IT Glossary - ITU Online IT Training
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IT Glossary
Key Terms To Know In The IT Industry

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User Query

In databases and search engines, a request made by a user to retrieve information or perform an operation.

You will find this term commonly used in Database Management, Web Development

User Session

In computing, a user session represents the time a user, or a user agent, interacts with a system, particularly in the context of websites or web applications.

You will find this term commonly used in Web Development, Security

User Space

The memory area where all user mode applications and some services are run.

You will find this term commonly used in Software Development, Security

User Space Driver

A device driver that runs in user space rather than kernel space, allowing for easier development and potentially greater stability at the cost of performance.

You will find this term commonly used in Software Development, Operating Systems

User Stories

Short, simple descriptions of a feature told from the perspective of the person who desires the new capability, usually a user or customer of the system.

You will find this term commonly used in Agile Development, Project Management

User Story

An informal, natural language description of one or more features of a software system. User stories are often used in agile software development and scrum methodologies.

You will find this term commonly used in Software Development

User Story Backlog

A prioritized list of user stories, serving as a to-do list for a project in agile software development methodologies. It helps teams prioritize tasks and manage their work more effectively.

You will find this term commonly used in Agile Development, Project Management

User Story Mapping

A visual exercise that helps product managers and development teams organize and prioritize work by mapping out user stories according to their sequence or criticality in the user journey.

You will find this term commonly used in Agile Development, Software Development

User Testing

The process by which a product or service is tested with the target audience in order to obtain feedback on its usability and effectiveness.

You will find this term commonly used in UX Design, Quality Assurance

User-Centered Design

User-Centered Design is an iterative design approach that prioritizes the needs, preferences, and behaviors of end users throughout the product development process. It aims to create products that are intuitive, accessible, and enjoyable to use.

You will find this term commonly used in UX/UI Design, Product Development, General IT

User-Centric Design

A design philosophy and process in which the needs, wants, and limitations of end-users of a product or service are given extensive attention at each stage of the design process.

You will find this term commonly used in UX Design, Software Development

User-Centric Networking

Networking approaches and technologies focused on enhancing the user's control and flexibility over their online interactions, privacy, and data.

You will find this term commonly used in Networking, Cybersecurity

User-Defined Function (UDF)

In databases, a function provided by the user of a program or environment, in a context where the usual assumption is that functions are predefined.

You will find this term commonly used in Database Management

User-Generated Content (UGC)

Content created by users of an online system or service, such as forums, blogs, social media, and video sharing sites, often contributing to the richness of online community and resources.

You will find this term commonly used in Web Development, Social Media

User-Level Thread

A type of threading in software development where the thread management is done by the application without kernel support, allowing for faster and more granular thread management.

You will find this term commonly used in Software Development, Operating Systems

Userland

The space in which user applications and services run, as opposed to the kernel space, where code executed is more privileged and interacts directly with the hardware.

You will find this term commonly used in Operating Systems

Utility Cloud

A model of cloud computing that is comparable to traditional utilities like electricity, where computing resources are provided and consumed as a service and charged based on usage.

You will find this term commonly used in Cloud Computing, General IT

Utility Cloud Services

Cloud services that provide a wide range of utility-like resources such as computing power and storage, typically on a pay-as-you-go basis.

You will find this term commonly used in Cloud Computing, General IT

Utility Computing

Utility Computing is a model in which computing resources, such as processing power, storage, and applications, are provided to users on-demand, like a utility service. Users pay for the resources they consume, similar to electricity or water bills.

You will find this term commonly used in Cloud Computing, General IT, Virtualization

Utility First CSS

A CSS architectural approach that emphasizes the use of utility classes over semantic or presentational class names, promoting rapid development and reducing stylesheet size.

You will find this term commonly used in Web Development, Frontend Development

Utility Program

A type of computer software designed to perform a specific task that helps to manage, maintain, and control computer resources.

You will find this term commonly used in General IT, Software Development

Utility Programming

The creation of small, useful programs designed to perform specific tasks that help in system management, data manipulation, or perform useful functions.

You will find this term commonly used in Software Development, System Administration

Utility Token

A type of cryptocurrency token that is issued in order to fund development projects and can be used to purchase goods or services offered by the project's ecosystem.

You will find this term commonly used in Blockchain, Cryptocurrency

UTM (Unified Threat Management)

A comprehensive solution that has been designed to protect against a variety of security threats. It combines multiple security features and functions into a single device.

You will find this term commonly used in Security, Cybersecurity

UUID (Universally Unique Identifier)

A 128-bit number used to uniquely identify information in computer systems.

