Univention Corporate Desktop (UCD) includes a self-explanatory interface based on the KDE user interface. Version 4, which is supplied as of UCD 3.0, offers an ergonomic user interface and a wide range of useful programs from the comprehensive file manager (Dolphin) through miniprograms such as the clock, calendar, calculator (kcalc) up to more extensive applications (e.g., image viewers such as kview).

In addition, KDE 4 included useful applications for diverse user interactions which are integrated directly in the desktop. The so-called plasmoids are "miniprograms" (widgets) which can be selected in the top right-hand corner of the desktop toolbox and saved on the desktop. The plasmoids, which can be scaled and rotated as desired, offer a wide range of functions including battery charge indicator and system monitoring.

Univention Corporate Server can be used to administrate centrally which software is installed on which client. The numerous settings allow adaptation of the software to suit the organisation-specific requirements. For example, you can define whether a client is updated when started, shut down or at a specified time.

User's desktop settings can be specified using Univention Directory Manager. Alongside the standard profile and language settings, it is also possible to assign the log-on scripts to be run. The settings are policy-based and thus can be assigned once for any number of users.

OpenOffice.org offers OpenOffice.org Writer as a text editing program. It is thus possible to produce everything from short memos to whole books. OpenOffice.org Writer includes easy-to-use wizards for many tasks, simplifying even complex requirements such as merge mails.

The spreadsheet analysis OpenOffice.org Calc is easy to learn for beginners and self-explanatory in its use. Professional users will be delighted to discover a large selection of advanced features. Wizards guide you through the selection and use of numerous spreadsheet analysis functions.

Impress is a tool for the production of striking multimedia presentations. The presentations can be equipped special effects and animations and edited with first-class drawing tools.

UCD includes Kontact for the administration and coordination of all e-mails and meetings. This application has a practical overview page where you can see at a glance whether new e-mails or news has arrived.

The component KMail serves as the mail client. KMail offers a range of useful functions. It thus supports several identities. This means you can switch to a different sender address at any time.

KAdressbook is the Kontact component for the administration of contacts. Alongside names, addresses and telephone numbers a large amount of additional information can also be saved in KAdressbook. The information can be imported and exported in many different file formats.

KOrganizer is the Kontact components for the administration of meetings and task lists. It is also possible to plan meetings with other employees by sending invitations.

K3B allows you to burn DVDs and CDs. The K3B interface support simple drag & drop both within the program and between different programs. For example, directly out of the file manager Konquerer. K3B can also serve as a utility program for other KDE programs, such as the media player Amarok.

The high performance application GIMP can be used for image processing. The processing features can be found over toolbars, menus and continually superimposed dialogs, so-called palettes. These contain filters and brushes as well as conversion, selection, level and masking features.