The purpose of the pre-coordination phase is to ensure a uniform basis for detail engineering and interface agreement between the yard, owner, different suppliers and designer. This coordination phase is important as the last check concerning system redundancy and availability. This phase is also called integration design.
Space reservations will be checked and necessary definitions for location of various main items will be accomplished. The ship wide routing of piping, ducting and cabling will be made to prevent any discontinuity in design in way of areas of interface.
The basic design diagrams for piping, main cable trays and ventilation ducts will be brought on top of space arrangements and layouts, taking into consideration the structural arrangement as well.
Detail design and engineering is to be carried out in accordance with the selected building method. Normally hull, machinery and piping are taken care of by the yard and the rest by the area and system suppliers. However, this depends on the selected shipyard. Detail/Production design is typically carried out by the yard and/or together with designers.
Some of the more complicated areas should be designed by using 3-D tools, typical examples being: hull structures, engine room, casing, bridge, auxiliary engine room, etc.
Basic and detail design schedules are often overlapping. The detail design ends in Production start-up.
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