Adapters are predefined software codes that communicate with various target applications. Each adapter is programmed to integrate one specific source (for example, SAP or SQL) or target (Financial Management, Hyperion Enterprise, and so on) system. Adapters are composed of two components—DLL/EXE and XML metadata. DLL/EXE files contain the system-specific instructions for interacting with target or source systems. The XML files contain all data that relates to the current FDM application.