PART I Foundations of Information Systems in Business Session 2 Concept of Information S ystems
HUANG Lihua, Fudan University Session 2 Concept of Information Systems PART I Foundations of Information Systems in Business
What is a SYSTEM? A system is a group of interrelated components working together toward a common goal by accepting inputs and producing outputs in an organized transformation process Components and their attribution Systems structure: relationship between components Systems structure Subsystems Environment and boundary Input and Output S1 Subsystems S2 Systems Boundary Systems Input $4 S3 Output Environment
HUANG Lihua, Fudan University Feb., - July., 2005 What is a SYSTEM? • A system is a group of interrelated components working together toward a common goal by accepting inputs and producing outputs in an organized transformation process. – Components and their attribution • Systems structure: relationship between components • Subsystems – Environment and Boundary – Input and Output S1 S2 S3 S4 Systems structure Subsystems Systems Boundary Environment Systems Input Output
Abstract Concept of a systems INPUT PROCESS OUTPUT FEEDBACK
HUANG Lihua, Fudan University Feb., - July., 2005 Abstract Concept of a Systems INPUT PROCESS OUTPUT FEEDBACK
EXample: a manufacturing system INPUT Manufacturing OUTPUT of of raw materials PROCESS finished products Control signals …5 Management%冬灬…% Contre Feedback/ Control by k Feedback System Boundary Environment
HUANG Lihua, Fudan University Feb., - July., 2005 Example: a manufacturing system INPUT of raw materials OUTPUT of finished products Manufacturing PROCESS Control by Management Control signals Control signals Feedback signals Feedback signals System Boundary Environment
O Pottery Company Organization Systems INPUT PROCESS OUTPUT Control …5 Management%冬灬…% Contre signals Feedback/ Control by k Feedback System Boundary Environment
HUANG Lihua, Fudan University Feb., - July., 2005 Pottery Company Organization Systems INPUT PROCESS OUTPUT Control by Management Control signals Control signals Feedback signals Feedback signals System Boundary Environment
Systems Category in Pottery Company systems Organization System Infrastructure System Function Systems Plant system Manufacturing system Machine system Sell system Procurement System · Information systen HR System Informal is. formal is Finance System formal computer-based IS Product design system Logistics System, ° Capital system
HUANG Lihua, Fudan University Feb., - July., 2005 Systems Category in Pottery Company Systems • Organization System • Function Systems – Manufacturing System – Sell System – Procurement System – HR System – Finance System – Product design System – ……. • Infrastructure System – Plant system – Machine system – …… • Information system – Informal IS, formal IS, formal computer-based IS • Logistics System, • Capital system
What is an Information Systems? An information system can be any organized combination of people, hardware software communications network and data resources that collects transforms and disseminates information in an organization
HUANG Lihua, Fudan University Feb., - July., 2005 What is an Information Systems? • An information system can be any organized combination of people, hardware, software, communications network, and data resources that collects, transforms, and disseminates information in an organization
Components of an Information System People Control Data Input Process Output Software Memory computer netwo k
HUANG Lihua, Fudan University Feb., - July., 2005 Components of an Information System Control Input Process Memory Output Data People Software network computer
Information Systems In Pottery Company System People hardware SoftwareData Network resources resources resources resources resources Specialists Machines ProgramsData Communicati End users Media Procedure entities on hardware Communicati and on software attribution Information Product
HUANG Lihua, Fudan University Feb., - July., 2005 Information Systems In Pottery Company • System: • Information Product: People resources hardware resources Software resources Data resources Network resources Specialists End users Machines Media Programs Procedure Data entities and attribution Communicati on hardware Communicati on software
Information Systems Activities · Input of data Manual input by key, scanning, sound, image Processing of Data into Information Calculate, sort, find, report, disseminate Output of Information Products Report, display, suggestion, Storage of Data resource Database. data file. maintenance Control of System Performance Audit
HUANG Lihua, Fudan University Feb., - July., 2005 Information Systems Activities • Input of Data – Manual input by key, scanning, sound, image,… • Processing of Data into Information – Calculate, sort, find, report, disseminate…… • Output of Information Products – Report, display, suggestion, …… • Storage of Data Resource – Database, data file, maintenance, ….. • Control of System Performance – Audit, ……
