Barcode Writer in Pure Postscript implements the printing of many barcode formats entirely within PostScript

Barcode Writer in Pure Postscript implements the printing of many barcode formats entirely within PostScript, so that the process of converting the input string into the printed output is performed by the printer itself. The project supports all major barcode formats including EAN-13, EAN-8, UPC-A, UPC-E, ISBN, Code 128 (A, B, and C), Code 39, Code 93, Code 11, ITF-14, GS1 DataBar, MSI, Plessey, Postnet, Code 2 of 5, Codabar, QR Code, PDF417, MaxiCode, Aztec Code, Data Matrix, PostNet, OneCode, RM4SCC, AusPost, etc.

• Licenses : MIT/X
• Operating Systems : OS Independent
• Implementation : PostScript

Freeside : An open-source billing and trouble ticketing packag

Freeside is an open-source billing and trouble ticketing package for ISPs, VoIP, hosting, service, and content providers, and other online businesses.

• Licenses : AGPL
• Operating Systems : POSIX, BSD, FreeBSD, Solaris, Linux, Unix
• Implementation : Perl, SQL

Recoll : A personal full text desktop search tool based on Xapian

Recoll is a personal full text desktop search tool based on Xapian. It provides an easy to use, feature-rich, easy administration interface with a Qt-based GUI. Text, HTML, PDF, PostScript, MS Word, OpenOffice, Wordperfect, KWord, Abiword, maildir, and mailbox mail folder formats are supported, along with their compressed versions. Powerful query facilities are provided. Multiple character sets are supported, and internal processing and storage uses Unicode UTF-8. Stemming is performed at query time and the stemming language can be switched after indexing.

• Licenses : GPL
• Operating Systems : POSIX, BSD, FreeBSD, Linux, Solaris ,Unix
• Implementation : C++

Tulip : A software system dedicated to the visualization of huge graphs

Tulip is a software system dedicated to the visualization of huge graphs. It manages graphs with up to 500,000 elements (node and edges) on a personal computer (PIII 600 with 256MB RAM). The Tulip architecture provides the following features: 3D visualizations, 3D modifications, plugin support, support for clusters and navigation, automatic graph drawing, automatic clustering of graphs, automatic selection of elements, and automatic coloring of elements according to a metric.

• Licenses : GPL
• Operating Systems : POSIX, Linux, Windows, Mac OS X
• Implementation : C++

Xapian : A search engine library, scalable to collections containing hundreds of millions of documents

Xapian is a search engine library, scalable to collections containing hundreds of millions of documents. It's written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C#, and Ruby. It is a highly adaptable toolkit that allows developers to easily add advanced indexing and search facilities to their own applications. It supports the Probabilistic Information Retrieval model and also a rich set of boolean query operators. Omega is a Web search application built upon the Xapian library. It can index a Web server's document tree (including HTML, PDF, OpenOffice, MS Word/Excel/Powerpoint/Works, WordPerfect, RTF, PS, etc.), or data exported from arbitrary sources (e.g. SQL databases).

• Licenses : GPL
• Operating Systems : Windows, Unix, Mac OS X, OS/2
• Implementation : C++, Perl, PHP, Python, Java, Tcl, Ruby, C#

WebIssues : A system that supports team collaboration across the Internet

WebIssues is a system that supports team collaboration across the Internet. It can be used for storing bugs and other information with customizable attributes, comments, and file attachments. The server can be installed on any host with PHP and MySQL, PostgreSQL, Firebird, or MS SQL Server. The client is a native desktop application for both Windows and Linux.

• Licenses : GPL
• Operating Systems : Windows, POSIX, Linux
• Implementation : C++, PHP

Scalable OpenGroupware.org (SOGo) : A project derived from OpenGroupware.Org (OGo) with scalability in mind

Scalable OpenGroupware.org (SOGo) is a project derived from OpenGroupware.Org (OGo) with scalability in mind. The Inverse edition of this project has many feature enhancements: CalDAV and GroupDAV compliance, full handling of vCard as well as vCalendar/iCalendar formats, and support for folder sharing and ACLs. The Web interface has been rewritten in an AJAX fashion to provided a faster UI for the users, consistency in look and feel with the Mozilla applications, and to reduce the load of the transactions on the server.

• Licenses : GPL
• Operating Systems : OS Independent
• Implementation : Objective C, JavaScript

Pinot : Personal search and metasearch for the Free Desktop

Pinot is a D-Bus service that crawls, indexes your documents, and monitors them for changes. It is also a GTK-based user interface that enables you to query the index built by the service or your favorite Web engine, and display and analyze the results. It makes full use of advanced indexing and search facilities offered by Xapian, features language detection, dynamic document summaries, easy labelling of documents, and internal support for common file types. The D-Bus interface allows easy integration with other applications.

• Implementation : C++

Scalable OpenGroupware.org (SOGo) is a project derived from OpenGroupware.Org (OGo) with scalability in mind

Scalable OpenGroupware.org (SOGo) is a project derived from OpenGroupware.Org (OGo) with scalability in mind. The Inverse edition of this project has many feature enhancements: CalDAV and GroupDAV compliance, full handling of vCard as well as vCalendar/iCalendar formats, and support for folder sharing and ACLs. The Web interface has been rewritten in an AJAX fashion to provided a faster UI for the users, consistency in look and feel with the Mozilla applications, and to reduce the load of the transactions on the server.

• Licenses: GPL
• Operating Systems: OS Independent
• Implementation: Objective C, JavaScript