• Intranet

    Computer network for sharing information, easier communication, collaboration tools, operational systems, and other computing services within an organization, usually to the exclusion of access by outsiders. The term is used in contrast to public networks, such as the Internet, but uses the same technology based on the Internet protocol suite.

  • InVision

    Digital product design platform that enables teams to collaborate on digital product experiences through prototyping, design specifications, and real-time collaboration tools like its Freehand online whiteboard.

  • IP overhead

    Extra data required for network protocols, such as headers and control information, that consumes bandwidth and is not the actual user data. It includes headers from various layers, like the IP and TCP headers, and can also involve extra encapsulation from technologies like Ethernet, VLAN, and VPNs.

  • ISV – Independent Software Vendor

    Company or organization that develops and sells software products designed to run on various hardware platforms and operating systems. ISVs often solve specific customer problems, and hardware manufacturers work with them to ensure compatibility, optimal performance, and reliability of their products.

  • Jacobs Law

    UX principle by Jakob Nielsen stating that users prefer websites and applications to work like those they already know, transferring their existing mental models to the new interface. To take advantage of this, designers should use familiar design patterns and conventions, such as placing the logo in the upper left corner or navigation at the top of the page, to reduce learning time and create a more intuitive user experience.

  • Java

    Versatile, object-oriented programming language and computing platform known for its „write once, run anywhere” capability, allowing code to run on any system with a Java Virtual Machine (JVM). It is used to create a wide range of applications, including mobile and web apps, enterprise software, and game.

  • JavaScript library

    Collection of pre-written functions for specific tasks, while a JavaScript framework is a pre-written structure for building web applications with a set architecture and design pattern. Libraries provide flexibility, allowing developers to pick and choose features, while frameworks provide a complete solution with less control for the developer. Both libraries and frameworks are commonly used in web development for their complementary benefits.

  • JDBC – Java Database Connectivity

    Application programming interface (API) for the Java programming language which defines how a client may access a database. It is a Java-based data access technology used for Java database connectivity. It is part of the Java Standard Edition platform, from Oracle Corporation.

  • Jest

    JavaScript testing framework, primarily used for unit testing, integration testing, and mocking. It’s particularly known for its simplicity and zero-config setup.

  • JIT – Just-In-Time compilation

    Hybrid execution strategy that combines interpretation and ahead-of-time (AOT) compilation. It is the cornerstone of modern JavaScript engines like V8, enabling dynamic languages to achieve near-native performance. V8, used in Chrome and Node.

  • job printing

    Various types of printing that have been widely used in industry, advertising, and other areas of the economy for some time. Job printing includes utilitarian and occasional small prints. Industrial job printing includes: advertising brochures, catalogs, labels, and covers and packaging. In the case of the handling group, we deal with: leaflets, forms, diplomas, invitations, letterheads, and business cards.

  • JS – JavaScript

    Lightweight object-oriented high-level, interpreted scripting language that is primarily used to make web pages interactive, dynamic, and functional – it moves, refreshes, or otherwise changes on your screen without requiring you to reload the page. It is one of the core technologies of the web, alongside HTML (which structures content) and CSS (which styles it).

  • JSON-LD – JavaScript Object Notation for Linked Data

    Method of encoding structured data using JSON to represent linked data. It’s widely used to provide machine-readable data that can be understood by search engines, web crawlers, and other automated systems. The main purpose of JSON-LD is to allow web developers to easily add structured data to their web pages to enhance SEO and improve content discoverability.

  • JSX – JavaScript XML

    Syntax extension for JavaScript that allows developers to write HTML-like code inside a JavaScript file. It was developed by Meta (formerly Facebook). The syntax of JSX resembles HTML, with opening and closing tags, attributes, and nested elements.

  • JVM – Java Virtual Machine

    Virtual machine that enables Java programs and programs written in other languages that compile to Java bytecode to run on different operating systems and hardware without modification. It acts as an interpreter between the Java bytecode and the underlying system, handling memory management, garbage collection, and security checks to provide a runtime environment for the „Write Once, Run Anywhere” (WORA) principle of Java.

