Aplikacje biurowe

Czy chciałbyś lepiej poznać tajniki Excela, PowerPointa, Worda i innego oprogramowania na co dzień przydatnego w pracy? Zajrzyj w takim razie do naszej biblioteki online, gdzie znajdziesz książki skierowane do zarówno początkujących, jak i zaawansowanych użytkowników. Dzięki nim programy biurowe nie będą miały przed Tobą tajemnic.

313
Ebook

Learning Magento 2 Administration. Maximize the power of Magento 2 to improve your e-commerce business

Bret Williams, Cyndi Williams

Magento 2 has been completely re-written and re-designed to take the world’s most popular open source e-commerce platform to new heights of productivity and usability. With this overhaul comes improved opportunities to leverage the world’s most successful open source e-commerce platform for your online retail and wholesale business. The focus of this book is on operational aspects: those actions you, as a proprietor, can take to give your customers a more delightful shopping experience. In this guide, we delve into all aspects of managing a Magento 2 store, from product creation to marketing, customer management to search engine optimization. This book is not only a step-by-step course in setting up your Magento 2 website, it will be a handy reference as continue to improve and refine your online presence.

314
Ebook

Learning Microsoft Project 2019. Streamline project, resource, and schedule management with Microsoft's project management software

Srikanth Shirodkar

Microsoft Project is one of the most popular project management tools for enterprises of all sizes thanks to its wide variety of features such as project scheduling, project budgeting, built-in templates, and reporting tools. Learning Microsoft Project 2019 will get you started with the basics and gradually guide you through the complete project life cycle.Starting with an overview of Microsoft Project 2019 and a brief introduction to project management concepts, this book will take you through the different phases of project management – initiation, planning, execution, control, and closure. You will then learn how to identify and handle problems related to scheduling, costing, resourcing, and work allocation. Understand how to use dynamic reports to create powerful, automated reports and dashboards at the click of a button. This Microsoft Project book highlights the pitfalls of overallocation and demonstrates how to avoid and resolve these issues using a wide spectrum of tools, techniques, and best practices. Finally, you will focus on executing Agile projects efficiently and get to grips with using Kanban and Scrum features.By the end of this book, you will be well-versed with Microsoft Project and have the skills you need to use it effectively in every stage of project management.

315
Ebook

Learning Microsoft Windows Server 2012 Dynamic Access Control. When you know Dynamic Access Control, you know how to take command of your organization's data for security and control. This book is a practical tutorial that will make you proficient in the main functions and extensions

Jochen Nickel

Identifying and classifying information inside a company is one of the most important prerequisites for securing the sensitive information of various business units. Windows Server 2012 Dynamic Access Control helps you not only to classify information, but it also gives you the opportunity and the functionality to provide a safe-net policy across your file servers, showing you some helpful ways of auditing and access denied assistance to improve usability.Understanding the architecture, the design, and implementing the solution, to troubleshooting will be covered in a practical and easy-to-read manner. This book is packed with project-based examples with plenty of information about the architecture, functionality, and extensions of Dynamic Access Control to help you excel in real-life projects. The book guides you through all the stages of a successful implementation of Dynamic Access Control.Microsoft Windows Server 2012 Dynamic Access Control will teach you everything you need to know to create your own projects, and is an essential resource for reviewing or extending already existing implementations.The book initially takes you through the task of understanding all of the functionality and extensions with ideas and overviews to help guide you in the decision process. The whole architecture will be explained in the main building blocks of Dynamic Access control. You will have a strong foundation and understanding of the claims model and Kerberos. Classifying information, the hardest part of the prerequisites to fulfil, is also covered in depth. You will also spend time understanding conditional expressions, and the method used to deploy them across your file server infrastructure. A special chapter is included for handling the data quality and the integration in other systems and strategies. Last, but not least, to get your solution up and running you will learn how to troubleshoot a Dynamic Access Control solution.

