tailieunhanh - Lecture Accounting information systems - Chapter 20: Introduction to systems development and systems analysis

This chapter explain the five phases of the systems development life cycle, discuss the people involved in systems development and the roles they play, explain the importance of systems development planning and describe planning techniques, discuss the various types of feasibility analysis and calculate economic feasibility. | Chapter 20 Introduction to Systems Development and Systems Analysis Copyright © 2012 Pearson Education 20-1 Learning Objectives Explain the five phases of the systems development life cycle. Discuss the people involved in systems development and the roles they play. Explain the importance of systems development planning and describe planning techniques. Discuss the various types of feasibility analysis and calculate economic feasibility. Explain why system changes trigger behavioral reactions, What form this resistance to change takes, and how to avoid or minimize the resulting problems. Discuss the key issues and steps in systems analysis. Copyright © 2012 Pearson Education 20-2 Why Update Systems? User or business changes Technology changes To improve business process Create competitive advantage Increase productivity gains Integrate multiple systems Aging systems need replacement Copyright © 2012 Pearson Education 20-3 Software Development Problems Most software development . | Chapter 20 Introduction to Systems Development and Systems Analysis Copyright © 2012 Pearson Education 20-1 Learning Objectives Explain the five phases of the systems development life cycle. Discuss the people involved in systems development and the roles they play. Explain the importance of systems development planning and describe planning techniques. Discuss the various types of feasibility analysis and calculate economic feasibility. Explain why system changes trigger behavioral reactions, What form this resistance to change takes, and how to avoid or minimize the resulting problems. Discuss the key issues and steps in systems analysis. Copyright © 2012 Pearson Education 20-2 Why Update Systems? User or business changes Technology changes To improve business process Create competitive advantage Increase productivity gains Integrate multiple systems Aging systems need replacement Copyright © 2012 Pearson Education 20-3 Software Development Problems Most software development projects deliver less, cost more, and take longer than expected. Standish Group found that: 70 percent of software development projects were late 54 percent were over budget 66 percent were unsuccessful 30 percent were canceled before completion American Management Systems found that: 75 percent of all large systems are not used Not used as intended, or Generate meaningless reports or inaccurate data Copyright © 2012 Pearson Education 20-4 Systems Development Life Cycle (SDLC) Copyright © 2012 Pearson Education 20-5 SDLC Steps System Analysis Information about system needs, costs, and so on are gathered. Conceptual Design Gather system/user requirements. Physical Design Concepts are translated into detailed specifications. Implementation and Conversion New hardware and software are installed and tested. Employees are hired and trained or existing employees relocated. Processing procedures are tested and modified. Standards and controls for the new system are established and system .

• Kế toán - Kiểm toán
• Accounting information systems
• Hệ thống thông tin kế toán
• Lecture Accounting information systems
• Systems development
• Systems analysis
• Systems development life cycle
• Business system development
• Information systems
• Information systems analysis
• Application software
• Accounting information systems
• Lecture Accounting information systems
• Decision Support Systems
• Decision Support System Development
• System development life cycle Tools
• Alternative development methodologies
• DSS development methodology
• DSS technology levels
• Design with UML
• Object oriented approach
• Systems development methodologies
• Object oriented systems analysis
• Analysis modeling
• Design modeling
• Unified process
• Business processes
• AIS development
• Project management
• Design in a Changing World
• Traditional approach
• Capability maturity model
• IT decision factors