Engineering processes involve chains of decisions for creating new representations of engineering objects or change existing ones. Effect of a new or changed definitions and model entities may affect more or less other existing entities or break earlier decisions and intent. The authors propose a method for behavior based analysis for situations modified by changes of the model environment. Associative solutions, behaviors, situations, circumstances, entities and attributes are defined and instanced on several levels of communication within an integrated model object and with objects in the outside world. The purpose of this paper is to discuss effects of modification and a new method for handling of these effects. Tracking and handling of changes and managing of processing of changes are outlined. Following this, a multilevel associativity based analysis of behaviors of modeled objects is proposed. Finally, new aspects of the work are concluded.