Fill Activity Timeline

The second timeline at the bottom is the 

 2. The Activity-Time: The time the process is really being touched; when there is activity going on. Those are the ‘payed hours’.

When two people work 1 hour together, the activity time is 2 hrs!

The Activity Timeline shows how much WORK was performed during the Clock Time.

  • [Activity Time] can consist of [Value Added Time] and/or [Non-Value Added Time]
  • In ONE clock-hour it is possible to have MULTIPLE Activity hours when more people work together! 
  • ONE activity hour can have maximum ONE hour of value
  • Every hour of the [Lead Time] that has no [Value Adding time] is [Non-Value adding Time]

8. How much Activity (‘Work’) was there?

Analyze the time that is being used in this process.

Timeline 2: The activity Timeline

The second line of the time-section (bottom of the form) is the ‘activity-time’ line.

Where the first time-line showed the lead-time, the second time line shows the part of this time where actually something happened to the object of the process.

  • Whenever the subject of the process is being ‘touched’ in any way, ‘action-time’
    is being registered (or estimated). This means from every ‘action post-it’ the
    activity-time is written down.
  • Activity performed by multiple people parallel is of course summed up;
    so calculate: [Spent time] x [Persons involved].

Probably now it becomes clear, how only a fraction of the total process time is being used to really do something to the subject in the process! Most of the time the subject is just ‘lying around somewhere’ waiting for another small step of action….

  • Now calculate the Work-ratio; this is the ratio between the total lead-time versus the actual worked time.

workratio formula


A process runs during 2 weeks, and takes from start to end 8 days, 12 hours and 45 minutes (nights and weekend included!).

During this period the process has been touched (worked upon), during 5 hours and 30 minutes.

Now the Work Ratio is: 330 minutes work within 12.285 minutes time = 2,67%

In this example we see that in 97,33% of the time, nothing has happened to the object in the process!

workratio example

You could think this is an exceptional example, but such numbers are really no exception in real life.

From ‘Activity’ to ‘Value’

When there is ‘activity’, that doesn’t mean this activity is ‘value adding’.

The next thing we want to know is:

How much of the 5:30 hours actually worked time is really adding value? In Other words: How much of the time spent is really contributing to what we ultimately wanted to achieve??

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