System Analysis And Design: Rarely a perfect fit with business needs

1-The Packaged Software has a property, “Rarely a perfect fit with business needs”. What do you mean by this property? Explain in your own sentences.

2-In terms of client-server architectures, can you explain the difference between the two-tier, three-tier, and n-tier?
3-Visit a commercial Web site (e.g., CDnow, Amazon.com).  If files were being used to store the data supporting the application, what types of files would be needed?  What data would they contain?
4- Distinguish between transaction structures and transform structures on a structure chart. Can we have one module that will be a part of both types of structures? Satisfy your answer.
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