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Redmine 1.1.1

I've created a set of tickets for a new project. In each issue I filled Subject, Description and Estimated time fields. I also filled blocks/blocked by dependencies in Related issues.

But the Gantt chart for this project is empty (that is, it contains all the tasks, but does not contain any "bars" for them).

I need to get a Gantt chart (or any other visual representation) to show to other project members.

I'd hate to type all that information again into OpenProj.

Is there a way to get a serviceable Gantt chart from the Redmine?

Update:

In the answers below I read that to get working Gantt chart I have to input start date and due date manually for each issue.

I believe that this information should be inferred automatically from start date of first ticket (first — depenency-wise), estimated time of each ticket, dependency graph, resource assignment and working hours calendar. Just as it happens in any minimally sane Gantt chart project management tool.

To enter this information by hand and to keep it up-to-date manually as the project evolves is insane waste of time.

Is there a way to generate Gantt chart from the set of Redmine tickets without filling in all this information manually? (Solutions involving data export + import in sane tool or involving existing plugins are perfectly acceptable.)

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I always love it when people work extra hard to generate a document that is out of date before the (virtual) ink is even dry. –  Rein Henrichs Apr 15 '11 at 0:44
    
@Rein: It is not plan what is important, it is planning. –  Alexander Gladysh Apr 15 '11 at 2:51
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4 Answers

There's a plugin for that! Redmine Better Gantt Chart Plugin. It adds the relations "precedes" and "follows". It updates start times and end times of following tickets, when the preceding one is delayed or advanced. It also draws lines on the Gantt chart showing this dependency.

Hope this helps,

-Matt

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You can use target versions. All tickets assigned to a target version get the due date of that version. It is not assigned to the ticket it self, but within the Gantt-Chart it looks as if so.

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I think the issue is whether Redmine (with Better Gantt) is a project planning tool. If it is then the Gantt chart should be a means of visualizing the relationship between tasks based on the order in which they must occur and the time it would take to do each, so that I can play with the order of events or application of resources to meet a desired end date. In that paradigm tasks are fixed chunks of time spend on part of a project and the dates are flexible depending on how I arrange the tasks or assign resources. For example, I might want to reduce the time estimate of one task (i.e. I put two people on it) and see what that does to the end date. As a planning tool it is necessary to be able to play "what if" to see how I might tinker with dates when various resources are available to start work and see if I can pull in an end date to meet a specific target.

The argument could be made that it is more of a project management tool, but typically management occurs to a plan, thus any good management tool is also a good planning tool.

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I suppose you cannot infer the start time - as all your tasks would start right now, and often they don't. The gantt chart in these apps does not do resource levelling to stretch out the times to fit the people assigned to them (shame, it'd be nice).

If you can come up with a valid use-case for the system, raise it as a ticket in Redmine (and chiliProject of course) and see if they implement it.

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