could you please answer as points not paragraph.

A local retailer has hired Geneva and Sydney to develop her new information system. She is not sure what type of system she wants, but it must be completed in four months and she needs to know regularly that the project is on schedule. Geneva and Sydney feel they should use the Waterfall Development methodology for constructing the system. Advice. List THREE unique reasons (based on the information given in this question) to justify your advice.

Kristin, a systems analyst, needs to know detailed information about the accounts receivable process, but she is not concerned with accounts payable or general ledger, or the integration of this information. Her analysis will assist her in designing a To-Be system for the accounts receivable department. What would be the appropriate information gathering technique for this situation? Justify with 2 specific reasons (based on the information given in this question).