When you’ve established the first six stages, you can move on to data collection. Depending on the mode of data collection, this part of the process can require large amounts of personnel and a significant portion of your budget. Personal (face-to-face) and telephone interviews may require you to use a data collection agency (field service). Internet surveys require fewer personnel, are lower cost, and can be completed in days rather than weeks or months. Regardless of the mode of data collection, the data collection process introduces another essential element to your research project: the importance of clear and constant communication.