316
Ebook

Learning Nagios. A beginners guide on Nagios - Third Edition

Wojciech Kocjan, Piotr Beltowski

Nagios, a powerful and widely used IT monitoring and management software for problem -solving. It detects problems related to your organizations infrastructure and helps in resolving the issue before it impacts the business. Following the success of the previous edition, this book will continue to help you monitor the status of network devices and also notify the system administrators of network problems. Starting with the fundamentals, the book will teach you how to install and configure Nagios for your environment. The book helps you learn how to end downtimes, adding comments and generating reports using the built-in Web interface of Nagios. Moving on, you will be introduced to the third-party web interfaces and applications for checking the status and report specific information. As you progress further in Learning Nagios, you will focus on the standard set of Nagios plugins and also focus on teach you how to efficiently manage large configurations and using templates. Once you are up to speed with this, you will get to know the concept and working of notifications and events in Nagios. The book will then uncover the concept of passive check and shows how to use NRDP (Nagios Remote Data Processor). The focus then shifts to how Nagios checks can be run on remote machines and SNMP (Simple Network Management Protocol) can be used from Nagios. Lastly, the book will demonstrate how to extend Nagios by creating custom check commands, custom ways of notifying users and showing how passive checks and NRDP can be used to integrate your solutions with Nagios. By the end of the book, you will be a competent system administrator who could monitor mid-size businesses or even large scale enterprises.

317
Ebook

Learning Pentaho CTools. Acquire finesse with CTools features and build rich and custom analytics solutions using Pentaho

Miguel Gaspar

Pentaho and CTools are two of the fastest and most rapidly growing tools for practical solutions not found in any other tool available on the market. Using Pentaho allows you to build a complete analytics solution, and CTools brings an advanced flexibility to customizing them in a remarkable way. CTools provides its users with the ability to utilize Web technologies and data visualization concepts, and make the most of best practices to create a huge visual impact.The book starts with the basics of the framework and how to get data to your dashboards. We'll take you all the way through to create your custom and advanced dashboards that will create an effective visual impact and provide the best user experience. You will be given deep insights into the lifecycle of dashboards and the working of various components. Further, you will create a custom dashboard using the Community Dashboards Editor and use datasources to load data on the components. You will also create custom content using Query, the Freeform Addins Popup, and text components. Next, you will make use of widgets to create similar sections and duplicate components to reproduce other components on a dashboard. You will then learn to build a plugin without writing Java code, use Sparkl as a CPK plugin manager, and understand the application of deployment and version control to dashboard development. Finally, you will learn tips and tricks that can be very useful while embedding dashboards into other applications.This guide is an invaluable tutorial if you are planning to use custom and advanced dashboards among the solutions that you are building with Pentaho.

318
Ebook

Learning PowerCLI. A comprehensive guide on PowerCLI - Second Edition

Robert van den Nieuwendijk

VMware vSphere PowerCLI, a free extension to Microsoft Windows PowerShell, enables you to automate the management of a VMware vSphere or vCloud environment.This book will show you how to automate your tasks and make your job easier. Starting with an introduction to the basics of PowerCLI, the book will teach you how to manage your vSphere and vCloud infrastructure from the command line. To help you manage a vSphere host overall, you will learn how to manage vSphere ESXi hosts, host profiles, host services, host firewall, and deploy and upgrade ESXi hosts using Image Builder and Auto Deploy. The next chapter will not only teach you how to create datastore and datastore clusters, but you’ll also work with profile-driven and policy-based storage to manage your storage. To create a disaster recovery solution and retrieve information from vRealize Operations, you will learn how to use Site Recovery Manager and vRealize Operations respectively. Towards the end, you’ll see how to use the REST APIs from PowerShell to manage NSX and vRealize Automation and create patch baselines, scan hosts against the baselines for missing patches, and re-mediate hosts.By the end of the book, you will be capable of using the best tool to automate the management and configuration of VMware vSphere.

319
Ebook

Learning Proxmox VE. Unleash the power of Proxmox VE by setting up a dedicated virtual environment to serve both containers and virtual machines

CHENG MAN, Rik Goldman, Ken Hess

Proxmox VE 4.1 provides an open source, enterprise virtualization platform on which to host virtual servers as either virtual machines or containers.This book will support your practice of the requisite skills to successfully create, tailor, and deploy virtual machines and containers with Proxmox VE 4.1. Following a survey of PVE's features and characteristics,this book will contrast containers with virtual machines and establish cases for both. It walks through the installation of Proxmox VE, explores the creation of containers and virtual machines, and suggests best practices for virtual disk creation, network configuration, and Proxmox VE host and guest security.Throughout the book, you will navigate the Proxmox VE 4.1 web interface and explore options for command-linemanagement

