Information systems that support the business functions that reach out to suppliers are known as_____________?
		A. back office information systems  
B. decision support systems
C. expert information systems
D. front office information systems
		A. back office information systems  
B. decision support systems
C. expert information systems
D. front office information systems
		A. combination box
B. drop-down list  
C. list box
D. ellipsis control 
		A. determine data entry errors on primary keys
B. ensure that the correct type of data is input
C. determine whether a known relationship between two fields is valid  
D. determine whether all required fields of the input have actually been entered
		A. missing requirements
B. overlapg requirements
C. costly requirements  
D. conflicting requirements 
		A. data hidden
B. data display
C. data processing
D. data transfer 
		A. Henry Mintzberg, 1973
B. Herbert Simon, 1960 
C. Blake Lves, 1955
D. Michael Hammer, 1975
		A. Focus
B. Cost leadership 
C. Linkage
D. Information leadership