SI5 supports a linear sequential design and engineering process. Only one person at a time may modify a project. Changes occur continuously throughout the complete process from conception to completed red-lined drawings. Proper change management can mean the difference between chaos and a well controlled project. More importantly, managing and documenting change is necessary to keep the client informed and to improve your chances of getting paid in a timely fashion.
Comparing two revisions of a project will allow you to see what changed between the two such as: