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- W4315491048 abstract "Abstract Projects are characterised by activity networks with a critical path, a sequence of activities from start to end, that must be finished on time to complete the project on time. Watching over the critical path is the project manager’s strategy to ensure timely project completion. This intense focus on a single path contrasts the broader complex structure of the activity network, and is due to our poor understanding on how that structure influences this critical path. Here, we use a generative model and detailed data from 77 real world projects (+ $10 bn total budget) to demonstrate how this network structure forces us to look beyond the critical path. We introduce a duplication-split model of project schedules that yields (i) identical power-law in- and-out degree distributions and (ii) a vanishing fraction of critical path activities with schedule size. These predictions are corroborated in real projects. We demonstrate that the incidence of delayed activities in real projects is consistent with the expectation from percolation theory in complex networks. We conclude that delay propagation in project schedules is a network property and it is not confined to the critical path." @default.
- W4315491048 created "2023-01-11" @default.
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- W4315491048 date "2023-01-10" @default.
- W4315491048 modified "2023-10-16" @default.
- W4315491048 title "Activity networks determine project performance" @default.
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- W4315491048 doi "https://doi.org/10.1038/s41598-022-27180-0" @default.
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