PSD.Preface:9 - Let practice change without making every case start over

A corrected concern, altered access condition or new model configuration can change the current result. Identify the claims that depend on the change and ask the responsible practitioner to reconsider them. Obtain and interpret the relevant observation before choosing a response; the mere arrival of a notice is not evidence that the new configuration is safe or effective.

A different problem concerns how inquiry itself is conducted. Use PSD.15 when the professional repertoire needs a justified change, PSD.16 when simultaneous inquiry activities interfere, and PSD.17 when a practice must be continued or changed across practitioners. These are conditional uses, not a required tail on every recommendation.

Contemporary source comparisons belong with the pattern claims they support. Earlier traditions remain valuable where their limits are understood. Neither a fashionable school nor an old success is enough to establish the present Method’s fit. What changes in practice is the reader’s ability to return a useful answer with visible limits—and to change that answer, or the way of obtaining it, when the actual basis changes.