Use this document to identify what and whom your organization may rely on to perform essential processes. That is, if these resources were unavailable, it would make it difficult or impossible to perform critical process. Consider skilled personnel, specialized equipment, a specific environment, or critical vendors. The more complex processes may rely on multiple resources. Remember that others are also depending on you. Be sure to document upstream dependencies in separate section or version of this form. Once all dependencies are documented, you can make plans (e.g., alternate suppliers or workarounds) to mitigate the risk should they experience a disruption.  Document the resource dependencies for each essential process using this dependency mapping tool.