ePart 1 Best Practice BIM: Seeking to get BIM right? This ePart provides a touchstone for good practice by introducing a number of Key Performance Indicators (KPIs), which represent benchmarks for successful BIM implementation.. ePart 1 Best Practice BIM: Seeking to get BIM right? This ePart provides a touchstone for good practice by introducing a number of Key Performance Indicators (KPIs), which represent benchmarks for successful BIM implementation.