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I'm trying to create a flowchart diagram. It includes the following data:

  • Time with interval of 30 minutes
  • A group of data for each time interval
  • Data flow inside to this group
  • Data flow outside from this group

Here is my attempt: enter image description here

But I think, it's not ok. User can understand which data comes in and which goes outside but it feels like it's so ordinary and not human readable.
What else can I add or change? Should I separate the incoming and outgoing data?
Here is the file.

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Are you sure that Data5 belongs to the second interval? It looks like the 1st interval began with 120M, then 18% minus 8% was added and finished with 132M, which is the starting amount of the second interval. If so, then I got a little different representation for your data that may work. –  Roimer Dec 24 '12 at 17:34
    
Well, it is actually a example what they gave to me. It means we have a loss of 8% until the end of first interval. That means it is drawn in the wrong place. –  Cihad Turhan Dec 24 '12 at 19:02
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1 Answer

up vote 1 down vote accepted

By the amounts shown in your illustration it looks like the flow of data to outside (red arrows) belong to the intervals previous to where you drew them.

In my attempt, I aligned both flows over and under the main arrow, and added divisions in order to clearly state which elements belongs to each interval, so every interval now has a initial value, flows inside and outside, and a final value which belongs to next interval. If there are more than three intervals (five, ten?) you may want to paint them alternatively with two light colors.

mockup

download bmml source – Wireframes created with Balsamiq Mockups

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Thanks, I got it. The number of intervals can vary. Say 10 intervals. Therefore, painting with light colors might work. Another question is, should I put the arrows on the black line or the grey boxes (as the data flows into or outwards from them) –  Cihad Turhan Dec 24 '12 at 19:45
    
I would put the green and red arrows on the black one, depicting that the data flow begins with a initial value. But if you prefer you can put the arrows on the grey box, but be sure to align horizontally the tree boxes and the data label. –  Roimer Dec 25 '12 at 2:08
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