Access modules are dynamically linked software components that provide input and output interfaces to different types of external data storage devices, OLE DB data sources, and message queuing software. Access modules import data from various data sources and return the data to a Teradata utility, which then stores the data in the data warehouse. Access modules are dynamically linked to one or more client utilities by the Teradata Data Connector Application Programming Interface (API).
Note: Access modules are distinctly different from INMOD and OUTMOD routines.
Figure 1 depicts the relationship between various access modules and the Teradata Data Connector API.Figure 1: Data Connector API Linkage