ECO.Preface:9 - External contributions and entry

This DPF relies on the general meanings and selected methods in FPF Core, including B.1.5 for constituent and encompassing methods, C.11 for proportionate inquiry and C.36 for cultural continuation. The dependence is from ECO to Core.

The Engineering DPF Suite provides the external financial, accounting, operating, asset, organizational, corporate, explanation and capability-development method descriptions cited in the patterns. Their actual results must be obtained where the working case requires them. A conditional reference does not make every method a prerequisite for every ECO use.

The Foundational Thinking DPF Suite provides external methods for constructing and using mathematical, physical and computational models. Those methods are needed when the relevant model or interpretation is missing, not merely because the question is economic.

When a supplying method changes, reconsider the receiving claim whose operation or condition changed. Its publication date alone does not determine compatibility. Begin with the Table of Contents or the connected uses in the Readme; stop when the requested contribution is supplied.