Explain the purpose and function of each layer within the IE methodology

1. Define Jackson systems development (JSD) and describe the main tools and techniques used within the JSD methodology.

2. Outline the three generic stages to systems development within the JSD methodology and explain the importance of modelling within the scope and remit of the JSD approach.

 

1. Define the information engineering (IE) method for developing information systems and describe the tools and techniques that would be used within the IE method.

2. Describe the four layers of IE and explain the purpose and function of each layer within the IE methodology

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