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Learn about classification and major types of information systems at different organizational levels and functions. Discover how they support operations, management, and strategic decision-making.
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IT in the Businesses Lecture 2
Classification of Information Systems • Organizational Level • Business Functions /Interests/Speciality • Supported Business Process(s) Information Systems serve different management levels and major business functions
Categories of Information System Types of Information Systems
Operational Level Systems • Support Operational Managers • Keep track of elementary activities and transactions of the organization • E.g. Sales receipts, cash deposits, payroll, daily log maintenance, the flow of materials in a factory and query management in a service firm etc.
Knowledge/Management Level Systems • Support Middle Managers • Monitoring, controlling, decision-making, and administrative activities • Provide periodic reports rather than instant information on operations • Attrition Reporting System, Planned Vs. Actual Reports etc.
Strategic Level Systems • Support Senior Management • Help tackling and addressing strategic issues and long term trends related to the firm and external environment. • The principle concern is matching changes in the external environment with the existing organizational capability. • E.g. Employment level and capacity planning for next 3-5 years, long term industry cost trends, product and services focus for the next 5 years etc.
Major Types of Systems Major Types of Systems • Executive Support Systems (ESS) • Decision Support Systems (DSS) • Management Information Systems (MIS) • Knowledge Work Systems (KWS) • Office Systems • Transaction Processing Systems (TPS)
Major Types of Systems • Transaction Processing Systems (TPS): • Basic business systems that serve the operational level • A computerized system that performs and records the daily routine transactions necessary to the conduct of the business • E.g. Employee record keeping, sales order entry etc. • Central to business – TPS failure for few hours can lead to a firms demise – Airlines without computerized • Reservation systems??
Major Types of Systems Payroll TPS
Major Types of Systems Types of TPS Systems
Major Types of Systems Knowledge Work Systems (KWS): Knowledge level • Inputs:Design specs • Processing:Modeling • Outputs:Designs, graphics • Users:Technical staff and professionals Example: Engineering work station
Major Types of Systems Management Information System (MIS): • Serve the management level of the organization • Provides managers with summaries and reports on the company’s basic operations on regular schedule • Internal orientation not environmental/external • Generally not flexible and have little analytical capability • Use simple routines (E.g. summaries and comparisons) as apposed to sophisticated mathematical models /statistical techniques.
Major Types of Systems Management Information System (MIS): Management level • Inputs: High volume data • Processing: Simple models • Outputs: Summary reports • Users: Middle managers Example: Annual budgeting
Major Types of Systems Management Information System (MIS)
Major Types of Systems Decision Support System (DSS): • Serve the management level of the organization • Help managers make decisions that are unique, rapidly changing and not easily specified in advance. • Address problems where the procedure for arriving at a solution may not be fully defined in advance. • Use both internal and external sources of information • Also referred to business intelligence • More analytical power, interactive and user friendly
Major Types of Systems Decision Support System (DSS): Management level • Inputs: Low volume data • Processing: Interactive • Outputs: Decision analysis • Users: Professionals, staff Example: Contract cost analysis
Major Types of Systems Decision Support System (DSS)
Major Types of Systems Decision Support System (DSS)
Major Types of Systems Executive Support System (ESS): • Used by Senior/Strategic Management • They address non-routine decisions requiring judgments, evaluation and insight as there is no agreed-on procedure for arriving at a solution • Incorporate data about external events and draw summarized information from internal MIS, DSS. • General computing/communications capacity applied to an array of problems not just specific problems • E.g. What are competitors going? New acquisitions? etc
Major Types of Systems Executive Support System (ESS): Strategic level • Inputs: Aggregate data • Processing: Interactive • Outputs: Projections • Users: Senior managers Example: 5-year operating plan
The Information Technology Executive Support System (ESS)
The Information Technology • Top level management • Designed to the individual • Ties CEO to all levels • Very expensive to keep up • Extensive support staff Executive support system (ESS)
Systems Functional Perspective Sales and Marketing Systems
Systems Functional Perspective Major functions of systems: • Scheduling, purchasing, shipping, receiving, engineering, operations Major application systems: • Materials resource planning systems, purchase order control systems, engineering systems, quality control systems Manufacturing and Production Systems
Systems Functional Perspective Manufacturing and Production Systems
Systems Functional Perspective Major functions of systems: • Budgeting, general ledger, billing, cost accounting Major application systems: • General ledger, accounts receivable, accounts payable, budgeting, funds management systems Financing and Accounting Systems
Systems Functional Perspective Financing and Accounting Systems
Systems Functional Perspective Major functions of systems: • Personnel records, benefits, compensation, labor relations, training Major application systems: • Payroll, employee records, benefit systems, career path systems, personnel training systems Human Resource Systems
Systems Functional Perspective Human Resource Systems
Enterprise Applications Business processes • Sets of logically related activities for accomplishing a specific business result. • Manner in which work is organized, coordinated, and focused to produce a valuable product or service • Concrete work flows of material, information, and knowledge—sets of activities Business Processes and Information Systems
Enterprise Applications • Unique ways to coordinate work, information, and knowledge • Ways in which management chooses to coordinate work Business Processes and Information Systems
Enterprise Applications Information systems help organizations • Achieve great efficiencies by automating parts of processes • Rethink and streamline processes Business Processes and Information Systems
Enterprise Applications • Manufacturing and production: Assembling product, checking quality, producing bills of materials • Sales and marketing: Identifying customers, creating customer awareness, selling Examples of Business Processes
Enterprise Applications • Finance and accounting: Paying creditors, creating financial statements, managing cash accounts • Human Resources: Hiring employees, evaluating performance, enrolling employees in benefits plans Examples of Business Processes
Enterprise Applications Cross-Functional Business Processes • Transcend boundary between sales, marketing, manufacturing, and research and development • Group employees from different functional specialties to a complete piece of work Example: Order Fulfillment Process Business Processes and Information Systems
Enterprise Applications The Order Fulfillment Process
Enterprise Applications Enterprise Applications • Enterprise systems • Supply chain management systems • Customer relationship management systems • Knowledge management systems
Enterprise Applications • Within the business:There are functions, each having its uses of information systems • Outside the organization’s boundaries:There are customers and vendors Functions tend to work in isolation Traditional View of the Systems
Enterprise Applications Traditional View of the Systems
Enterprise Applications Enterprise Systems