320
Ebook
321
Ebook

Learning Quantitative Finance with R. Implement machine learning, time-series analysis, algorithmic trading and more

Dr. Param Jeet, PRASHANT VATS

The role of a quantitative analyst is very challenging, yet lucrative, so there is a lot of competition for the role in top-tier organizations and investment banks. This book is your go-to resource if you want to equip yourself with the skills required to tackle any real-world problem in quantitative finance using the popular R programming language.You'll start by getting an understanding of the basics of R and its relevance in the field of quantitative finance. Once you've built this foundation, we'll dive into the practicalities of building financialmodels in R. This will help you have a fair understanding of the topics as well as their implementation, as the authors have presented some use cases along with examples that are easy to understand and correlate.We'll also look at risk management and optimization techniques for algorithmic trading. Finally, the book will explain some advanced concepts, such as trading using machine learning, optimizations, exotic options, and hedging.By the end of this book, you will have a firm grasp of the techniques required to implement basic quantitative finance models in R.

322
Ebook

Learning Robotic Process Automation. Create Software robots and automate business processes with the leading RPA tool – UiPath

Alok Mani Tripathi

Robotic Process Automation (RPA) enables automating business processes using software robots. Software robots interpret, trigger responses, and communicate with other systems just like humans do. Robotic processes and intelligent automation tools can help businesses improve the effectiveness of services faster and at a lower cost than current methods.This book is the perfect start to your automation journey, with a special focus on one of the most popular RPA tools: UiPath.Learning Robotic Process Automation takes you on a journey from understanding the basics of RPA to advanced implementation techniques. You will become familiar with the UiPath interface and learn about its workflow. Once you are familiar with the environment, we will get hands-on with automating applications such as Excel, SAP, Windows and web applications, screen and web scraping, working with user events, and we'll cover exceptions and debugging. By the end of the book, you'll not only be able to build your first software robot, but you'll also wire it up to perform various automation tasks with the help of best practices for robot deployment.

323
Ebook

Learning Salesforce Einstein. Add artificial intelligence capabilities to your business solutions with Heroku, PredictiveIO, and Force

Mohit Shrivatsava

Dreamforce 16 brought forth the latest addition to the Salesforce platform: an AI tool named Einstein. Einstein promises to provide users of all Salesforce applications with a powerful platform to help them gain deep insights into the data they work on. This book will introduce you to Einstein and help you integrate it into your respective business applications based on the Salesforce platform. We start off with an introduction to AI, then move on to look at how AI can make your CRM and apps smarter. Next, we discuss various out-of-the-box components added to sales, service, marketing, and community clouds from Salesforce to add Artificial Intelligence capabilities. Further on, we teach you how to use Heroku, PredictionIO, and the Force platform, along with Einstein, to build smarter apps. The core chapters focus on developer content and introduce PredictionIO and Salesforce Einstein Vision Services. We explore Einstein Predictive Vision Services, along with analytics cloud, the Einstein Data Discovery product, and IOT core concepts. Throughout the book, we also focus on how Einstein can be integrated into CRM and various clouds such as sales, services, marketing, and communities. By the end of the book, you will be able to embrace and leverage the power of Einstein, incorporating its functions to gain more knowledge. Salesforce developers will be introduced to the world of AI, while data scientists will gain insights into Salesforce’s various cloud offerings and how they can use Einstein’s capabilities and enhance applications.

324
Ebook

Learning Salesforce Lightning Application Development. Build and test Lightning Components for Salesforce Lightning Experience using Salesforce DX

Mohit Shrivatsava

Built on the Salesforce App Cloud, the new Salesforce Lightning Experience combines three major components: Lightning Design System, Lightning App Builder, and Lightning Components, to provide an enhanced user experience. This book will enable you to quickly create modern, enterprise apps with Lightning Component Framework.You will start by building simple Lightning Components and understanding the Lightning Components architecture. The chapters cover the basics of Lightning Component Framework semantics and syntax, the security features provided by Locker Service, and use of third-party libraries inside Lightning Components. The later chapters focus on debugging, performance tuning, testing using Lightning Testing Services, and how to publish Lightning Components on Salesforce AppExchange.

