What is the Difference between the following Item Types.

[Messenger]

Enhanced Items
Finished Items
Parts
Materials
Decorations

[Viridiana]

Enhanced Items - If I'm not mistaken, this is when you take a finished item and improve it, e.g. plumed pickaxes, wrapped hammers.

Finished Items - This is when you assemble a number of parts into a single item, e.g. swords, tools, fishing rods.

Parts - These are materials that have been converted into specific pieces of a weapon or armor piece, e.g. lance heads, sword blades.

Materials - These, if I'm not mistaken, are the building blocks for everything else, e.g. nuggets, ingots, lumber, planks.

Decorations - Not entirely sure, to be honest. . .

[Messenger]

Creative Urge - Increases chance of success of next action. Most effective for enhanced items.

But you can't choose any skill during touching up ur finished items though..

[Lienn]

Enhanced Items
Finished Items
Parts
Materials
Decorations

Enhanced Items: Items that are made from another one, like bladed lantern shield or engraved iron Bhuj.
Finished items: Stuff ready to use, like meat dishes, weapons and armor
Parts: Materials that are part of a big one, often marked as weapon part, footwear part, etc. Some examples are outsoles, vamps, sleeves, hafts, grips, etc.
Material: Anything that is neither food or finished item. Plates, squares, ingots, leather, cloth, yarns, lumbers, planks...
Decorations: Its for accessories i believe.

And you forgot mass production, that is for items that you make more than 12, like nails, rivets, arrows...

[twinkles]

Decorations - buckles, breastpins,gems etc

Also decorations are considered parts- so abilities that work for parts will also work for decorations.

Another example is enhanced items are also considered finished items. So abilities like Perfection will have 100% effectiveness for either type. Finished items also include arrows and other types of consumable weapons like jav's, throwing axes etc.

[Viridiana]

Creative Urge - Increases chance of success of next action. Most effective for enhanced items.

But you can't choose any skill during touching up ur finished items though..

Like Lienn said, it's items that take a diffent finished item, and improve it. Going from a pickaxe to a plumed pickaxe, a hammer to a wrapped hammer, etc.