The first possible date they get together will be your constraint. For example, you need approval of the board, and they meet only once a month. These are tasks that have external predecessors. There are some tasks that should have a calendar (a “start no earlier than constraint” as it is officially called). Now for that exception I mentioned earlier: Because task 1 was linked to task 2 (start-to-finish), the second task got a different start and finish date. The only thing I changed between the top and bottom image was the duration. That deadline is a fixed point in time that will not move and often has a external source like your manager or a client.Īll other dates are derived from dependencies!Ī dependency will force the start date of a task to a later date if the predecessor takes longer to finish. These dates are the Project Start date (you can find that one in the Project information menu) and a deadline on the milestone for the finished product. Ideally there are just two dates that should be entered in any schedule – there can be more but I’ll get to that later. Have a look at what happens:ĭid you see that? I changed the duration for task 1, but now task 2 has a incorrect starting date. And that will produce a lot of work for you when you change a tasks duration. If you have a schedule like this, none of the tasks are linked. Granted, those dates are editable, but they should not be edited by hand. How did these calendars get there? There’s a good chance you used the Start and Finish columns to enter the dates for the tasks. Take a close look at this Gantt table, and more specifically at the Indicators column (the blue “i” icon left to task mode): In this series of articles, I would like to explain 7 of these flaws and subsequently show you how to solve each situation.
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