In one example, a system is provided to determine the impact of implementing a change request on a software program. The system may include an architecture model of the software program that includes components. Each of the components may have attributes that may be used by the system to determine a degree of effort to modify each respective one of the components. Components may be associated with keywords. The system may search the change request for the keywords to identify components that may be impacted by the change request. The system may determine the degree of effort to modify any impacted component based on the architecture model. The system may determine the overall impact on the software program based on the degree of effort determined for the impacted components.