325
Ebook

Learning Salesforce Visual Workflow and Process Builder. Flows and automation for enhanced business productivity - Second Edition

Rakesh Gupta

Salesforce Management System is an information system used in CRM to automate the business processes like sales and marketing. To implement this, Force.com developed a powerful tool called Visual Workflow to automate business processes by creating applications also called Flows. Learning Salesforce Visual Workflow, Second Edition is a practical guide on Flows that will enable you to develop custom applications in Salesforce with minimized code usage. The book starts with an introduction to Visual Workflows that teaches all the building blocks of creating Flows and use it efficiently. You will learn how to easily automate business processes and tackle complex business scenarios using Flows. The book explains the working of the Process Builder so you can create reusable processes. The book also covers how you can integrate existing or newly created Flows with the Salesforce Lightening Experience. By the end of the book, you will get a clear understanding on how to use Flows and Process Builder in your organization to optimize code usage.

326
Ebook

Learning SaltStack. Build, manage, and secure your infrastructure with the power of SaltStack - Second Edition

Colton Myers

SaltStack is one of the best infrastructure management platforms available. It provides powerful tools for defining and enforcing the state of your infrastructure in a clear, concise way. With this book learn how to use these tools for your own infrastructure by understanding the core pieces of Salt.In this book we will take you from the initial installation of Salt, through running their first commands, and then talk about extending Salt for individual use cases. From there you will explore the state system inside of Salt, learning to define the desired state of our infrastructure in such a way that Salt can enforce that state with a single command. Finally, you will learn about some of the additional tools that salt provides, including salt-cloud, the reactor, and the event system. We?ll finish by exploring how to get involved with salt and what'?s new in the salt community.Finally, by the end of the book, you'll be able to build a reliable, scalable, secure, high-performance infrastructure and fully utilize the power of cloud computing.

327
Ebook

Learning Search-driven Application Development with SharePoint 2013. The search engine in SharePoint 2013 is a refreshed version and this book will show you how to make the most of it with a range of methodologies for developing search-driven applications. JavaScript experience required

Johnny Tordgeman

SharePoint 2013 feels like a of fresh air, offering many new features and changes over older versions. Among these new features is a completely revamped search engine. Learning Search-driven Application Development with SharePoint 2013 is a quick-start guide to creating search-driven applications using the new and exciting features that have revolutionized the SharePoint enterprise search experience.Learning Search-driven Application Development with SharePoint 2013 is a fast-paced, practical, hands-on guide to the world of enterprise search in SharePoint 2013. With step-by-step tutorials and real-world examples, this book will give you a head start creating fresh and exciting search-driven applications using SharePoint 2013's new search engine.Learning Search-driven Application Development with SharePoint 2013 is an accelerated way to create search-driven applications for SharePoint 2013. By covering the basics first and gradually covering all search related topics, this book will be your guide through the world of SharePoint's enterprise search.Furthermore, you will learn how to use the powerful feature of Query Rules to create smart conditions that help respond to user's search queries intelligently. We will also discuss how to style search results and make them stand out, how to index external content so it will be searchable using SharePoint's powerful search engine, and how to use the new client side search APIs, which will allow us to take advantage of search in Apps, the new development model for SharePoint 2013.After reading Learning Search-driven Application Development with SharePoint 2013, you will understand what it takes to create applications that use search as a content provider. Using applications that are based on real world examples and step-by-step tutorials, you'll get hands-on experience in developing search driven applications.

328
Ebook

Learning ServiceNow. Administration and development on the Now platform, for powerful IT automation - Second Edition

Tim Woodruff

This book is an updated version of LearningServiceNow, that will cover the new andupdated features of the ServiceNow platform.It will show you how to put importantServiceNow features to work in the realworld, while introducing key concepts viaexamples of managing and automating ITservices. It'll help you build a solid foundationof knowledge, and will demonstrate how toeffectively implement and configure moduleswithin ServiceNow. We'll show you how toconfigure and administer your instance,and then move on to building strong userinterfaces and creating powerful workflows.We also cover other key elements ofServiceNow, such as notifications, security,reporting, and custom development. Youwill learn how to improve and automate yourbusiness' workflow and processes. By the endof this book, you will be able to successfullyconfigure and manage ServiceNow like a pro.

