Perform this activity when you want to add a new resource group to the system. All resources you use must be defined as resource groups within each company. A typical resource group can be electrical engineer, mechanical engineer, carpenter, plants, machines, etc. You can also think of the resource group as one person. Each resource group has a capacity and a cost. Both capacity and cost can change over time and you are able to add infinite different capacities and costs divided by dates.
If you are using Primavera Project Planner, you should remember that only six resource capacities/costs per resource group can be exported to Primavera.
You are able to connect resources to activities and perform rough capacity planning on your project.