The Open-Transactions project is a collaborative effort to develop a robust, commercial-grade, fully-featured, free-software toolkit implementing a full-strength financial cryptography library, API, CLI, and prototype server. Open-Transactions democratizes financial and monetary actions. You can use it for issuing currencies/stock, paying dividends, creating asset accounts, sending/receiving digital cash, writing/depositing cheques, cashier's cheques, creating basket currencies, trading on markets, scripting custom agreements, recurring payments, escrow, etc. Strong crypto is used. Balances are unchangeable (even by a malicious server). Receipts are destructible and redundant. The transactions are unforgeable. The cash is untraceable. The cheques are non-repudiable.
oXygen is an XML editor that supports any XML document, and works with XML Schemas, DTDs, Relax NG schemas, and NRL Schemas. It has powerful transformation support that allows you to edit XSLT and XSL-FO documents and to obtain documents in the desired output format (such as HTML, PS, or PDF) with just one click. It also includes a complete Subversion client, support for flattening XML Schemata, an XML Schema instance generator, integration with the X-Hive/DB, MarkLogic and TigerLogic XML databases, editing actions on the diagram, and a rename refactoring action.
SL-POS is a patch that adds significant point of sale and retail management capabilities to SQL-Ledger. Current features include several ways of tracking till cash drawers, online till closing routines, rudimentary portable data terminal integration, POS hardware support (Pole displays, receipt printers, cash drawers), and more. It is commercially supported.
For improving trading in stocks or futures, it is important to record the trades in a trading journal. By using such a diary one has the possibility to comment, analyze, and review the past trades. Olf's Trading Journal offers the ability to comment the trades with text and pictures. Trades can be classified by user-defined categories. The trades can be imported and exported as CSV files. It is also possible to import and calculate the profit factor, pessimistic return ratio, and other performance measurements.