The Software Upgrade Project will last for five weeks. All resources are required before the project can begin. The resource histogram below illustrates that design engineers are required to perform 40 hours per week per engineer for the first three weeks of the project. Their requirements are then scaled back to 5 hours per engineer in the fourth week. After the fourth week the design engineers will be released from the project. The implementation manager will also be released from the project after week 4. The training lead will be required to perform 15 hours of work in the first week and a full 40 hours of training during week 5.