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2

An "undo" function isn't the same as a prompt because the former keeps control of the workflow in the user's hands, whereas the latter seizes it (i.e. the user is more passive). Undo is all about reverting state. If the previous state is: easy to remember or inspectable, and the action to change the state is easy to perform, and history (i.e. state ...


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I think it's a good practice to provide Undo/Redo because a user can choose a function by mistake and he should be given a mechanism to leave this unwanted state. It's not a lazy solution but an option given to user for better control. When designing a system, it's important that you first optimize the design to prevent any errors. You can refer to these ...


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The error message should probably include details of how to fix it too, with examples if possible. XML is not really always a user-friendly medium, especially when a strict XSD schema is involved. Is it possible to rethink this requirement, so that an alternative method is used, or perhaps allow the XML and/or XSD to be created via a nice UI?


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I think part of making the error message clearer for non-specialists is to indicate what the user can do to fix it. Is there something they can check on? Someone they should contact? Documentation they can consult?


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Couldn't you have another column in the table called 'Errors' and list any errors in that? Then you could just have the table ordered by the Errors Column when it loads with Errors so they were positioned at the top.


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Build a sub-interface for working through the errors In more advanced version, you could put together a slideshow modal that will represent each inadequate entry as a separate "card." The user could then gradually work through all the entries, solving the problematic lines one by one. This requires additional dev resources, of course, but it could really ...


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You can either have:- An icon for indicating error/warning and mouse over tool-tip to show all. Or, have error/warning column in the table showing few errors/warning with provide more/less link/action to view all errors/warning and less to collapse.


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c) Just log them into their existing account with no error message. (I just tried it and confirmed this is what StackExchange does.) Serving an error message and making the user navigate to the login page and retype their credentials is a poor experience. Once the user is logged in, it will be clear that they didn't need to sign up as they already had an ...



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