The collection of data is essential to any evaluation plan. This information allows you to analyze performance and adjust as necessary. The data needed will vary depending on the type of project, but can include anything from financial statements to customer feedback and other metrics such as ROI (e.g.).
In conclusion, having a well-defined evaluation plan is essential when it comes measuring success/failure of any initiative as this not only allows organisations check if they’re achieving desired results but also provides opportunity identify areas which require improvement so that maximum benefit can be obtained moving forward.