One of charts that give you a quick overview of what’s happening in a
project or product work is Cumulative Flow Diagram (CFD). On one hand
in CFD you can find typical information about status of work: how much
work is done, ongoing and in backlog, what is the pace of progress, etc.
This is the basic mechanism. On the other hand, once you understand the chart,
it will help you to spot all sorts of issues that a team may be facing.
This is where Cumulative Flow Diagram shows its real value.
Cumulative Flow Diagram
The mechanism of Cumulative Flow Diagram is very simple. On a vertical
axis we have a number of tasks. On a horizontal one we have a time-line.
The curves are basically a number of items in any possible state shown
in a time perspective. The whole trick is that they are shown cumulatively.
So a cumulative flow is built of snapshots of the board summary per day
For instance if working in progress (Red) is wide means problems finishing work
or Next stage can’t deal with work know.
If there are many requirements TODO (Green) we have to investigate what happens
because the client will have to wait a lot until we finish with all of the items.
This is better!!!
There are a few work in progress (Red), a lot of work was done (Blue) and there is a reasonable
items TODO (Green)