Dynamic blocks

Three types of blocks have been investigated, these being: a) 

Block

allow user created objects to be multiple inserted into the current drawing

the Design Center allows these blocks to be inserted into any opened drawing

attributes can be attached to a block definition

when the original block object is modified, the current drawing will display the changes.

b) 

Wblock

a drawing file which can be inserted into any opened drawing

all users have access to the drawing file

modifying the original drawing file will not change any drawing using the inserted wblock.

c) 

Xref

a drawing file and can be inserted into any opened drawing

all users have access to the drawing file

modifying the original xref will automatically update all drawings using the inserted xref.

d) 

these blocks can be considered as ‘static’, the user having to modify the original objects if an alteration is required.