Physical Map and Symbolic Map :
Physical Map control the screen alignment, Sending and receiving data from terminal. Physical Maps are coded using BMS macros. Physical Maps are assembled and link edited into CICS load library.

Symbolic Maps define the map fields used to store variable data referenced in COBOL program. Symbolic maps are also coded using BMS macros. After assembling, they are placed in a Copy library and then copied into CICS programs using Copy statement.