2.2.1 Towards a Holistic, Total Engineering Cost Model

Abstract

Abstract. In this paper, we explore a new approach for a unified and interdisciplinary parametric model for estimating the total engineering effort in developing and delivering a software-intensive complex system. We begin by reviewing some of the limitations of using existing engineering discipline-focused tools for estimating total engineering cost and by articulating the benefits of such a holistic model. Applying a two step method combining heuristic analysis and data validation, we propose three hypotheses to expand the basic cost estimating relationship of COSYSMO, a systems engineering model, to the total engineering scope by including software size drivers. The implementation of the hypotheses and the validation approach are also discussed. We conclude the discussion by outlining the future work required to realize such a model and to apply it to supporting successful system development endeavours.

9.2.2 Quantifying Systems Engineering Reuse – a Generalized Reuse Framework in COSYSMO

“…We will be soliciting participation and feedback from the systems engineering as the model capability for DFR is refined. At the same time, effort is in progress to expand the proposed model to estimate the total engineering effort of a project, including not only the systems effort but the effort for all engineering disciplines [Wang, et al, 2009]…”

Developing Case‐Based Costs Estimation: A Recursive Approach and Case Study

“…that are typically only available in detailed design stages, and thus present difficulties for early-stage estimation that is known to be crucial for cost controls. In (Wang, G., et. al., 2009b), the authors expanded the basic cost estimating relationship of COSYSMO to the total engineering scope of software-intensive systems by including software size drivers.…”

Systems Engineering Success Factors for Capturing Contracts

“…For example, there is a guide for how to acquire systems that focuses extensively on systems engineering considerations [DAU, 2012] and a university that educates acquisition professionals on the proper processes to use when acquiring systems [DAU, 2014]. To date, the systems engineering literature written from the supplier perspective, that can be related to proposals, mainly focuses on estimating systems engineering costs [Fortune et al, 2009;Lane, 2009;Valerdi, 2005;Valerdi et al, 2007aValerdi et al, , 2007bWang et al, 2009aWang et al, , 2009b.…”