S.O.B (Save Our Budget) - A Simulation-Based Method for Prediction of Acquisition Costs of Constituents of a System-of-Systems


  • Valdemar Vicente Graciano Neto Universidade Federal de Goiás (UFG)
  • Flávio Eduardo Aoki Horita Universidade Federal do ABC (UFABC)
  • Rodrigo Santos Universidade Federal do Estado do Rio de Janeiro (UNIRIO)
  • Davi Viana Universidade Federal do Maranhão (UFMA)
  • Mohamad Kassab Pennsylvania State University
  • Wallace Manzano Universidade de São Paulo (USP)
  • Elisa Yumi Nakagawa Universidade de São Paulo (USP)




Software economics, acquisition, and pricing are important con- cerns for Systems-of-Systems (SoS). SoS are alliances of independent software- intensive systems combined to offer holistic functionalities as a result of the con- stituents interoperability. SoS engineering involves separately acquiring con- stituents and combining them to form the SoS. Despite the existence of cost pre- diction techniques, predicting SoS acquisition costs at design-time should also include the analysis of different suppliers of constituents, their respective prices and quality. However, known methods cover only two out of these three param- eters. The main contribution of this article is to present the S.O.B. (Save Our Budget) method, a novel simulation-based method to predict, at design-time, the acquisition cost of constituents, while still considering quality attributes and different suppliers. Results of a case study in the Smart Building domain re- vealed that S.O.B. method supports a precise prediction of acquisition cost of constituents to build a SoS for that domain. Furthermore, it also contributes to estimate the cost based on a pre-established quality attribute (functional suit- ability), as well as to support the selection of coalition that exhibits better results through the analysis of cost-benefit ratio.


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How to Cite

Graciano Neto, V. V., Horita, F. E. A., Santos, R., Viana, D., Kassab, M., Manzano, W., & Nakagawa, E. Y. (2020). S.O.B (Save Our Budget) - A Simulation-Based Method for Prediction of Acquisition Costs of Constituents of a System-of-Systems. ISys - Brazilian Journal of Information Systems, 12(4), 6–35. https://doi.org/10.5753/isys.2019.779



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