A systems building approach in which the system is developed as successive versions, each version reflecting requirements more accurately, is described to be

Studies have shown that though the design of a questionnaire is very important, it does not directly affect the quality of the data collected

Indicate whether the statement is true or false

Raintree Developers has been measuring its marketing return on investment (or marketing ROI) to assess its marketing performance for the past few years

Explain why this method may not accurately reflect the company's performance and what Raintree can use to better estimate its performance.