Change detection needs a decision trail, not just a diff

说明与用途

变更检测的实用方法需要建立决策跟踪，包含先前和当前归一化记录、源引用、检索时间戳、明确状态和比较规则。

问题

A changed field is only the beginning of a useful operational signal. Before a team acts on it, they need enough context to tell whether it is a real source change, a missing value, a failed retrieval, or a mismatch in market, variant, or source scope.

结果

A practical decision trail approach to change detection provides sufficient context for teams to understand and act on changes appropriately, distinguishing between real source changes, missing values, failed retrievals, and scope mismatches.

工作流

• Run the collection step separately from comparison and delivery
• Validate a small sample against original source pages before adding schedules
• Add downstream automation only after successful validation
• Treat important alerts as review cues, not final instructions

证据

A practical decision trail keeps the prior and current normalized records, their source references, retrieval timestamps, an explicit status, and the comparison rules that produced the delta.

来源

For monitoring workflows, run the collection step separately from comparison and delivery. Validate a small sample against the original source pages before adding schedules or downstream automation.

来源