The following examples and references to resources give an impression of the scope of the subject matter:

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• Problems are some of the world-wide difficulties and crises.

• System change illustrates more or less fundamental proposals to counter these problems.

• Decision methods are a few ways to select, in particular, proposals for system change.

• Decision theory indicates some of the fields of research and practice concerning the art of deciding.

• Programmes are a few ways a decision method has been chosen, that is, illustrations of 'deciding how to decide.'