Modern Tools to Support DoD Software Intensive System of Systems Cost Estimation
نویسنده
چکیده
.............................................................................................................................. 1 Acknowledgements............................................................................................................. 1 1.0 Executive Summary ................................................................................................ 2 2.0 Introduction............................................................................................................. 4 2.1. Purpose................................................................................................................ 4 2.2. Intended Audience .............................................................................................. 4 3.0 Motivation and Context .......................................................................................... 5 3.1. Motivation for developing system of systems .................................................... 5 3.2. Nature and definition of “system of systems” .................................................... 5 Inadequacy of traditional cost models in estimating system of systems costs ......... 11 4.0 Approaches to SISOS Cost Estimation................................................................. 13 4.1. Architecture-based estimates using parametric models.................................... 13 4.2. Activity-based estimation ................................................................................. 13 4.3. Level of effort ................................................................................................... 13 4.4. Rough order of magnitude ................................................................................ 13 5.0 Elements of a System of Systems Cost Model ..................................................... 14 6.0 COSOSIMO Parameters ....................................................................................... 17 6.1. Overview........................................................................................................... 17 6.2. COSOSIMO PRA Parameters .......................................................................... 18 PRA Size Drivers...................................................................................................... 18 PRA Cost Drivers ..................................................................................................... 19 6.3. COSOSIMO SO Parameters ............................................................................. 23 SO Size Drivers......................................................................................................... 24 SO Cost Drivers ........................................................................................................ 24 6.4. COSOSIMO I&T Parameters ........................................................................... 29 I&T Size Drivers....................................................................................................... 29 I&T Cost Drivers ...................................................................................................... 30 7.0 An Initial Stage-wise SoS Cost Estimation Model ............................................... 37
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