MIS 2403-Chapter 2-Instructor's Notes-Spring 2002

MIS 2403-Chapter 2-Instructor's Notes-Spring 2002 -...

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Database Development Process Chapter 2 MIS 2403 Dr. Segall Spring 2002
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2 Information Systems Architecture “A conceptual  blueprint or plan  that expresses the  desired future  structure for the  information  systems in an  organization.”
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3 Information Systems Architecture Key components: data processes  which manipulate data network   which transports data people   who perform processes and send and  receive data events and points in time   when processes  are performed reasons   for events and rules which govern  data processing
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4 Information Engineering “An Information  Systems Architecture  is developed by IS  planners following a  particular  methodology   such as  Information  Engineering .”
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5 Information Engineering Data -oriented methodology Uses top-down  planning in which specific  information systems are  deduced  from a  broad understanding of organizational  information needs, rather than relying on  specific user information requests Offers perspective on relationship of  information systems to business objectives
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6 Top-Down vs. Bottom-Up Top-Down  Planning : “A methodology that  attempts to gain a  broad understanding  of the information  system needs of the  entire organization”
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MIS 2403-Chapter 2-Instructor's Notes-Spring 2002 -...

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