You will find this term commonly used in Software Development, Security

UUID Collision

The event of two or more systems generating the exact same UUID. Although theoretically possible due to the finite number of possible UUIDs, it is extremely unlikely in practice.

You will find this term commonly used in Software Development, Security

UWB (Ultra-Wideband)

A radio technology that can use a very low energy level for short-range, high-bandwidth communications over a large portion of the radio spectrum.

You will find this term commonly used in Networking, Wireless Communications

UWB (Ultra-Wideband) Communication

A wireless networking technology that uses a wide spectrum of frequencies to enable high-bandwidth communications over short distances.

You will find this term commonly used in Networking, Wireless Communications

UWP (Universal Windows Platform)

A platform-homogeneous application architecture created by Microsoft and first introduced in Windows 10.

You will find this term commonly used in Software Development

UX (User Experience)

User Experience (UX) encompasses all aspects of an end-user's interaction with a company, its services, and its products. It focuses on enhancing user satisfaction and usability by improving the overall experience.

You will find this term commonly used in General IT, UX/UI Design, Software Development

UX Design

The process of designing (digital or physical) products that are useful, easy to use, and delightful to interact with.

You will find this term commonly used in User Experience (UX)

UX Research

The systematic investigation of users and their requirements, to add context and insight into the process of designing the user experience.

You will find this term commonly used in Software Development

UX Writing

The practice of crafting the text that appears within the product interface, designed to guide users within a product and help them interact with it.

You will find this term commonly used in UX Design, Software Development

UX/UI Design

The comprehensive practice of designing the user interface and user experience of digital products, such as websites and applications.

You will find this term commonly used in UX Design, Software Development

UXD (User Experience Design)

The process of enhancing user satisfaction by improving the usability, accessibility, and pleasure provided in the interaction between the user and the product.

You will find this term commonly used in Software Development

Vagrant

An open-source software product for building and maintaining portable virtual software development environments.

You will find this term commonly used in Software Development, Cloud Computing

Value Engineering

A systematic method to improve the "value" of goods or products and services by using an examination of function.

You will find this term commonly used in Project Management

Value Proposition Design

A process used to ensure that a product or service is positioned around what the customer values and needs.

You will find this term commonly used in Business Strategy, Marketing

Value Stream Mapping

A lean-management method for analyzing the current state and designing a future state for the series of events that take a product or service from its beginning through to the customer.

You will find this term commonly used in General IT, Business Process Management

Value-added Reseller (VAR)

A Value-added Reseller (VAR) is a company that adds value to a product or service by customizing, integrating, or enhancing it before reselling it to end customers. VARs often provide additional services, such as consulting, training, and support.

You will find this term commonly used in Business Solutions, Sales, General IT

VAPT (Vulnerability Assessment and Penetration Testing)

A comprehensive security testing approach that combines vulnerability assessment with penetration testing to identify and address security vulnerabilities in an organization's IT infrastructure.

You will find this term commonly used in Cybersecurity

Variable Font

A font format that supports customization of the font style, weight, and other attributes dynamically via CSS, improving web design and performance.

You will find this term commonly used in Web Development, Graphic Design

Variable Scope

The context within a program where a variable is accessible.

You will find this term commonly used in Software Development

VBA (Visual Basic for Applications)

A programming language developed by Microsoft for automating tasks in Microsoft Office applications.

You will find this term commonly used in General IT

VCP-DW (VMware Certified Professional â Digital Workspace)

Validates the ability to configure, deploy, manage, and maintain VMware Workspace ONE and related solutions.

You will find this term commonly used in Virtualization, Digital Workspace

VCS (Version Control System)

Software tools used to track changes to source code and other files, allowing multiple developers to collaborate efficiently.

You will find this term commonly used in General IT

VDI (Virtual Desktop Infrastructure)

A technology that allows users to access and interact with a desktop operating system hosted on a virtual machine (VM) that runs on a server.

You will find this term commonly used in Virtualization

VDSL (Very-high-bit-rate Digital Subscriber Line)

A digital subscriber line (DSL) technology providing faster data transmission over copper telephone lines than a conventional voiceband modem can provide.

You will find this term commonly used in Telecommunications

Vector Graphics

Vector Graphics are computer graphics images defined in terms of 2D points, lines, curves, and shapes, which are based on mathematical equations. They can be scaled infinitely without losing quality, making them ideal for logos, icons, and illustrations.

You will find this term commonly used in Graphic Design, Web Development, Multimedia

Vector Network Analyzer (VNA)

A device used to measure the network parameters of electrical networks; widely used in telecommunications.

You will find this term commonly used in Networking, Telecommunications

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