Main-type categories

The top-level (level1) category is:

• Horse-drawn vehicles

This level1 may be underneath: Horse transport, Animal-powered vehicles, Horse driving

Level2 are the top 5 main-type categories:

• Horse-drawn carts
• Horse-drawn carriages
• Horse-drawn coaches
• Horse-drawn wagons
• Horse-drawn vans

These top 5 categories must be unambiguous, so they get the "horse-drawn" prefix.

Each of these level2s may sit under the general/generic categories of the same name:

• Carts
• Carriages
• Coaches
• Wagons
• Vans

The Level2 categories may contain files that cannot be specifically identified further. These are holding buckets which may become large while waiting for someone to sift through them to further diffuse each image.

Type categories

Build the specific vehicle types under each main-type category. These categories are for holding files. For example, under "Horse-drawn carriages", have:

• Victoria
• Barouche
• Phaeton
• Landau
• Clarence
• Berlin
• Chariot
• Buggy
• Vis-à-vis
• etc.
• Carriages by type (a diffusing category)

Diffusing categories

These are categories only used as holders for subcategories, and not for holding individual files. These are sorting bins, not storage bins. These are attribute-based groupings which remain available for navigation.

Examples:

• Carriages by type (a diffusing category)
  • Open carriages (diffusing)
  • Closed carriages (diffusing)
  • Two-wheeled carriages (diffusing)
  • Four-wheeled carriages (diffusing)
  • Carriage types by name (diffusing)
  • Regional carriage types (diffusing)
• Coaches by type
• Carts by type
• Wagons by type
• Vans by type
• Horse-drawn vans by country
• other "by country" groups

These should all be tagged as diffusing categories.

Context categories

These categories describe the context in which horse-drawn vehicles appear. They are not part of the type hierarchy. Topic categories may contain files, because they are not diffusing categories. These are not hierarchical; they are intersectional. They describe the context in which a vehicle appears. Examples:

• Horse-drawn vehicles in Germany
• Carriages in art
• Carriages in museums
• Scenes including horse-drawn vehicles

Move files

Move all files OUT of diffusing categories and into the most specific category possible (specific types like "Landau"), or if you cannot identify its type then move it into one of the 5 main-types categories (cart, carriage, coach, wagon, van) or place in the 'scenes' category if incidental to a photographic scene. Use these main-types as dumping grounds for unidentified or not-yet-identified images. These categories should contain files. Everything not-more-precisely identified goes here. Editors can sort through these later.

• Horse-drawn vehicles
  • Horse-drawn carts
  • Horse-drawn carriages
  • Horse-drawn coaches
  • Horse-drawn wagons
  • Horse-drawn vans
  • Scenes including horse-drawn vehicles (a catch-all for images where vehicles are incidental in the photograph and/or have mixed types)

Clean up the diffusing categories

These are currently a mess because people treat them as types rather than diffusing categories (empty of files; they should contain only subcategories). Examples:

• Horse-drawn carriages by country
  • Carriages in France
  • Carriages in Germany
  • Carriages in the United States
• Open carriages
  • Victoria
  • Barouche
  • Phaeton
• Closed carriages (coaches plus a few others)
• Two-wheeled carriages
  • Governess cart
  • Dogcart
• Four-wheeled carriages
  • Barouche
  • Landau

Move all files out, by pushing them into specific types or into one of the top 5 main-types (Horse-drawn carts, carriages, coaches, wagons, vans).