In [[computer science]] and [[object-oriented programming]], a '''passive data structure''' ('''PDS''', not to be confused with IBM's [[partitioned data set]]s; also termed a '''plain old data structure''', or '''plain old data''', ('''POD''')), is a term for a [[Recordrecord (computer science)|record]], to contrast with objects. It is a [[data structure]] that is represented only as passive collections of [[Fieldfield (computer science)|field]] values ([[instance variable]]s), without using object-oriented features.<ref name ="psd">{{cite journal |last=Black |first=Paul E. |author2=Vreda Pieterse |title=passive data structure |journal=Dictionary of Algorithms and Data Structures |year=2007 |url=https://xlinux.nist.gov/dads/HTML/passiveDataStruc.html |accessdate=11 September 2014}}</ref>
