The present invention relates to a large-capacity light-weight model management system for merchant and marine vessels, and more specifically, converts the lightweight model data of the entire ship at night on the server and manages it to provide service immediately when a user requests the corresponding lightweight model. It relates to a large-capacity and lightweight model management system for commercial and marine vessels that can be performed. To this end, the present invention, in a large-capacity lightweight model management system of a collaborative system for the production of a ship building process based on a lightweight model using a digital mockup generator, accesses the CAD system, loads CAD data, and extracts and parses the lightweight model. And a conversion server that converts, a DB server that stores and manages information and data of the light weight model extracted from the conversion server, and a light weight model information and data managed by the DB server when connected to the DB server and requested by a user. The service, the web server provided with a file server shared with the conversion server, and finally stores the lightweight model data extracted and parsed from the conversion server, and is connected to the file server to load the lightweight model data. To the PMI server that generates dimension information and production information, and applies the generated dimension information and production information to the lightweight model data, and the file server connected to the file server when a user requests an interference test for a part of the line or the entire line. And a model interference server that retrieves the stored lightweight model data and loads the retrieved lightweight model data to perform interference testing.
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