Abstract: A lean product modeling system (LPM system). The LPM system includes a plurality of modeling objects representing multiple perspectives of the product, a plurality of corresponding modeling object properties identifying characteristics of those product modeling objects which are used to configure product simulations, and a plurality of corresponding modeling object property data items that define those characteristics and are reflected in product simulations and analyses. All product modeling objects may be linked in an integrated product knowledge model that reflects ontological characteristics of the product or the application as a service and a corresponding operational environment. The integrated product knowledge model defines an authoritative source for any specific corresponding modeling object within the plurality of corresponding modeling objects.