"Hierarchical Tags" or "Tag Relationship Graph"

[Tenormis]

"Hierarchical Tags" or "Tag Relationship Graph"

1. Hierarchical Tags

You can simply define a hierarchical tag in the form of lvl1/lvl2/lvl3. lvl1/lvl2 will be a sub-level of lvl1, and similarly, lvl1/lvl2/lvl3 will be a sub-level of lvl1/lvl2. For example:

==However, lvl1/lvl2 and lvl2 will be considered as two different tags==. For instance, work/notes, personal/notes, and notes are not related to each other.

2. Tag Relationship Graph

The concept of a "Tag Relationship Graph" is similar to the current graph of bidirectional links in Markdown, but it is for tags (not documents).

The tag relationship graph believes that tags should not be in a tree structure (parent-child relationship). Each document's tags should remain simple. sucn as pet/dog/husky, it declares three tags pet, dog, and husky, and also declares the relationship between the tags (pet is the parent of dog, and dog is the parent of husky). We should separate the responsibility of "tag relationship declaration." We create an empty document that only contains metadata declarations, such as dog.md:

---
type: tag
tags:
  - husky
  - border-collie
---

As for another example mentioned earlier, work/notes, personal/notes, and work/projects, you could declare them as three separate tags work-notes, personal-notes, and work-projects. At the same time, create an empty document with only metadata work.md:

---
type: tag
tags:
  - work-notes
  - work-projects
---

Furthermore, you can choose whether to create note.md based on your needs:

---
type: tag
tags:
  - work-notes
  - personal-notes
---

Finally, it would be even better if we could automatically generate "tag relationship metadata documents" by simply dragging and dropping tags directly in the graph interface.