329
Ebook

Learning ServiceNow. Get started with ServiceNow administration and development to manage and automate your IT Service Management processes

Tim Woodruff, Sylvain Hauser

This book shows you how to put important ServiceNow features to work in the real world. We will introduce key concepts and examples on managing and automating IT services, and help you build a solid foundation towards this new approach. We’ll demonstrate how to effectively implement various system configurations within ServiceNow. We’ll show you how to configure and administer your instance, and then move on to building strong user interfaces and creating powerful workflows. We also cover other key elements of ServiceNow, such as alerts and notifications, security, reporting, and custom development. You will learn how to improve your business’ workflow, processes, and operational efficiency. By the end of this book, you will be able to successfully configure and manage ServiceNow within your organization.

330
Ebook

Learning Tableau 10. Business Intelligence and data visualization that brings your business into focus - Second Edition

Joshua N. Milligan

Tableau has for some time been one of the most popular Business Intelligence and data visualization tools available. Why? Because, quite simply, it’s a tool that’s responsive to the needs of modern businesses. But it’s most effective when you know how to get what you want from it – it might make your business intelligent, but it isn’t going to make you intelligent…We’ll make sure you’re well prepared to take full advantage of Tableau 10’s new features. Whether you’re an experienced data analyst that wants to explore 2016’s new Tableau, or you’re a beginner that wants to expand their skillset and bring a more professional and sharper approach to their organization, we’ve got you covered. Beginning with the fundamentals, such as data preparation, you’ll soon learn how to build and customize your own data visualizations and dashboards, essential for high-level visibility and effective data storytelling. You’ll also find out how to so trend analysis and forecasting using clustering and distribution models to inform your analytics. But it’s not just about you – when it comes to data it’s all about availability and access. That’s why we’ll show you how to share your Tableau visualizations. It’s only once insights are shared and communicated that you – and your organization – will start making smarter and informed decisions. And really, that’s exactly what this guide is for.

331
Ebook

Learning Tableau 2019. Tools for Business Intelligence, data prep, and visual analytics - Third Edition

Joshua N. Milligan

Tableau is the gold standard of business intelligence and visual analytics tools in every industry. It enables rapid data visualization and interpretation with charts, graphs, dashboards, and much more. Updated with the latest features of Tableau, this book takes you from the foundations of the Tableau 2019 paradigm through to advanced topics.This third edition of the bestselling guide by Tableau Zen Master, Joshua Milligan, will help you come to grips with updated features, such as set actions and transparent views. Beginning with installation, you'll create your first visualizations with Tableau and then explore practical examples and advanced techniques. You'll create bar charts, tree maps, scatterplots, time series, and a variety of other visualizations. Next, you'll discover techniques to overcome challenges presented by data structure and quality and engage in effective data storytelling and decision making with business critical information. Finally, you'll be introduced to Tableau Prep, and learn how to use it to integrate and shape data for analysis.By the end of this book, you will be equipped to leverage the powerful features of Tableau 2019 for decision making.

332
Ebook
333
Ebook

Learning VMware vSphere. Click here to enter text

Rebecca Fitzhugh, Abhilash G B

Computer virtualization is a method to enable the running of multiple application workloads on a machine to achieve efficient utilization and reduce the number of physical machines in a data center. This has now become the foundation of many modern day data centers. What began as a technology to virtualize x86 architecture has now grown beyond the limits of a server’s hardware and into the realm of storage and network virtualization. VMware is currently the market leader in developing data center virtualization solutions. This book goes into the details of designing and implementing VMware solutions that form the foundation of a VMware infrastructure.The book begins by introducing you to the concepts of server virtualization followed by the architecture of VMware’s hypervisor – ESXi and then by its installation and configuration. You then learn what is required to manage a vSphere environment and configure advanced management capabilities of vCenter. Next you are taken through topics on vSphere Networking, Storage, ESXi Clustering, Resource Management and Virtual Machine Management. You will then be introduced to SSL Certificate Management and its use in a vSphere environment. Finally, you will learn about the lifecycle management of a vSphere environment by effectively monitoring, patching and upgrading vSphere components using Update Manager. By the end of the book, you will know how to use VMware’s vSphere suite of components to lay the foundation of a modern day virtual infrastructure.

334
Ebook

Mahara ePortfolios: Beginner's Guide. Create your own ePortfolio and communities of interest within an educational and professional organization with this book and

Thomas Bell, Derrin Kent, Richard Hand, Thomas W. Bell, ...

