What if the manual-save stopped working and didn't tell you?
I suppose it's equally as likely. The example I'm thinking of is losing your network connection while typing an e-mail in GMail. It shows a warning message, but out of the way so you might not notice. If you intentionally take an action to save, you are more likely to notice the result (and a good user interface would make a failed intentional save obvious by a popup message or something).
You made a change - that's it. You don't save your paper after drawing on it with a pencil, do you?
Depends. If I was drawing something remotely important, there would probably be many revisions, some of which I'd want to keep, some of which I'd want to throw away. Some of which I'd want to make a separate copy of to work in a different direction. So yeah, versioning. How do you version things without files?
I suppose it's equally as likely. The example I'm thinking of is losing your network connection while typing an e-mail in GMail. It shows a warning message, but out of the way so you might not notice. If you intentionally take an action to save, you are more likely to notice the result (and a good user interface would make a failed intentional save obvious by a popup message or something).
You made a change - that's it. You don't save your paper after drawing on it with a pencil, do you?
Depends. If I was drawing something remotely important, there would probably be many revisions, some of which I'd want to keep, some of which I'd want to throw away. Some of which I'd want to make a separate copy of to work in a different direction. So yeah, versioning. How do you version things without files?