Knowledge Base Retrieval for Modern Apprenticeships and Employer-Sponsored Classes: Maintain Document Versions and Changes

What this category's data looks like

Modern apprenticeship and order class management materials are mainly school-enterprise cooperation agreements, order class training plans, and master-apprentice records. Their sources are final drafts and process receipts exchanged between the school and enterprise, and their update cadence changes with agreement renewals, plan revisions, and the progress of apprenticeship cycles. School-enterprise cooperation agreements contain the cooperation term, number of positions, and signatures and seals; order class training plans contain course modules, class-hour allocation, assessment methods, and signatures from both parties; master-apprentice records contain the names of the master and apprentice, apprenticeship dates, position rotation, the master's signature, and the apprentice's receipt. When these three types of materials enter knowledge base retrieval and recall, each plays a different role: agreements and plans serve as the version baseline, apprenticeship records serve as process evidence, and during retrieval the recall channel is matched according to material form; after merging, candidate chunks and similarity scores are formed for subsequent nodes or manual work to generate the version ledger and change records.

Configuration and implementation checks

The knowledge base retrieval service (retrieval node and search test) only outputs candidate chunks and similarity scores (after mode, merging, reranking, filtering, and upper-limit trimming); the version ledger and change records must be continued by subsequent nodes or manual work. The retrieval mode is chosen from one of semantic, full-text, or hybrid, matching the material form; multiple result sets are merged, then secondarily sorted by reranking, then subjected to similarity filtering and citation upper-limit trimming, yielding the cited content handed to the model.

Three common errors

• Symptom: the name, quantity, and date of the same record do not match between the agreement and the plan. Cause: the two materials were finalized separately, without field-level comparison and version merging.
• Symptom: the plan has been revised, but the apprenticeship record still cites the old course modules. Cause: the version was not synchronized, the old version was not marked invalid, and retrieval recalled the old chunks.
• Symptom: an apprenticeship record lacks the master's signature or the apprentice's receipt but is still treated as valid evidence. Cause: the signature and receipt fields were not checked before the material entered the knowledge base.

How to verify the setup

Acceptance for this feature: test once each with synonym-rewritten questions, compare candidates and scores, then toggle reranking on and off to inspect the top few rankings; record the number of candidates and scores, record the number of citations separately by array length, and check the citation upper limit against the tokens of the cited text.

Business test: change one piece of content and see whether the version number and citations are updated in sync; if citations do not match, first check hits and associations. The retrieval node only outputs candidate chunks and similarity scores; the version ledger and change records are continued by subsequent nodes or manual work.

• In the knowledge base search test, switch searchMode, compare the candidate chunks and scores of the semantic, full-text, and hybrid modes, and confirm that the agreement, plan, and apprenticeship records each hit.
• Compare the top few rankings before and after enabling usingReRank, adjust similarity to observe changes in the number of candidates and scores, and check whether cited chunks retain key fields such as signatures, dates, and quantities.