GLPI (Gestionnaire Libre de Parc Informatique) is open source software designed to help organizations manage their IT assets and IT infrastructure. It allows users to manage their IT: Track and inventory software, hardware, and licenses; Automate IT helpdesk tasks; Monitor IT assets; Manage IT services; Manage access rights; and more. GLPI provides an interface that allows users to quickly and easily view and manage all of their IT assets, as well as the associated tasks and processes. The software is designed to be highly configurable, making it easy to tailor to specific organization's needs. Additionally, GLPI includes a range of third-party plugins that can further extend its capabilities.
Ralph is a good replacement for GLPI as far as IT asset management is concerned. However, it will not replace it for ticketing systems.