System Analysis and Design课件.ppt

QMIS331:Information System Analysis and Design (ISAD);Lecture Meeting and Location;Required Text Book;Course Objective;Chapter-1: The Systems Development Environment;Systems Theory;What is a System?;System Elements; Systems Can Be Composed of Subsystems;What is subsystem?;Bad Systems;Reasons for Failure;Important System Concepts;Important System Concepts;Computer-based Information Systems (CBIS) vs Manual Systems;CBIS Components ;Data and Information;Data flow and processing logic;Processing logic example;Databases;Levels of data managements;Traditional vs database approach;Traditional vs database approach;Approach to system development;Process-oriented approach An strategy to IS development that focuses on how and when data are moved through and changed by an IS Data-oriented approach An strategy to IS development that focuses on the ideal organization of data rather than where and how data are used. Object-oriented approach A system development methodologies and techniques base on objects rather than data or process ;Application independence; Example;Your Role and Other Organizational responsibilities in systems development;What is an Information Systems?;A SYSTEM THAT PROVIDES THE INFORMATION NEEDED TO ACCOMPLISH THE ORGANIZATION’S TASKS;Information System Types;Transaction Processing Systems (TPS) ;Management Information Systems (MIS);Decision Support systems(DSS) ;Expert System and Artificial Intelligence (ES AI);Information Systems Applications;System development for different IS types;System development for different IS types;System development for different IS types;System development for different IS types;Stakeholders: Players in the Systems Game;Stakeholders Classification;IS Manger in Systems Development;Systems Analysts;Skills of a Successful Systems Analyst;Skills of a successful systems analyst;The analyst is responsible;Variations on the Systems Analysts Title;The Systems Analyst as a Facilitator;Skills Required by Systems Analysts;Prog