QuantLib is a cross-platform, quantitative finance C++ library for modeling, pricing, trading, and risk management in real-life. It is also wrapped as Python/Ruby/Scheme modules. Extensions for Excel, R, and Mathematica are available. Other such extensions are under consideration. QuantLib offers tools that are useful both for practical implementation and for advanced modeling. It features market conventions, yield curve models, solvers, PDEs, Monte Carlo (low-discrepancy included), exotic options, VAR, and so on.
Csv2vcard is a program for converting CSV (comma separated values, as exported by software such as MS Outlook) files containing contact information to the industry standard vcard format, which can be imported by most mailers and PIM software (optimized for Evolution). It's based on a Perl script by Michael MacDonald of Ximian. Csv2vcard can be used to convert any CSV format, not just the English Outlook output.
CorporateTime is a proprietary calendar server system originally produced by Steltor and, more recently, Oracle. Ruby/CorporateTime is a Ruby language extension that serves as an interface to the CorporateTime Calendar API (CAPI). Its purpose is to allow interaction with CorporateTime servers via the Ruby programming language. Versions 2.x and 9.x of the CAPI are supported.
Topiq is a document management system based on topic maps with a Web frontend. Documents can be organized in multiple topics with Unix-like access control. A version control and a file-based authorization module is included. Optional packages are a fuzzy full text search and an LDAP-based authorization module.
Makecheque is a tool (written in Ruby) to print bank cheques, either using bank-supplied stationey, or blank check paper (in conjuntion with a MICR font and perhaps special laser toner). It is intended to be used as part of an interactive bookkeeping system. Makecheque quickly and easily prints large batches of checks based on textual format specifications given as standard input and emits ready-for-printer Postscript on standard output.
MONTSUQI is a small transaction monitor for Unix-like systems. It provides online processing like a mainframe, but features a more powerful user interface. It supports programming in C, COBOL, and Ruby. It has a clustering feature for heavy loads, and manages database replication.