Abstract: The subject disclosure relates to lifecycle management for business models associated with a business application as well as implementations of the business models. As described herein, a framework is provided in which business models can be built using modeling tools. The framework defines a separation of models from implementations and their relationships. Support is provided for translation of a business model to an implementation automatically and/or manually using development tools. Further embodiments herein define relationships of models to their implementations at various levels of granularity. Relationships can be defined and maintained at various granularity levels of a business application with different addressable granularity of an implemented application. These relationship associations can be used as described herein for tracking and managing changes in an implementation that may affect an associated model and vice versa.