Mahara ePortfolios helps you to use software as you follow an experiential learning cycle. In Mahara you can:Plan your learning.Do what you do and gather evidence of your competence as you do those things.View and organize your work by structuring your data in easy-to-make (web)pages and (mini-website) collections of those pages.Reflect on your learning by use of professional journals, engaging feedback on your pages and establishing and engaging in online communities who share a similar interest.Mahara ePortfolios: Beginner's Guide is a step-by-step guide to develop a feature-rich and highly personal electronic portfolio. Form a digital repository of reflective journals, action learning plans, presentations, reports, images and videos. Easily share this with your friends, family, tutors, students, project team and others using this step-by-step guide written in a clear and easy to learn manner.This book guides you to build an impressive e-Portfolio and to work in professional communities of interest within a Mahara walled garden. It brings to life the key features of Mahara which will help thoughtful people to display their artefacts coherently and to engage with like-minded peers professionally.This book introduces you to exciting features of Mahara framework and helps you develop a feature-rich e-portfolio for yourself. You will see how easily you can create folders, upload multiple files like project documents, pictures and videos and share them with your friends. You will learn to set up single pages and collections of pages which organize these files, making these visible only to your own chosen peers, supervisors or friends. Then, you will allow people to give their inputs.You will learn to create journals, learning plans, your professional resume, group spaces and forums which help you get connected to the rest of the world. Customization and administration of your Mahara site will be easy after you have gone through this book. Imagine how good you will feel when you will see your knowledge, success, and ideas going live and available to your chosen audiences for their inputs.Mahara ePortfolios: Beginner's Guide is a step-by-step guide to building an impressive professional e-portfolio using Mahara. It covers the key features of Mahara that will help you set up your customized digital portfolio and display the artefacts in your preferred way allowing contribution from selected users only.

335
Ebook

Makra i VBA w tydzień. Odkryj potęgę programowania!

Mateusz Boryga

Nauka programowania dla nieprogramistów Jeśli zastanawiasz się nad przekwalifikowaniem i karierą w branży informatycznej albo chcesz poszerzyć swoje umiejętności o programowanie, ale wydaje Ci się ono czarną magią, zapewniamy - w programowaniu nie ma nic z magii. To proces polegający na tworzeniu zbioru instrukcji, dzięki którym komputer wykona to, czego od niego oczekujesz. Jak się nauczyć pisać te instrukcje? Jeśli dysponujesz pakietem Microsoft Office i arkuszem kalkulacyjnym Excel, to masz też dostęp do języka programowania VBA (Visual Basic for Applications). Autor tego poradnika pokaże Ci, że programowania najłatwiej nauczyć się właśnie w VBA. Pośród innych użytecznych narzędzi bowiem Microsoft Excel posiada również rejestrator makr. To on zamienia klikane w Excelu działania na pełnoprawny kod VBA. Dzięki właściwemu użyciu rejestratora możliwe jest więc proste generowanie kodu, na którym można dalej pracować. Wygeneruj kod za pomocą rejestratora makr Excela Zamień go na uniwersalny kod, przydatny w wielu projektach Zobacz najpopularniejsze gotowe do użycia fragmenty kodu VBA Poznaj dobre praktyki programowania w VBA Przejdź na wyższy poziom kodowania i doceń, jak wiele czasu dzięki temu oszczędzasz

336
Ebook

Manage Your SAP Projects with SAP Activate. Implementing SAP S/4HANA

Vinay Singh

It has been a general observation that most SAP consultants and professionals are used to the conventional waterfall methodology. Traditionally, this method has been there for ages and we all grew up learning about it and started practicing it in real world. The evolution of agile methodology has revolutionized the way we manage our projects and businesses. SAP Activate is an innovative, next generation business suite that allows producing working deliverables straight away. Manage your SAP Project with SAP Activate, will take your learning to the next level. The book promises to make you understand and practice the SAP Activate Framework. The focus is to take you on a journey of all the phases of SAP Activate methodology and make you understand all the phases with real time project examples. The author explains how SAP Activate methodology can be used through real-world use cases, with a comprehensive discussion on Agile and Scrum, in the context of SAP Project.You will get familiar with SAP S4HANA which is an incredibly innovative platform for businesses which can store business data, interpret it, analyze it, process it in real time, and use it when it's needed depending upon the business requirement.