{"id":"EDT-011","name":"Compare before and after metrics","domain":"editing","layer":"document","strength":"heuristic","human_logic":"IF a substantive revision is proposed, THEN compare accuracy, comprehension, task success, length, voice, accessibility, and evidence status ELSE retain.","when":{"path":"edit.substantive","operator":"eq","value":true},"then":[{"action":"measure","target":"edit.before_after","dimensions":["accuracy","comprehension","task_success","length","voice","accessibility","evidence_status"]}],"else":[{"action":"retain","target":"current_text","reason":"No triggering condition is present."}],"unless":[],"because":"A revision can improve one metric while damaging another.","diagnostics":[],"examples":{},"source_ids":["BK-024","BK-027"],"laka":{"smallest_sufficient_intervention":true,"primary_axes":["scope","depth","magnitude","reversibility"]},"requires_facts":["edit.substantive"],"tests":[],"sources":[{"id":"BK-024","title":"Developing Quality Technical Information","creator":"Michelle Carey; Moira Lanyi; Deirdre Longo; et al.","domain":"technical_writing","type":"Book","note":"Quality dimensions for usable technical information.","url":null},{"id":"BK-027","title":"Managing Your Documentation Projects","creator":"JoAnn T. Hackos","domain":"documentation_management","type":"Book","note":"Planning, resourcing, and managing documentation systems.","url":null}],"defined_in":{"file":"19-editing-diagnostic-rules.json","title":"Editing, Diagnosis, and Quality-Control Rules","slug":"editing-diagnostic-rules"}}