---
title: "Build Your QL Expert System"
type: "article"
slug: "build-your-ql-expert-system"
url: "http://localhost/article/build-your-ql-expert-system/"
markdown_url: "http://localhost/article/build-your-ql-expert-system.md"
published_at: "2026-03-09T20:07:32+00:00"
modified_at: "2026-03-09T20:07:32+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "With this issue, the 1980's Era of Computer Discovery comes to a close. Sad, but true. See 'From The Publisher's Desk…' inside for the complete details."
category:
  - name: "Quantum Levels"
    slug: "quantum-levels"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/quantum-levels/"
post_tag:
  - name: "QL"
    slug: "ql"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ql/"
  - name: "Software review"
    slug: "software-review"
    taxonomy: "post_tag"
    url: "http://localhost/tag/software-review/"
model:
  - name: "Sinclair QL"
    slug: "sinclair-ql"
    taxonomy: "model"
    url: "http://localhost/model/sinclair-ql/"
publication_r:
  id: 52231
  title: "Quantum Levels"
  type: "periodical"
  url: "http://localhost/periodical/quantum-levels/"
volume: "2"
issue: "6"
issues_articles:
  - id: 52927
    title: "Quantum Levels v2 n6"
    type: "issue"
    url: "http://localhost/issue/quantum-levels-v2-n6/"
pages: "2-3"
archive_link: false
---

# Build Your QL Expert System

With this issue, the 1980’s Era of Computer Discovery comes to a close. Sad, but true. See ‘From The Publisher’s Desk…’ inside for the complete details.