Object modification & Save impact

Attribute modification & save 

An attribute value that is defined at the reference level is common to all instances.

• Modifying it will impact the all instances. 
• When saving only the reference is considered as modified 

An attribute value that is defined at the instance level is specific to each instance.

• Modifying it will not impact the other instances 
• When saving the reference is not considered as modified but the Parent product will be

Symbole in view modification & save 

Modifying a property on the symbol rep iin the sheet/view, (like line type, or name..) (Properties tab : Graphic & Schematic Symbol)

• Modify the View object

conclusion

This means that if you have to change 

• a reference attribute, you must have write access on the Object Reference
• an instance attribute, you must have write access on the Parent Object Reference
• a symbol (or text/label)  places in view property , you must have write access on the View Object