This guide is developed to provide weight classification guidance and process improvements to augment the U.S Navy’s 1985 Edition of the Expanded Ship Work Breakdown Structure (ESWBS). In recent years naval architects and shipbuilders have introduced new technologies into ship designs and construction practices.
The current ESWBS classification does not provide adequate guidance on how to use the weight classification for new technologies, systems, and practices. As a result, SAWE and SNAME jointly set up a workshop(s) to identify and provide guidance to address the proper classification of these newer systems for the appropriate assignments in the weight estimates for future ships as well as to provide a means to cross reference previous historical weight data. Also, the workshop(s) reviewed the current ESWBS and recommended modifications to help ensure that the potential of duplications, missed classification of weight data, inconsistencies within ESWBS, and provide greater clarification in the future as well as assist in cross referencing of historical weight data. A technical paper and presentation were made at SAWE’s Annual International Conference in 2015 [1], which documented the initial findings of the workshop.
This guide is a result of over a ten-year effort and is intended to be used as guidance to augment the classification of weight reporting using the 1985 Edition of ESWBS [2].