information technonolgy

1.  You are to argue why the traditional waterfall method is the best systems development methodology. Be sure to support your answer with in-text citations and quality references. (25 points) 

2. Discuss the advantages and disadvantages of prototyping applicable to systems development. The development methodology used is not to be considered and is not relevant in your response. Be sure to support your answer with in-text citations and quality references. (25 points)

3.  Discuss Data Flow Diagrams (DFDs). What are they? What are the advantages and disadvantages of using DFDs in the Requirements Definition? Your discussion about the advantages and disadvantages is to discuss Context Level Data Flow Diagrams, levels of data flow diagrams (level 1, level 2, level 3, etc.), including the differences between each level, leveling diagrams, and the relationship of the data dictionary and DFDs. Be sure to support your answer with in-text citations and quality references. (25 points)

4.  List and discuss three interactive methods and three unobtrusive methods for obtaining information requirements. Select one of the six methods and explain why you believe it is the best method for obtaining requirements with support for your method. Be sure to support your answer with in-text citations and quality references. (25 points)