K Module -> Glossary
KDE Glossary
Please note that not all of the KDE 4 developments are available in 4.0. Some may not be ready for 4.1. A KDE 4.0 Visual Guide: and a 4.1 screencast give an excellent overview of KDE 4.
The following table is intended to help you find your way through the mists of new names and new concepts. In some cases you can find a link from a KDE 3 component to its equivalent in KDE 4.
| Term | Definition | Reference |
|---|---|---|
| Akonadi | The data storage backend for all PIM (Personal Information Manager) data in KDE 4. One single storage and retrieval system allows efficiency and extensibiliy not possible under KDE3, where each PIM component had its own system. | More info: |
| aRts | The sound framework in KDE 2 and 3. Its single-tasking nature caused problems when two sources of sound were encountered. In KDE 4 it is replaced by Phonon | More info: |
| Containment | A "Containment" is a Plasma container that holds applets. The desktop itself is a containment, the panel is another containment. Plasma allows you to have any number of containments. Technically, a containment is derived from the Plasma::Applet class. | |
| D-Bus | An inter-service messaging system. Developed by RedHat, it was heavily influenced by KDE's DCOP, which it supercedes. | More info: |
| Decibel | Using D-Bus, Decibel is the framework to manage all communication protocols including IM, email and VOIP through a unified system. Decibel is expected to be fully functional by KDE 4.2. | More info: |
| Dolphin | The default file manager in KDE4. It has a side panel, but navigation is mainly by the 'breadcrumb' trail above the main window. Split windows are possible, and views can be applied to individual windows. Mounting and umounting USB devices can be done in the side-panel. | More info: |
| Extenders | Extenders are a special kind of popup that can grow out of a Plasma panel for example. Extenders have detachable parts. Extenders are a new concept that will enter Plasma for KDE 4.2. The Kuiserver (the interface that collects all long running jobs and puts them into one windows, also planned for that release) will make use of extenders so you can detach various jobs and monitor their progress separately. | |
| Flake | Flake is a programming library to be used in KOffice2. Functionally, it provides Shapes to display content and Tools to manipulate content. Shapes can be zoomed or rotated and can be grouped to work as a single Shape, around which text flow is possible. | More info: |
| Kcontrol | KDE Control Center, for setting global preferences in KDE3. Replaced by KDE4's System Settings interface. | |
| Kickoff | In KDE 4 (and some late versions of KDE 3), a launch menu in which apps are sorted by functional group. 'Favorites' replaces the 'Most used applications' in Classic Menu, and applications can be added to it. Right-click also offers the possibility of adding applications to the desktop or panel. Rapid access to a less-used application can be by the search box. Other menus are being worked on, since KDE 4 can be used with more than one launcher, should that be required. | More info: |
| KJS | KDE's JavaScript engine. | |
| KDOM | A KPart module making KHTML DOM (Document Object Model) rendering capabilities available to all applications. KSVG2 is built on KDOM for KDE 4. | |
| KHTML | KHTML is the HTML rendering engine for the KDE desktop, as used by KDE's Konqueror Browser. It also provides a KPart that enables all KDE applications to display web content. KDE4 also sees the introduction of Qt WebKit for Plasma and other applications. | |
| KIO | KDE Input/Output framework provides a single API for operating on files, whether local or on a remote server. Additionally, KIO Slaves provide support for individual protocols. Some particularly useful ones are http, ftp, sftp, smb, nfs, ssh (fish), man, tar and zip. | More info: |
| Kinfocenter | Kinfocenter originated as part of kcontrol standing alone from KDE 3.1. In KDE 4 it is replaced by modules configured in System Settings, notably Solid | More info: |
| Kiosk | Kiosk is a framework for restricting user capabilities on a KDE system, ideal for use in locked-down environments such as Internet cafés. Currently available in KDE 3 only. | |
| KPart | A KPart is an individual component of the KDE desktop environment and allows applications to share their services with other applications. KParts allow KMail and KOrganizer to integrate into the Kontact suite, or KHTML to display sites in Akregator. | |
| Kross | Kross is a scripting framework, enabling KDE 4 support for multiple scripting languages. A plugin system allows for the support of further languages in the future. | |
| KSVG | KSVG enables support for scalable vector graphics in a khtml browser. KSVG2 extends this for KDE 4. | |
