How to show that an element has been previously modified
Note: I've been through the following questions and, while they do provide some useful insight, they are all really old (2010, 2012) and not really a duplicate of my use case → 1, 2, 3
I have a table in which each row contains the following elements:
- original value
- current value
- slider to modify the current value
- other irrelevant things (5 or 6 columns in total)
The current value can be modified (increased or decreased) using the slider or simply by typing a new number in the row (the cell is an input box), all changes are saved automatically.
Users can navigate away, return to the same page (possibly days or weeks later) and continue from where they left, but the only way to see if a value has been modified in a given row (aka original value =/= current value) is to "manually" look at the two cells and compare the numbers.
I'm thinking of implementing some sort of visual indicator which should:
- show which rows have been modified
- ideally, if the current value is greater or lower than the original value (unsure about this)
I'm definitely not a strong UX person, so I'm looking for some ideas and advice on what things to keep in mind while implementing this indicator.