Knowledge based methodology is one of the primary areas of development in engineering
problem solving methods for decades. In the meantime, product definition has been
moved into model space. Establishment of the STEP (Standard for the Exchange of Product
Model Data, ISO 10303) product model standard and it application at leading industries
during 90's facilitated development of model based integrated solutions for product
engineering. During the past decade, the new paradigm of product lifecycle management
stimulated integrated handling of information for lifecycle of products. Product model
has become a medium in communication between end users of engineering systems including
humans and controlled equipment. One of the most critical elements in this scenario
is communication of knowledge with product modeling processes in order to generate
knowledge background of engineering object definition in product model. This paper
introduces a method by the authors to extract knowledge background during definition
of product objects in the form of initiated affect on product. Human thinking process
is modeled by its elements during definition of intent for a change of a product.
Evolving steps towards the defined object changes and the served objectives for the
defined objects are recorded. Following this, process for the definition of coordinated
product behaviors and affect propagation in a specific and purposeful change affect
zone are explained. Finally, an extended product definition space is explained as
medium in integrated product modeling using the proposed method
