Successful aging has become an increasingly popular concept in light of population aging worldwide. Understanding resilience is integral to identifying factors that facilitate successful aging in individuals. Yet, current literature on resilience lacks a common framework and clarity of concepts. In this paper, we develop and describe a single consolidated framework that allows for empirical investigation of life course trajectories of functional ability in individuals. By implementing precise variables in the framework, explicit definitions are given to the factors affecting the life course trajectory and thus resilience. This model can then be used as a boundary object for further discussion within the field. In doing so, potential interventions to increase resilience can also be identified.