  • JWT – JSON Web Token

    Open standard for securely transmitting information between parties as a JSON object. It’s commonly used for authentication, where a server generates a token with user details after a user logs in, and the client sends this token in subsequent requests to prove its identity without resending login information. A JWT consists of three parts: a header, a payload (with claims about the user), and a signature to verify its integrity.

  • K8S – Kubernetes

    Open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. Originally developed by Google and now maintained by the Cloud Native Computing Foundation, it provides a robust ecosystem and infrastructure for modern cloud-native development. Kubernetes simplifies the management of complex applications by automating tasks like service discovery, load balancing, and self-healing through features like automatic restarts and scaling.

  • Kanban

    Work management method that visualizes processes using a board, facilitating task and workflow management. It originated in Japan, and its goal is to streamline processes, eliminate waste, and increase efficiency.

  • kernel

    Critical component of an operating system that acts as a bridge between the software and the hardware of a computer. It manages system resources, such as memory and CPU time, and provides essential services for the execution of processes.

  • kerning

    Process of adding or subtracting space between specific pairs of characters.

  • kerning

    Amount of space between two letters (or other characters: Numbers, punctuation, etc.) and the process of adjusting that space to avoid awkward-looking gaps between your letters and improve legality.

  • kerning

    Adjusting the distance between specific pairs of characters in a given font and its variant. This determines not only the spacing between letters, but also between other characters . This results in an even distribution of characters and, consequently, a more aesthetic image.

  • KISS – Keep It Simple, Stupid

    Principle which states that designs and/or systems should be as simple as possible. Wherever possible, complexity should be avoided in a system—as simplicity guarantees the greatest levels of user acceptance and interaction. KISS is used in a variety of disciplines, such as interface design, product design, and software development.

  • KPI – Key Performance Indicators

    Indicators used to measure progress toward achieving both financial and non-financial goals within an organization.

  • KV – Key Visual

    Central, consistent visual element used in brand or campaign marketing materials to create a consistent and recognizable identity. It is more than just a logo; it is a comprehensive visual theme that captures the essence and values of the brand, ensuring instant recognition across different media.

  • KVM – Kernel-based Virtual Machine

    Virtualization technology built into Linux that allows you to run virtual machines (VMs) on your system. It enables the Linux kernel to act as a hypervisor, providing the ability to run guest operating systems in isolated environments. KVM is an open-source solution that can support a variety of operating systems, including Linux, Windows, and others, depending on the hardware’s capabilities.

  • LAMP – Linux, Apache, MySQL/Maria DB, Perl/PHP/Python

    One of the most common software stacks for the web’s most popular applications. Its generic software stack model has largely interchangeable components.

  • Laravel

    Free, open-source PHP web framework that helps developers build web applications more quickly by providing a structured starting point and a collection of tools. It follows the model-view-controller (MVC) architectural pattern, which separates the application’s logic, data, and user interface to make development more efficient and manageable. Laravel includes features like built-in systems for routing, authentication, database management, and testing.

  • LCP – Largest Contentful Paint

    Most important of the Core Web Vitals indicators, i.e. Google’s ranking metrics that assess the quality of the user experience on a given website. The LCP indicator measures the rendering time, expressed in seconds, of the largest content located in the content rendering area called the viewport.

  • Lead Magnet

    Incentive (free shipping, bonus, discount, valuable material) offered to potential customers in exchange for their email address or other contact details. It is an effective marketing tool that helps to attract new customers by providing valuable content or benefits. A lead magnet is something you offer for free to encourage recipients to join your database.

  • lead-in

    Introductory part of a piece of writing, designed to capture the reader’s attention and entice them to read further. It’s often the first paragraph or sentence of an article, blog post, or other written work. In typography, the first two or three words of a block of text set in a different, contrasting typeface or style (such as small caps or boldface).

  • Lean

    Partial methodology based on maximizing the elimination of waste. This includes both overt waste, such as the production of unnecessary or defective items, and hidden waste, such as changes in customer vision.

  • legacy code

    Software code that, while still functional, was developed using outdated technologies or practices, making it difficult to understand, maintain, and integrate with modern systems. It is often inherited from past versions or other teams, lacks proper documentation, and lacks automated tests, which hinders modification and extension. Dealing with legacy code presents challenges for developers, including increased risk of bugs and slowdowns in development, requiring careful strategies like testing, refactoring, or gradual replacement to modernize the system.

