Operations and support (O&S) costs for human spaceflight have not received the same attention in the cost estimating community as have development costs. This is unfortunate as O&S costs typically comprise a majority of life-cycle costs (LCC) in such programs as the International Space Station (ISS) and the now-cancelled Constellation Program. Recognizing this, the Constellation Program and NASA HQs supported the development of an O&S cost model specifically for human spaceflight. This model, known as the Exploration Architectures Operations Cost Model (ExAOCM), provided the operations cost estimates for a variety of alternative human missions to the moon, Mars, and Near-Earth Objects (NEOs) in architectural studies. ExAOCM is philosophically based on the DoD Architecture Framework (DoDAF) concepts of operational nodes, systems, operational functions, and milestones. This paper presents some of the historical background surrounding the development of the model, and discusses the underlying structure, its unusual user interface, and lastly, previous examples of its use in the aforementioned architectural studies.


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    Title :

    Modeling Operations Costs for Human Exploration Architectures


    Contributors:

    Conference:

    AIAA SPACE 2013 Conference & Exposition ; 2013 ; San Diego, CA, United States


    Publication date :

    2013-09-10


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English






    Modeling Operations Costs for Human Exploration Architectures (AIAA 2013-5489)

    Shishko, R. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2013