Q). In SAP what is a component of a module?

Answer:

The structure of SAP is divided in various modules such as SD, MM, PP, FI, CO etc. Within a module, there are various components. For example the SD module has the component Sales Order Planning, SD-SOP. As a general rule the Implementation Guide (IMG), accessed via transaction code [SPRO], is broken down into modules with the subnodes as components. Thus, individual modules are further sub-divided into components in SAP.