Vignette, Task, Requirement, and Option (VITRO) Analyses Approach – Application to Concept Development for Domestic Chemical, Biological, Radiological, and Nuclear (CBRN) Event Response


  1. Dooley, P.W.
  2. Gauthier, Y.
Corporate Authors
Defence R&D Canada - Centre for Operational Research and Analysis, Ottawa ON (CAN)
Using notional data, we describe a systematic, transparent, and generic planning approach that is based on sequential Vignette, Task, Requirement, and Option (VITRO) analyses. Whereas vignette analysis yields likelihood estimates for potential events of interest, task analysis gauges probabilities for tasks that the Canadian Armed Forces (CAF) may be requested to perform in response to such events. Next, requirement analysis produces estimates of what the CAF would need to perform such tasks adequately, across the vignette set. Finally, option analysis aggregates the three foregoing analyses’ results, to assess potential force packages’ performance versus a range of prospective tasks. The high-level, quantitative results readily enable decision makers to weigh possible trade-offs between resourcing options and consequent force package capabilities. The VITRO approach has been applied to support the development of a CAF concept for domestic Chemical, Biological, Radiological, or Nuclear (CBRN) event response. Though the approach is generic, we have also used a domestic CBRN event response context to frame this report’s notional examples.

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Report Number
DRDC-CORA-TR-2013-225 — Technical Report
Date of publication
01 Dec 2013
Number of Pages
Electronic Document(PDF)

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