Terminology for spacial places

Assembly stages might have been a better choice than levels. But hard to change now.
(Associations: rocket stage, robot stage.)
More investigations in etymology needed ...

• Stages
• Levels – Assembly levels
• Layers – Assembly layers – supposedly hinting on coplanar stratified geometry
• Sub-layers

---

• Zones – Sequence of zones

---

• Areas
• Regions
• ...

Related

• Terminology
• Terminology for parts
• APM related terms