tailieunhanh - Lecture Systems Analysis and Design in a Changing World (3rd Edition) - Chapter 5: Modeling systems requirements

Learning objectives for chapter 5: Explain the many reasons for creating information system models, describe three types of models and list some specific models used for analysis and design, explain how events can be used to define system requirements, | Chapter 5: Modeling Systems Requirements: Events and Things Systems Analysis and Design in a Changing World, 3rd Edition Learning Objectives Explain the many reasons for creating information system models Describe three types of models and list some specific models used for analysis and design Explain how events can be used to define system requirements Identify and analyze events to which a system responds Recognize that events trigger system activities or use cases Learning Objectives (continued) Explain how the concept of things in the system also defines requirements Explain the similarities and the differences between data entities and objects Identify and analyze data entities and objects needed in the system Read, interpret, and create an entity-relationship diagram Read, interpret, and create a class diagram Overview Document functional requirements by creating models Models created during analysis phase activity: Define system requirements Two concepts define system requirements in traditional approach and object-oriented approach Events Things Models and Modeling Analyst describes information system requirements using a collection of models Complex systems require more than one type of model Models represent some aspect of the system being built Process of creating model helps analyst clarify and refine design Models assist communication with system users Reasons for Modeling Types of Models Different types of models are used in information systems development Mathematical - formulas that describe technical aspects of the system Descriptive - narrative memos, reports, or lists that describe aspects of the system Graphical - diagrams and schematic representations of some aspect of the system Overview of Models Used in Analysis and Design Analysis phase activity named “define system requirements” Logical models Provide detail without regard to specific technology Design phase Physical models Provide technical details Extend . | Chapter 5: Modeling Systems Requirements: Events and Things Systems Analysis and Design in a Changing World, 3rd Edition Learning Objectives Explain the many reasons for creating information system models Describe three types of models and list some specific models used for analysis and design Explain how events can be used to define system requirements Identify and analyze events to which a system responds Recognize that events trigger system activities or use cases Learning Objectives (continued) Explain how the concept of things in the system also defines requirements Explain the similarities and the differences between data entities and objects Identify and analyze data entities and objects needed in the system Read, interpret, and create an entity-relationship diagram Read, interpret, and create a class diagram Overview Document functional requirements by creating models Models created during analysis phase activity: Define system requirements Two concepts define system

• Kỹ thuật lập trình
• Systems Analysis
• Design in a Changing World
• Modeling systems requirements
• Systems development
• Information system models
• System requirements
• Information systems
• Systems design
• Introduction to systems analysis and design
• Model driven analysis
• Accounting information systems
• Hệ thống thông tin kế toán
• Lecture Accounting information systems
• Systems development life cycle
• Analysis modeling
• Design modeling
• Systems development methodologies
• Unified process
• Object oriented analysis
• Object modeling
• Feasibility analysis
• The system proposal
• System development
• Information systems development
• Model driven strategy
• Systems construction
• Implementation phase
• Accounting information systems
• Lecture Accounting information systems
• Systems Analysis and Design
• Assuming the Role of the Systems Analyst
• Integrating New Technologies into Traditional Systems
• Web Systems
• Wireless Systems
• Open Source Software
• Types of information systems
• Internal system users
• Business process redesign
• Project management
• Process management
• Fact finding techniques
• Requirements discovery
• Modeling system requirements
• Use case modeling
• Data modeling
• Entity relationship diagram
• Process modeling
• Application architecture
• Physical data flow diagram
• Database design
• Data architecture
• Output design
• Internal outputs
• Input design
• Input implementation methods
• User interface design
• Human engineering guidelines
• Object oriented design
• Design classes