Continuous Acquisition and Life-cycle Support (CALS) is a United States Department of Defense initiative for electronically capturing military documentation and linking related information.
[1] The initiative has developed a number of standard specifications (protocols) for the exchange of electronic data with commercial suppliers.
CALS standards have been adopted by several other allied nations.
The CALS initiative has endorsed IGES and STEP as formats for digital data.
CALS was known formerly as Computer-aided Acquisition and Logistic Support.