Assemblies file management

Hi!

My question is about assemblies and management:

I have some big assemblies, made from a bigger number of subassemblies. I want to be able to save my files in a way, so when I make a change in one subassmbly, it will make the changes in all the related assemblies.

How should I save my files, in a way that there will be connectivity between the changed subassembly and the assembly, without having the need to copy the same subassembly between assembly files?

My situation now is:

  • assembly 1:
    • subassembly a
    • subassembly c
  • assembly 2:
    • subassembly a
    • subassembly b
  • assembly 3:
    • subassembly c
    • subassembly b
    • subassembly d

What I want:

  • assembly 1
  • assembly 2
  • assembly 3
  • subassembly a
  • subassembly b
  • subassembly c
  • subassembly d