This paper deals with the way constructors of a fleet of complex systems, and especially, in the field of transportation, aim to improve the availability and the maintainability of their fleet during their use, fleet operated by a public operator or a private company. More precisely, the focus is set on the architecture of the data management system that supports this aim. In this context, this paper presents a literature review on the main existing approaches that address the architecting of the data management of fleet or a set of transportation systems with the target to improve directly or indirectly their availability or maintainability. For that purpose, a positioning typology is suggested, which enables to identify, characterize and evaluate the state-of-the-art from the point of view of an industrialist working in the transportation sector. A set of future research challenges are finally suggested.