  Mitigating dependency vulnerability
Concerning the vulnerability asspect, we analyze an SD model for the viabilty of dependencies, by looking for patterns of dependencies that may serve to enforce commitement, assure success, or insurce against failure.(p21)
The different mechanisms for dealing with vulnerability are often used in combination. (p21)
» See also: Dependency Analysis I
 enforce commitement
A commitement is enforceable if there is some way for the depender to cause some goal of the dependee to fail, e.g., if there is a reiprocal dependency. (p21)
assure success
Assureance means that there is some evidence that the dependee will deliver the dependum, apart from the dependee`s claim. For exampe, knowing that fulfilling the commitement is in the dependees own interest would be assurance (independently of whether or not the depender has enforcement mechanisms). (p21)
insure against failure
Insurance mechanisms reduce the vulnerability of a depender by reducing the degree of dependence on a particular dependee. A depender can improve the chances of a dependum being achieved by having more than one depndee for the same dependum (or parts thereof). (p21)
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