Performance Variability and Project Dynamics

Bernardo A. Huberman () and Dennis M. Wilkinson ()
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Bernardo A. Huberman: HP Labs
Dennis M. Wilkinson: HP Labs

Computational and Mathematical Organization Theory, 2005, vol. 11, issue 4, No 2, 307-332

Abstract: Abstract We present a dynamical model of complex cooperative projects such as large engineering design or software development efforts, comprised of concurrent and interrelated tasks. The model contains a stochastic component to account for temporal fluctuations both in task performance and in the interactions between related tasks. We show that as the system size increases, so does the average completion time. Also, for fixed system size, the dynamics of individual project realizations can exhibit large deviations from the average when fluctuations increase past a threshold, causing long delays in completion times. These effects are in agreement with empirical observation. We also show that the negative effects of both large groups and long delays caused by fluctuations may be mitigated by arranging projects in a hierarchical or modular structure. Our model is applicable to any arrangement of interdependent tasks, providing an analytical prediction for the average completion time as well as a numerical threshold for the fluctuation strength beyond which long delays are likely. In conjunction with previous modeling techniques, it thus provides managers with a predictive tool to be used in the design of a project's architecture.

Keywords: team performance; team dynamics; large cooperative projects; stochastic dynamics (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (3)

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DOI: 10.1007/s10588-005-5587-5

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