Rave Framework is an open source project intended to provide a .NET architecture primarily targeted to financial applications (personal accounting, financial markets db, technicalanalysis, MS Excel automation, quantitative analysis, etc).
Seer is an application for building, back testing and optimizing computerized trading systems for the stock market. Seer uses a scripting language based upon Perl, which provides easy access to technicalanalysis indicators.
AxonSoftware Indicators Framework is a set of libraries to use inside trading applications which required technicalanalysis functionality.
Given framework allow developers easily integrate new indicators and historical price providers.