How to evaluate the effectiveness of recruitment

1. Quantity: Is the number of people required for recruitment sufficient? 2. Quality: Is the person recruited qualified (job matching is particularly important)? 3. Time: How long did the whole recruitment process last? 4. Cost: Is the selection of recruitment channels reasonable and how much is the recruitment cost? 5. Reliability and final effect evaluation. Other aspects, such as strategy selection, channel selection and so on.