MySQL is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, and "SQL", the acronym for Structured Query Language. A relational database organizes data into one or more data tables in which data may be related to each other; these relations help structure the data. SQL is a language that programmers use to create, modify and extract data from the relational database, as well as control user access to the database. In addition to relational databases and SQL, an RDBMS like MySQL works with an operating system to implement a relational database in a computer's storage system, manages users, allows for network access and facilitates testing database integrity and creation of backups.
Qt is cross-platform software for creating graphical user interfaces as well as cross-platform applications that run on various software and hardware platforms such as Linux, Windows, macOS, Android or embedded systems with little or no change in the underlying codebase while still being a native application with native capabilities and speed.
Firebird is an open-source SQL relational database management system that supports Linux, Microsoft Windows, macOS and other Unix platforms. The database forked from Borland's open source edition of InterBase in 2000 but the code has been largely rewritten since Firebird 1.5.
PyQt is a Python binding of the cross-platform GUI toolkit Qt, implemented as a Python plug-in. PyQt is free software developed by the British firm Riverbank Computing. It is available under similar terms to Qt versions older than 4.5; this means a variety of licenses including GNU General Public License (GPL) and commercial license, but not the GNU Lesser General Public License (LGPL). PyQt supports Microsoft Windows as well as various kinds of UNIX, including Linux and MacOS.
eZ Publish is an open-source enterprise PHP content management system that was developed by the Norwegian company Ibexa. eZ Publish is now maintained by 7x. eZ Publish is freely available under the GNU GPL version 2 license, as well as under proprietary licenses that include commercial support. In 2015, eZ Systems introduced eZ Platform to replace eZ Publish with a more modern and future-proof solution. In 2024, 7x released eZ Publish 6.0 (stable) to replace eZ Publish 5.4 with a more modern and future-proof solution compatible with PHP 7.x and 8.x software.
Multi-licensing is the practice of distributing software under two or more different sets of terms and conditions. This may mean multiple different software licenses or sets of licenses. Prefixes may be used to indicate the number of licenses used, e.g. dual-licensed for software licensed under two different licenses.
LAMP is an acronym denoting one of the most common software stacks for many of the web's most popular applications. However, LAMP now refers to a generic software stack model and its components are largely interchangeable.
In the 1950s and 1960s, computer operating software and compilers were delivered as a part of hardware purchases without separate fees. At the time, source code, the human-readable form of software, was generally distributed with the software providing the ability to fix bugs or add new functions. Universities were early adopters of computing technology. Many of the modifications developed by universities were openly shared, in keeping with the academic principles of sharing knowledge, and organizations sprung up to facilitate sharing. As large-scale operating systems matured, fewer organizations allowed modifications to the operating software, and eventually such operating systems were closed to modification. However, utilities and other added-function applications are still shared and new organizations have been formed to promote the sharing of software.
The Les Trophées du Libre contest was a free software contest whose goal was to promote innovative software projects by giving those projects recognition and media coverage and rewarding participating students and academic institutions with special prizes.
PostBooks is a proprietary accounting and enterprise resource planning business system geared toward small to medium-sized businesses. It used to be released under an open source CPAL license on GitHub, but was made non-free in June 2019. Postbooks was based on the commercially licensed xTuple ERP system created by xTuple, a private software company based in Norfolk, Virginia (VA), United States.
GLPI is an open source IT Asset Management, issue tracking system and service desk system. This software is written in PHP and distributed as open-source software under the GNU General Public License.
BOUML is a Unified Modeling Language (UML) diagram designer. Programmed in C++ and Qt, it is multilingual, and supports code generation and code reverse engineering. The releases prior to version 4.23 are free software licensed under the GNU General Public License (GPL). BOUML 5 up to 6.12 is proprietary software. BOUML 7 and later is free software.
LogicalDOC is a proprietary cloud-based document management system that is designed to handle and share documents within an organization. LogicalDOC is a content repository, with Lucene indexing, Activiti workflow, and a set of automatic import procedures. The system was developed using Java technology.
Dolibarr ERP CRM is an open source, free software package for companies of any size, foundations or freelancers. It includes different features for enterprise resource planning (ERP) and customer relationship management (CRM) but also other features for different activities.
DBeaver is a SQL client software application and a database administration tool. For relational databases it uses the JDBC application programming interface (API) to interact with databases via a JDBC driver. For other databases (NoSQL) it uses proprietary database drivers. It provides an editor that supports code completion and syntax highlighting. It provides a plug-in architecture that allows users to modify much of the application's behavior to provide database-specific functionality or features that are database-independent. This is a desktop application written in Java and based on Eclipse platform.
Planner is a web-based task management application founded in 2018 by Time Solutions. The program is a mix of Slack and Trello, combining an online chat facet of the former with project management of the latter.