Dayton MIS 385 - Development (37 pages)

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Development



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Development

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Pages:
37
School:
University of Dayton
Course:
Mis 385 - Systems Implementation with Database Management Systems

Unformatted text preview:

MIS 385 MBA 664 Systems Implementation with DBMS Database Management Dave Salisbury salisbury udayton edu email http www davesalisbury com web site Information Systems Architecture A conceptual blueprint or plan that expresses the desired future structure for the information systems in an organization Architecture example Business Operations Customers Suppliers External Events Integrated data warehouse CIM EDI External database access Data validation and retention Access analysis presentation Tools Information delivery system Decision makers Customers Suppliers A more sophisticated example 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 Information Engineering An Information Systems Architecture is developed by IS planners following a particular methodology such as Information Engineering Information Engineering Data oriented methodology Uses top down planning in which specific information systems are deduced from a broad understanding of organization s information needs rather than relying on specific user information requests Offers perspective on relationship of information systems to business objectives 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 Bottom Up Planning A methodology that identifies and defines IS development projects based upon solving operational business problems or taking advantage of business opportunities Information engineering Information systems planning Identify strategic planning factors goals CSFs problem areas Identify corporate planning objectives IT vision Information system architecture Develop enterprise model Systems analysis Systems design Implementation Systems Development Life Cycle



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