  • LeSS – Large-Scale Scrum

    Agile framework designed to scale the Scrum methodology to large organizations with multiple teams working on a single product. Developed by Craig Larman and Bas Vodde, its core principle is to apply the goals and principles of Scrum as simply as possible by treating multiple teams as „One Team”. LeSS aims to reduce organizational complexity and promote transparency, collaboration, and efficiency in large-scale projects.

  • Linking

    Process of creating connections between web resources using hyperlinks (often just called „links”). These links allow users to navigate between different pages, sections of a page, or external websites by clicking on text, images, or buttons

  • linting / linter

    Process of analyzing source code to detect potential errors, non-compliance with accepted standards, and optimization and security issues. Linting tools, called linters, scan the code and point out areas that may need improvement. Linting is particularly useful in large projects where many people are working on the same code, as it helps maintain code consistency and quality.

  • Lisp – List Processing

    Functional programming language that was designed for easy manipulation of data strings. As one of the oldest programming languages still in use, Lisp offers several different dialects and has influenced the development of other languages.

  • listing


    Typically refers to creating a directory or classifieds website where users can submit and display listings for businesses, services, products, or other items.

  • LitElement

    Simple base class for creating fast and lightweight web components that run on any web page in any framework. LitElement uses lit-html to render in the Shadow DOM and adds an API for managing properties and attributes.

  • LLM – Large Language Model

    Type of artificial intelligence that understands and generates human-like text by learning from vast amounts of data, and Master of Laws, a postgraduate law degree for law graduates. The context of the query determines which meaning is intended – one refers to advanced artificial intelligence and the other to academic qualifications in law.

  • LMS – Learning Management System

    Learning (or training) management system that is an application or software supporting the process of remote learning via the Internet. LMS platforms enable organizations to create, share, and distribute educational content, manage user progress, and apply learning tools and outcomes.

  • Locale

    Set of language or country-based preferences for a user interface. A program draws its locale settings from the language of the host system. Among other things, locales represent paper format, currency, date format, and numbers according to the protocols in the given region.

  • LXC – Linux Containers

    Operating system-level virtualization method that allows you to run multiple isolated Linux systems (containers) on a single host machine. It is similar to Docker, but while Docker focuses on packaging applications in containers, LXC is more focused on providing full system containers, meaning the entire OS environment is virtualized, not just a single application.

  • Magnolia

    Enterprise-grade content management system that functions as a headless, modular Digital Experience Platform (DXP). It enables organizations to create, manage, and deliver personalized content across various digital channels and devices, and it is designed for scalability and integration with existing IT systems. Key features include support for omnichannel publishing, real-time content editing, personalization tools, and a flexible architecture that can be deployed on-premises or in the cloud.

  • mailing sequence

    Series of automated e-mail messages sent to recipients according to a set schedule and in response to their actions or specific events, used to build engagement, education or sales. It is a type of email marketing automation, using functions such as autoresponder or e-mails of the customer’s life cycle, and thanks to automation tools, it allows for effective planning, dispatch and testing of such campaigns.

  • make.com

    Intuitive interface that empowers teams to visualize automation systems, share workflows, collaborate on logic, iterate efficiently, and document processes clearly. With Make Grid (beta), teams can access a bird’s-eye view of their entire automation landscape in one place.

  • markdown

    Lightweight markup language that many technical professionals use to create and edit technical documents. With Markdown, you write text in a plain text editor (such as vi or Emacs), inserting special characters to create headers, boldface, bullets, and so on.

  • Material Design for Bootstrap

    CSS framework based on the popular Bootstrap that combines Bootstrap styles with Google’s Material Design elements. This enables the creation of aesthetically pleasing, modern, and responsive websites, offering ready-made components and tools inspired by Material Design, such as widgets, tabs, and buttons.

  • Matter.js

    2D physics engine for the web

  • MCP – Model Context Protocol

    Open standard, open-source framework introduced by Anthropic to standardize the way artificial intelligence (AI) systems like large language models (LLMs) integrate and share data with external tools, systems, and data sources. MCP provides a universal interface for reading files, executing functions, and handling contextual prompts. Following its announcement, the protocol was adopted by major AI providers, including OpenAI and Google DeepMind.