functions that manage all interaction b/w software, files, &  databases (data retrieval/ querying, updating, security, concurrency control, &  recovery)
functions that manage all interaction between software and files and dbs  - data retrieval/querying, updating, security, recovery, control)
With diplomacy heating up in the nearly 10-month-old nuclear crisis , Chinese Foreign Minister Li Zhaoxing is slated to visit South Korea from August 13 to 15 .