 The client usually provides the engineering company with a scoping document listing the details of the objective in terms of such things as production rate and product specifications and general to specific information about processes and equipment to be used and the expected deliverables, such as calculations, drawings, lists, specifications, schedules, etc.The client is typically involved in the entire design process and makes decisions throughout, including the technology, type of equipment to use, bid evaluation and supplier selection, the layout of equipment and operational considerations.Depending on the project the engineering company may perform material and energy balances to size equipment and to quantify inputs of materials and energy (steam, electric power, fuel).