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建立時間： 2026-03-23 來源： https://karl-voit.at/2022/01/29/How-to-Use-Tags/
Summary
Karl Voit distills years of academic tagging research and personal practice into 10 rules for personal tagging systems. The core insight is that tags are fundamentally for retrieval, not for filing — and most people’s tagging systems fail because they grow too large, too inconsistent, and too descriptive rather than categorical. The rules push toward a small, stable, non-overlapping controlled vocabulary maintained over time.
Karl Voit 將多年的學術標籤研究與個人實踐濃縮為 10 條規則。核心洞見是：tag 本質上是為了找到東西而存在，而非為了整理歸檔。大多數人的 tag 系統失敗，是因為 tag 數量過多、不一致、過於具體而非類別性。規則推動建立一個小而穩定、不重疊的受控詞彙表，並長期維護。
Key Points
- Use as few tags as possible — start with a handful; only add when you have a clear, recurring retrieval need
- Controlled vocabulary — define tags in advance and stick to them; prevents synonyms, singular/plural inconsistency, and forgotten tags
- Tags must not overlap — “sports” and “soccer” used together will cause inconsistent application; prefer the more general one
- Tags are for retrieval, not description — omit tags that describe obvious attributes (file type, date) or are too specific to be useful across multiple items
- One language — pick a single language for all tags even if your content is multilingual
- Explain your tags — write brief definitions so your future self (and collaborators) know what each tag means
Insights
- The reddit quote Voit cites is the most memorable framing in the article: “Tags are doors and links are corridors” — tags are entry points into a building, links are how you navigate once inside. This implies you need few tags but many links.
- Voit’s TagTrees concept (generating symbolic link hierarchies by tag combination) solves a real problem: enabling navigation by whichever mental model you have at retrieval time without pre-committing to a single hierarchy
- The vocabulary problem is underestimated: two people (or two versions of yourself) independently tagging the same item will choose different words unless the controlled vocabulary is explicitly maintained
Connections
- My Tagging System — personal controlled vocabulary for this vault
- interest-map — the MOC approach chosen instead of tag-based topic discovery
Raw Excerpt
“Tags are doors and links are corridors. Tags are how you enter a building, and links are how you navigate around once you’re in. So you’ll in general have few tags and not every note will have a tag. But you’ll want many links.”