Every time you overwrite a file in the Researsh Area the original file is copied to a different location and retained as a so called revision, for restoration on a later moment. However,

From 00.00 midnight to 00.00 midnight Amsterdam time which is Central European Time (GMT +1) is called a day.

During the day

Yoda will automatically save all new revisions of your data during the day. This is done every moment that you save your file in a folder (using the same name). So, this will not overwrite the existing file but it will create a new revision while the older revision is stored somewhere in a hidden location. So, you will have the latest version in the research area, currently in use and the previous version stored elsewhere.

In this way, during your working day, you will be able to go back to each and every former revision you might need.

All available revisions can be found by “Search revision by name”

Figure 21

Imagine you are working on your data already for a long time and let’s say you are working late on Wednesday 11.15 pm.

Figure 22

All your revisions of the day are available. This could result, at the end of the day, in an enormous amount of revisions

Then, right after midnight when the Yoda days ends, the last day

is divided in two timeslots, one from midnight to 12.00 noon and the other from noon to midnight.

From each 12 hours’ timeslot the first and the last revision will be kept.

Resulting in a maximum of 4 revisions from the last day. The current revision in the research area is included in this count.

Figure 23

2 days before

From the 48 hours preceding the last day only the first and the last revision is kept.

Figure 24

Last week

The same goes for the other groups of two days of the last week.

Figure 25

Thus, resulting in 10 revisions to be kept for every week: too much.

So, after a week the revisions are wrapped up: only the first and the last will be kept.

Figure 26

A month and longer

After 4 weeks, the same mechanism will only save the first and the last of the 4 weeks period.

After 8 weeks, only save the first and the last of the 8 weeks.

After 16 weeks, the oldest one will be deleted.

In this way, you will always have your latest version and one or more older revisions.

Note that Microsoft’s autosave doesn’t function in Yoda.