Abstract: A method for plant efficiency evaluation includes a first step of displaying in a first graphical zone a set of operators and a set of operands in a second graphical zone. A formula editor user interface is provided in a third graphical zone which enables a drag and drop of an operator or an operand for creating a formula for a plant performance indicator (PPI) as a measure of plant efficiency. When an operand is dropped into the third graphical zone, automatically displaying for the dropped operand a predefined list of entities involved in a production process of the plant, the predefined list enabling a selection of an entity for said operand. Data are then automatically collected for selected entity for each operand that has been dragged and dropped in the third graphical zone, and the PPI is a automatically calculated from the formula and the collected data.

Abstract: A method for plant efficiency evaluation includes a first step of displaying in a first graphical zone a set of operators and a set of operands in a second graphical zone. A formula editor user interface is provided in a third graphical zone which enables a drag and drop of an operator or an operand for creating a formula for a plant performance indicator (PPI) as a measure of plant efficiency. When an operand is dropped into the third graphical zone, automatically displaying for the dropped operand a predefined list of entities involved in a production process of the plant, the predefined list enabling a selection of an entity for said operand. Data are then automatically collected for selected entity for each operand that has been dragged and dropped in the third graphical zone, and the PPI is a automatically calculated from the formula and the collected data.