Institutional self-evaluation processes for accreditation require reviewing and managing a large volume of documentation throughout all stages. This article introduces the concept of the Documentary Arch as a model that facilitates the efficient provision and use of documentary information in internal self-evaluation processes. Additionally, it presents the application of this model at a Chilean university during its most recent institutional self-evaluation process for accreditation. Finally, the concept's contributions, practical applicability, and challenges for using the Documentary Arch to improve university self-evaluation processes are analyzed.