| KWin | KWin is the window manager. This is where window decorations can be changed and themes applied. KDE4 extends KWin to provide support for 3D Compositing effects on the desktop. | More info: |
| Nepomuk | 'Networked Environment for Personalized, Ontology-based Management of Unified Knowledge', Nepomuk aims to remove artificial barriers between information to allow dynamic classification, organisation and presentation of data to the user. Whether downloaded from the internet, received in an email or scribbled in a note, information is globally searchable and tagged with intelligent data. See The Semantic Desktop for further discussion of this concept. | More info: |
| Oxygen | Oxygen is the default theme of KDE4. Designed to bring 'a breath of fresh air' to the desktop by removing the simplistic, cartoonish icons, and replacing them with a clean theme and photo-realistic icons. Oxygen uses a desaturated palette to avoid the icons becoming a distraction and uses detailed scalable graphics (SVG). | More info: |
| Phonon | A cross-platform multimedia API, interfacing with existing frameworks, such as gstreamer and xine engines. KDE 2 and 3 depended on aRts for sound. Phonon replaces it. | More info: |
| Plasma | In KDE 4 Plasma replaces KDesktop, kicker and the superkaramba widget engine. The applets are called Plasmoids, and range from informational widgets to mini-apps such as a calculator or dictionary. | More info: |
| Qt | (Pronounced 'cute') A framework/toolkit for writing cross-platform applications. It is used by many cross-platform applications such as Opera browser, GoogleEarth and Skype. Qt is developed by Trolltech, who are now part of the Nokia.Qt forms the underlying library KDE is built on. | More info: |
| Raptor | Raptor is the third application menu available for KDE4 and uses a style similar to music hardware interfaces. Raptor is not finished yet. | More info: |
| Solid | Solid provides a single API for hardware management. Hardware is grouped into 'domains'. The initial domains relate to HAL, NetworkManager and the Bluetooth stack.Since the backends for Solid are pluggable, Solid helps application developers write less code, and have it platform independent. | More info: |
| Sonnet | Sonnet is a multilingual spell-checker planned for KDE 4. One of its strengths is the ability to recognise the language in use and call up the appropriate dictionary. | More info: |
| Soprano | Soprano is a sub-project of Nepomuk, providing a repository for gathered information such as tags, ratings, etc.. This makes the information available to Strigi | More info: |
| Strigi | A deep-indexed search daemon, Strigi aims to be fast and light-weight. It also uses SHA-1 hash which will help in the identification of duplicate files. | More info: |
| System Settings | KDE 4's replacement for kcontrol (Control Center) providing modular control over the KDE system. | More info: |
| Threadweaver | This thread programming library spreads work among multiple-core processors where available, prioritising them before queueing them for execution. ThreadWeaver provides a high-level job interface for multithreaded programming. | More info: |
| WebKit | HTML rendering engine, originating from a fork of KHTML. Adopted by Apple and developed for Safari. Webkit brings the whole functionality back to KDE 4, where it is available through Qt. | More info: |
| Widget | Collins English Dictionary: "Any small mechanism or device the name of which is unknown or temporarily forgotten." There are two meanings for "widget" in KDE. In terms of the desktop, a widget is a single component on the desktop. Similar terms inlude "applet" and "gadget". Superkaramba Themes, Apple's Dashboard, Google Gadgets, Yahoo Widgets, Vista Sidebar Widgets, Opera Widgets are examples of other widget systems. In terms of the user interface, a widget is a GUI element or control. Push buttons, drop down boxes, and tree views are all examples of GUI widgets. Most of the user interface in KDE is created with widgets from the Qt and KDE library frameworks. |
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| XMLGUI | A programmers' framework for designing the user interface. It is extensively used by kparts | More info: |
| ZUI | The Zooming User Interface. "By zooming out, users can get an overview of all the object groupings that they have made. These groupings may reflect the projects they are working on, be ways to keep different sets of files organized, etc. By hovering or clicking on one of these groups when zoomed out, users can either get a preview/snapshot of what is in the grouping, or zoom in on that grouping so that it is displayed full size on the physical screen." aseigo. | More info: |