course resource(e-books):

1. 系统分析与设计

Lecture 0

Final score

• Exam (60%)
• Project (20%)
• Daily performance (20%)

Modelling Tools

• visual-paradigm.com

Lecture 1 System Introduction

What is system?

A system is a collaction of interrealted components that function together to achieve some outcome.

Types of information system

• DPS (Data Processing System)
  A data processing system is a combination of machines, people, and processes that for a set of inputs produces a defined set of outputs. The inputs and outputs are interpreted as data, facts, information etc. depending on the interpreter’s relation to the system.
• MIS (Management Information System)
  A management information system is an information system used for decision-making, and for the coordination, control, analysis, and visualization of information in an organization; especially in a company.
• DSS (Decision Support System)
  A decision support system is an information system that supports business or organizational decision-making activities. DSSs serve the management, operations and planning levels of an organization (usually mid and higher management) and help people make decisions about problems that may be rapidly changing and not easily specified in advance.
• ES (Expert System)
  In artificial intelligence, an expert system is a computer system that emulates the decision-making ability of a human expert. Expert systems are designed to solve complex problems by reasoning through bodies of knowledge, represented mainly as if–then rules rather than through conventional procedural code.
• OAS (Office Automation System)
  Office automation refers to the varied computer machinery and software used to digitally create, collect, store, manipulate, and relay office information needed for accomplishing basic tasks. Raw data storage, electronic transfer, and the management of electronic business information comprise the basic activities of an office automation system. Office automation helps in optimizing or automating existing office procedures.

Lecture 3 Business Requirements

Requirements Definition

• used to express what to do rather than how to do

Why

• Expertise
• Communication
• Stability
• Support
• Gap

Success Factors

• User involvement