ShipConstructor Software Inc. (SSI), in collaboration with its US-based subsidiary ShipConstructor Software USA, Inc., the National Shipbuilding Research Program (NSRP), and several US shipyards including Northrop Grumman Shipbuilding (NGSB), has reached another milestone in the effort to create further cost savings for their clients. With the introduction of its online sharing site SC4D (http://SC4D.ShipConstructor.com), SSI is now providing the means to create and share 4D outfitting CAD models via the Internet.