Dungeon Keeper 1
Ingame-
Simply your manufacturers go to the Workshop and build until it is full. This is an automatic style of building. All you have to do is go to the Workshop panel and place down Traps or Doors that are already built. Then your Imps obtain the Trap/Door box and then bring it to its desired location.
Pros-
Never Have to Worry About Workshop Orders
Faster Trap/Door Planting As Trap/Door Premade
Cons-
No Control on the Order, Built by High Demand
Crouded Workshop
Glitchy with AI and Many "Things" (Fixable)
Dungeon Keeper 2
Ingame-
You go to the Workshop Panel and then place Traps or Doors. They appear as blueprints and then your manufacturers head to the Workshop and build. This requires a more manuel type of work. After your Manufacturers are done, your Imps eventually drag the box to the location.
Pros-
Complete Control Over What's Built
Non-Crouded
Cons-
Slower Placement
Must Worry About Getting Manufacturers into the Workshop to Build
Switchable
Ingame-
There would be a Default Game Setting on which DK1 or DK2 style it uses. There should be a switch in the Workshop Panel between manuel and automatic. Then depending on the setting, it will move about as either DK1 (Automatic) or DK2 (Manuel) Workshop Progress.
Pros-
Allows Building upon the Varifying Player's Preference
Cons-
AI Trouble (Fixable)
Constant Need to Reset Value (Fixable)
Custom Switchable
Ingame-
Simply it is the same style as the Switchable, except there is a new option near the Switch of Automatic and Manuel. Clicking this brings up a menu of the Automatic order. From here you can switch which Traps or Doors are built in what order. So basically Custom Switchable is the same as Switchable but you can change the automatic order.
Pros-
Allows Total Custom Gameplay to How the Player Likes
Cons-
May become Too Powerful in Getting Powerful Traps Early (Highly Unlikely)