tech summary Essay examples

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CHAPTER 13
1. How does building new systems produce organizational change?
• Describe each of the four kinds of organizational change that can be promoted with information technology.
1)Automation: improve efficiency and make manual steps not required
2)Rationalization: Streamline standard operating procedures
3)Business process reengineering: Analyze, simplify, and redesign business processes
4)Paradigm shifts: Rethink the nature of the business and the nature of organization.
• Define business process management and describe the steps required to carry it out.
Business process management: use various tools and methodologies to analyze existing processes, design new process, and optimize those processes and it can never be over
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2) Traditional structured approaches:
Traditional structured development methods are process-oriented, focusing primarily on modeling the processes.
It specifies the processes or transformations that occur within each module and the interfaces that exist between them.
4. What are the alternative methods for building information systems?
• Define the traditional systems life cycle.
The life cycle methodology is a phased approach to building a system, dividing systems development into formal stages.
Describe each of its steps and its advantages and disadvantages for systems building.
Steps: System analysis, System design, Programming, Testing, Conversion, Production and maintenance.
Advantages: Activities can be repeated to modify the wrong process
Disadvantages: it can be costly, time-consuming, and inflexible and it is not suitable for many small desktop systems.
• Define information system prototyping
The prototype is a working version of an information system or part of the system, which consists of building an experimental system rapidly and inexpensively for end users to evaluate.
Describe its benefits and limitations. List and describe the steps in the prototyping process.
Benefits:
Prototyping encourages intense end-user involvement throughout the systems development life cycle, it is more likely to produce systems that fulfill user requirements.
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