The cost of information can be ___________________?
The cost of information can be ___________________?
		A. Costly
B. Valuable 
C. Processing
D. None of the above
		A. Costly
B. Valuable 
C. Processing
D. None of the above
		A. information system 
B. Knowledge system
C. Database system
D. Computer system
		A. created in XML
B. structured information
C. normal information
D. unstructured information 
		A. interface specifications
B. software specifications
C. user dialog  
D. prototyg specifications
		A. Data
B. Software
C. Hardware
D. People 
		A. Operational
B. functional 
C. decision support
D. knowledge
		A. smart card
B. biometric
C. optical mark
D. all of the above