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INTRODUCTION TO INFORMATION
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account balance accounts payable accounts receivable activities amount application batch benefits bytes chapter Character printer communication computer system copy costs CUSTOMER-NAME data dictionary data entry data flow analysis data flow diagrams data items DATA STRUCTURES database decision table decision trees described DESCRIPTION determine discussed display document entered equipment errors example Figure handle identify IMPLEMENTATION information systems input interblock gap interviews inventory invoice magnetic tape maintenance manufacturing master file menu methods module needed occur on-line systems operating order entry organization output payment performance personnel prepared printed printer problems procedures produce prototype purchase questions record key request REQUIREMENTS ANALYSIS responsible retrieve screen specific storage stored strategies systems analysts SYSTEMS DESIGN systems development systems requirements tape terminals testing tion transaction file update users Valley Industries vendor