Reference Guide

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Titlesort descending Summary
Off-site

Generally understood to mean anywhere other than the physical buildings an organization owns or leases to conduct its day-to-day business.

Office

Name for client application suites for Windows PCs and Macs licensed under Desktop Applications License Model, but also used in other contexts.

Office 365

A set of service plans that combines Microsoft-hosted online services, such as Exchange Online e-mail, with User SLs (Subscription Licenses) to the Office suite and related software.

Office 365 Activation

The default activation method for Office 365-branded applications; uses a Microsoft hosted service to manage the activation of applications installed on users’ devices.

Office 365 Advanced Compliance

A set of legal- and regulatory-related features that augment core compliance capabilities built into Office 365 services; licensed via User SLs (Subscription Licenses).

Office 365 Advanced Threat Protection

An online service that augments the Exchange Online Protection (EOP) service to add protection against previously unknown malware, and augments EOP and Office 365 ProPlus to protect against malicious URLs; licensed via User SLs (Subscription Licenses)

Office 365 Cloud App Security

An online service that provides threat detection, application control, and usage discovery to organizations using Office 365; licensed via User SLs (Subscription Licenses).

Office 365 Customer Lockbox

A set of features licensed through Office 365 Advanced Compliance that enable customers to individually approve or deny requests for access to their Office 365 data by Microsoft administrators.

Office 365 Delve Analytics

An online service designed to help users increase their productivity by better understanding how they spend their work time within Office 365. Renamed; see MyAnalytics for in-depth entry.

Office 365 Enterprise

Suites of Office 365 online services and on-premises server use rights important to large businesses, providing cost benefits compared to purchasing separately; licensed via User SLs (Subscription Licenses).

Office 365 Enterprise Suite Add-ons

Illustration summarizes the various Add-on options for the Office 365 Enterprise suites, including their prerequisites and contents.

Office 365 Enterprise suites packaging

Illustration summarizes the contents of Office 365 Enterprise E1, E3, and E5 suites.

Office 365 Groups

An online service that combines group membership with collaboration spaces for discussions and data sharing among Office 365 users; predominantly licensed through Office 365 Enterprise suites.

Office 365 ProPlus

A suite of client applications for PCs, Macs, phones, and tablets licensed Per-User via User SLs (Subscription Licenses).

Office 365 Service Description

Frequently updated technical documents outlining features in Office 365 Enterprise and their constituent online services.

Office 365 Threat Intelligence

A central console used to investigate the scope, nature, and origin of attacks and suspicious activity; licensed via User SLs (Subscription Licenses).

Office 365 Video

An online service that provides secure Microsoft-hosted portals for viewing, sharing, discussing, and discovering an organization's video content; licensed through Office 365 Enterprise suites.

Office Desktop Suite Timeline

Outlines major licensing and packaging changes to Office 365 ProPlus, Office Professional Plus, Office Standard, Office for Mac Standard, Office Online Server, and Office Web Apps Server.

Office for Mac Standard

Client application suite for Macs that enables document editing, communication, presentation, and related functions; licensed on the Desktop Applications License Model.

Office Graph

An online service that observes Office 365 user activity and infers relationships among users and their content; used in the background by some Office 365 features and licensed via purchase of online services that use it.

Office mobile

Applications for mobile devices that provide e-mail and access to Excel, OneNote, PowerPoint, and Word documents on Android, iOS, and Windows 10 devices; some forms of use are free, some require User SLs (Subscription Licenses).

Office Multi Language Pack

Allows a single instance of an Office desktop application or suite to offer features such as menus and dialogs, grammar and spell checking, and sorting for multiple different languages; use rights included with Office 2016 suites.

Office Online

An online service that enables browser-based viewing and limited editing of Excel, OneNote, PowerPoint, and Word documents; internal users licensed with User SLs or Office and SA.

Office Online Server

Server software that enables browser-based viewing and limited editing of Excel, OneNote, PowerPoint, and Word documents; some functions licensed with User SLs or Office and SA. Successor to Office Web Apps Server.

Office Professional Plus

Client application suite for Windows PCs that combines Access, Excel, Outlook, PowerPoint, Publisher, and Word; licensed on the Desktop Applications License Model.

Office Professional Plus and Standard Edition Packaging

Illustration compares application components in Office Professional Plus and Office Standard across versions 2010 through 2019.

Office SA Benefits

Summary of SA (Software Assurance) benefits associated with Office suites, Visio, and Project; organized by high and low value benefits

Office Standard

Client application suite for Windows PCs that combines Excel, Outlook, PowerPoint, Publisher, and Word; licensed on the Desktop Applications License Model.

Office Suite Use Rights on Servers Flowchart

Flow chart illustrates the ways an organization can acquire the right for clients to access an Offices suite installed and running within server-based desktops.

Office Web Apps Server

Server software that enables browser-based viewing and limited editing of Excel, OneNote, PowerPoint, and Word documents; in some scenarios, use is free, in others, Office suite (Per-Device) licenses or User SLs are required. Replaced by Office Online Server.

On-Premises

A term generally used to describe Microsoft software installed and executed on a client device or server devoted to a customer’s use.

On-site

Generally understood to mean the physical buildings an organization owns or leases to conduct its day-to-day business. See synonym premises for in-depth entry.

OneDrive for Business

An Office 365-branded online service that delivers file storage, sharing, and synchronization; licensed via User SLs (Subscription Licenses).

OneNote

Application for free-form information gathering (including note-taking) and multi-user collaboration available on client devices and platforms including Windows client OS, Mac, Android and iOS mobile devices, and Web browsers.

Online service

A subscription-based product offering with at least some critical component hosted in Microsoft’s data centers.

Online Services Suite Timeline

Outlines major licensing and packaging changes to online services suites sold as User SLs (Subscription Licenses), including Office 365 Enterprise suites, Enterprise Mobility + Security suites, and Microsoft 365 Enterprise suites.

Online Services Terms

One of two main repositories of online services-related licensing information, with the other being the Product Terms

Online Services Use Rights

Predecessor to Online Services Terms, a repository for certain types of information specific to online service licenses acquired through volume licensing programs. See Online Services Terms (OST) for in-depth entry.

Operating System Environment

An operating system instance running on either a physical device, VM (virtual machine), or hardware partition; see synonym OSE for a detailed entry.

Operations Management Suite

Bundles several Azure hosted services to provide a less expensive alternative to separate subscriptions for managing hosted and on-premises compute resources; also includes some rights to manage systems with System Center.

OS

Software that manages computer hardware and allows other software (applications) to run on that hardware; running instances are called OSEs.

OSE

Operating system environment is an operating system instance running on either a physical device, virtual machine, or hardware partition.

OST

One of two main repositories of online services-related licensing information, with the other being the Product Terms. See Online Services Terms (OST) for in-depth entry.

Outlook

Is a Windows desktop application commonly used with Exchange Server and Exchange Online.See Outlook client.

Outlook client

Client applications for accessing Exchange Online and Exchange Server and other systems for e-mail, contacts, calendars, tasks, and voicemail; most commonly licensed as part of various Office 365 and Microsoft 365 suites.

Outlook on the Web

Is a browser based-client included with Exchange Server and Exchange Online.Formerly Outlook Web App; see Outlook client.

Outlook Web App

Is a browser based-client included with Exchange Server and Exchange Online. Renamed Outlook on the Web; see Outlook client.

OWA

Is a browser based-client included with Exchange Server and Exchange Online (full name: Outlook Web App); renamed Outlook on the Web; see Outlook client.