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Allow a task to use only a portion of the time between start and end dates

I don't understand why no project planning app seems to work the way I do!

I always have multiple projects on the go. I want to be able to schedule project A as 32 days over an entire calendar year and project B as 40 days over 3 months, and get a warning when I try to allocate too many days over any period.

Instead, Gantter, and every other tracking system I've tried, lets me specify any two, but not 3, of duration, start and end,and always calculates the missing value from the givens.
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  • Same here! I need to plan to do a work of 2 days long in the coming 2 weeks and ideally the planning software to tell me if i am over allocated or not. It's not important for me when i do it as long as it is between those 2 periods of time!
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  • I’m helping
    Hi,
    I guess understanding the difference of "duration time" and "work time" clears out the fog.
    Duration: the size of the period within the task is done (from start date to finish date), gross/brutto time.
    Work: the net time spent doing the task. Note: if more resources (e.g. colleagues) are assigned to a task then the task's work is the sum of all the assigned resources' work.
    Additionally, the "unit" phrase raises, i.e. for a specific task a specific resource is assigned: how much % of the duration-time is used as work-time.
    If the duration is greater then the work then there's a free option for the resource how schedules it's work (the thask has a buffer).
    Then, when you have parallel tasks (overlapping) with the same resource(s), you have to additionally consider the overall/total usage (%) of each resource e.g. day-by-day - as you stated in your post.

    Our friends at wikipedia.org have already said this and more about Project Management and time scheduling:
    http://en.wikipedia.org/wiki/Duration...

    Cheers!
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