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04
⚖️ Legal & Professional Services
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Version-Controlled Precedents. ISO 9001 Compliant.

The Legal Precedent Library Schema turns your precedent documents into a controlled, versioned, auditable library. Every precedent has an owner, a version number, a review date, and a full access log. ISO 9001 §7.5 documented information requirements — met structurally.

The Problem This Solves
Most law firms store precedents in shared drives or document management systems with no version control, no review triggers, and no access logging. When a client complaint arises or a quality audit is conducted, the firm cannot demonstrate which version of a precedent was in use at a given date.
Regulatory Basis
ISO 9001:2015, §7.5 · SRA Code of Conduct 2019, §7.1
ISO 9001 §7.5 requires documented information to be available, suitable for use, and adequately protected. Version control, access control, and retention management must be demonstrable.
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⚖️ Legal & Professional Services
MS 04
Legal Precedent Library Schema
£1,697
ONE-TIME · FULL CODE OWNERSHIP · NO LICENCE FEE
✓ Production-ready PostgreSQL schema
✓ n8n automation workflow (JSON export)
✓ HTML / JavaScript frontend
✓ Immutable audit trail built in
✓ Build guide — step-by-step setup
✓ Sub-30-second evidence retrieval
✓ ISO 9001:2015, §7.5 aligned
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Delivered and live within 14 days or money back
What's Included

Six Production-Ready Deliverables

Every component is built, tested, and transferred to you on day one of deployment. No dependencies. No ongoing licence fees. Full code ownership from the moment it goes live.

🗄️
precedents table
Core table: precedent_id, title, practice_area, document_type, current_version, owner_id, status ENUM (draft, active, archived), review_date, created_at.
📚
precedent_versions table
Full version history table — every version of every precedent retained permanently. version_number, content_hash, change_summary, approved_by, approved_at.
🔍
precedent_access_log
Every read, download, and copy event is logged with user_id, precedent_id, version accessed, access_type, and timestamp. Append-only — no deletes permitted.
📊
vw_precedent_review_due
Live view showing all precedents with review_date within the next 30 days, overdue, or flagged as requiring update following a regulatory change.
🔄
Review Reminder Workflow
n8n workflow queries vw_precedent_review_due weekly and emails the precedent owner with a list of precedents requiring review. Review completion is logged back to the database.
🔎
Full-Text Search
PostgreSQL full-text search index on precedent title, practice area, and tags — enabling sub-second precedent discovery across the full library.
Technical Specification & Live View

Built to Run. Not to Demo.

Every UNUS London mini solution is a production system — not a prototype. The schema runs on PostgreSQL 17.4 with full referential integrity, Row-Level Security, and an immutable audit trail from day one. The n8n workflow handles every user interaction end-to-end.

The evidence view below is representative of the live data structure you will have in your system. Every record shown reflects the actual column names, data types, and status logic in the deployed schema.

DatabasePostgreSQL 17.4 (Supabase)
Tables3 (precedents, precedent_versions, access_log)
Views2 (review_due, access_summary)
SearchPostgreSQL full-text (tsvector)
StandardISO 9001:2015 §7.5
RetentionAll versions permanently retained
Code Ownership100% — transferred Day 1
legal-precedent-library — live data view
Residential Sale Contract Conveyancing v4.2 R. Mensah ⚠ Review due Mar 2026
NDA — Standard Form Commercial v2.0 J. Clarke ✓ Current
Employment Contract Employment v6.1 T. Okafor ✓ Current
Lease Agreement Property v3.3 A. Patel 🔴 Overdue Jan 2026

Get the Legal Precedent Library Schema
live in your firm.

A 30-minute discovery call is enough to scope this system for your firm, walk through the schema live, and confirm the delivery timeline. No obligation. A genuine technical conversation.

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