Criticality and propagation analysis of impacts between project deliverables
Résumé
The implementation of a management by deliverables
and deadlines is based on detailed planning and
strict control of deliverables. It is a strategic decision that
reports to the project manager and a key element to the
success of complex projects. Based on the modeling of
the project elements and their interactions using weighted
directed graphs, this article presents some contributions
to anticipate potential behavior of the project. Topological
and propagation analyses are made to detect and prioritize
critical elements and critical interdependencies while
enlarging the sense of the polysemous word “critical.” We
recommend a set of topological indicators suitable for project
elements and interactions, which mainly allow us to
discuss “How the impact of a project element affects other
elements within the network? What is the collective influence
of this element?”. These indicators permit to prioritize
project elements and their interactions by detecting
the most influential ones taking into account the network
structure. For instance, they permit to evaluate the collective
criticality of project deliverables and to re-evaluate the
priority of the risks associated with these deliverables by
coupling the traditional features of individual risks with
the topological indicators of the deliverables. Furthermore,
some algorithms are applied to extract and visualize the
propagation path between two elements within the network.
For example, this allows to provide a vision of potential
impact propagation between two project deliverables, either
they are associated with two milestones or are critical. An
application to automotive industry illustrates the benefits of
the approach, and some perspectives are drawn for further
work.
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