Approvals are based on discretionary review procedures and qualitative performance metrics. For example, in the context of environmental planning this might entail measuring the quantity and quality of storm water run-off during and after development.
Link development to outcomes around issues that the community has determined are important.
Performance-based and/or discretionary review requires on-going monitoring and enforcement by a competent party. This may require quantitative assessments by professional consultants.
Approval is not based on a set of fixed rules which may become out of date or may be a poor fit, but can be calibrated to the particular context of different places and conditions.