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TPL-052MatrixOperational resilienceBusiness continuity

End-to-end dependency map

Six layers, one row per dependency, sortable by substitutability.

Tabular rather than diagrammatic, so it stays maintainable beyond thirty elements. Columns: service, layer, element, substitutable, substitution lead time, associated third party, criticality, detectability. A summary tab aggregates single points of failure per service.

How to use it

  • Descend to the first non-substitutable element, then stop
  • Handle the "people" and "third party" layers first
  • Include tier 2 of critical providers

Courses that use it

OR-202

End-to-end mapping

Related templates

TPL-001

Business continuity policy

Policy template meeting ISO 22301 clause 5.2, ready to sign.

TPL-002

Continuity programme charter

The written mandate that gives the practitioner authority.

TPL-010

Business impact analysis questionnaire

Fifteen factual questions, designed to be answered in ten minutes.

TPL-011

Multi-criteria impact scale

Five criteria, five levels, five time horizons, with an override rule.