FpML (Financial products Markup Language) is a business information exchange standard based on Extensible Markup Language (XML) that enables business-to-business over-the-counter (OTC) financial derivative transactions online by following W3C standards. The standard is managed by International Swaps and Derivatives Association (ISDA) on behalf of a community of investment banks that make up the OTC derivatives industry. All categories of privately negotiated derivatives will eventually be included within the standard.