and operations. From this, yoüll discover how to identify and describe the different types ofservices that you need for your enterprise, and how to distinguish between the services that you can safely outsource, versus those that you do need to keep in-house. By the end of this book, yoüll learn how to construct function models and service models of your enterprise as a base for service-mapping, and how to pinpoint and map the information flows you need for service-management and service-performance, to keep everything on-track to purpose. What You'll LearnSee how an enterprise architecture can work as a literal architecture Understand Stafford Beer¿s "Viable System Model" and adapt it as a robust modelStudy how a Viable Services Model provides a template for service design that covers functionals, non-functionals and operational governance for servicesWho This Book Is ForEnterprise architects, Business architects, Service designers, Workflow designers

Node.js Recipes is your one-stop reference for solving Node.js problems. Filled with useful recipes that follow a problem/solution format, you can look up recipes for many situations that you may come across in your day-to-day server-side development. Node.js is accessible to those who not only relish in server-side programming but also web developers who understand the ubiquitous language of the web. Node.js Recipes covers all the essential ingredients required to become a seasoned Node.js developer in no time - make it your indispensable reference today.