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Right Sizing is difficult
TOP - Research Needs - Data management requirements
BOTTOM - User abilities, requirements
Legacy
Evolvability
Modularize components eg. 10/100 Ethernet cards
Standardize hardware
International Standards Organization
OSI - Open Systems Interconnection reference model HOLANv2p79
TCP/IP - Transmission Comtrol Protocol/ Internet Protocol
POSIX - Portable Operating System Interface for UNIX
CORBA - Common Object Request Broker Architecture