In phase 1 of the system development life cycle, which of the following aspects are usually analyzed? A. outputs B. input (transactions) C. controls D. All of the above E. None of the above

The correct answer is: D. All of the above

In phase 1 of the system development life cycle, which is also known as the planning phase, the following aspects are usually analyzed:

• Outputs: The outputs of a system are the results that it produces. For example, the output of a payroll system might be a list of paychecks.
• Inputs (transactions): The inputs (transactions) to a system are the data that it needs to process in order to produce its outputs. For example, the inputs to a payroll system might be employee timesheets and pay rates.
• Controls: Controls are the mechanisms that are used to ensure the accuracy and reliability of a system. For example, a control in a payroll system might be a check digit that is used to verify the accuracy of employee numbers.

It is important to analyze all of these aspects in order to develop a system that meets the needs of the users.