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There are thousands of model and data repositories that are potentially part of the digital engineering environment for organizations developing complex systems. No engineering software vendor has the resources to build and maintain integrations to even a sizeable fraction of these, especially since many are custom proprietary tools with only a small number of users.

We began this blog series with the idea, captured in the notional diagram in Figure 1, that there is a connection between project management metrics such as schedule, cost, and risk; the characteristics of the digital thread; and the specific queries that a digital thread platform might make. We looked at that connection in greater

In Parts 3 through 7 of this blog series, we have examined critical metrics associated with the digital thread and their relations with project metrics such as cost, schedule and risk.  We illustrated these with specific queries executed through the Syndeia digital thread platform, captured as a script in a Jupyter notebook. These metrics have

The previous four sections of this blog series have dealt with the characteristics of the digital thread itself and the modeling process. Verification deals with characteristics of the real system that the digital thread models, primarily its performance against requirements. Assuming the results of physical testing, simulation, and analysis are captured within the digital thread,

The digital thread is dynamic. Many of the federated data repositories are configuration-managed, and it is critical for the inter-model connections to be version-sensitive. Consistency of a digital thread implies that the version of a connected data element is the same now as when the connections to it were created or most recently updated. If

The ultimate objective of this activity is Completion, the extent to which all desired characteristics of the digital thread have been realized. As a metric, Completion is strongly correlated with project Schedule, but it is also an indicator of project Risk. Completed segments of the digital thread represent a reduced technical risk of unexpected problems