Forum

Round approximation...
 
Notifications
Clear all

Round approximation in time management

3 Posts
2 Users
0 Reactions
3,197 Views
(@louisc)
Posts: 58
Active Member
Topic starter
 
[#3122]

Hello,

I have found a little problem due to round approximation in time management.
The standard working day in my Projeqtor configuration is 8 hours long.
I have defined 1h periodic meetings each open day once a week for the team, which represent 0.125 day, but Projeqtor makes approximation and displays (and counts !) 0.13 day.
I precise that I have seen this with meetings but it can be seen on any activity/ticket/etc during 1 hour. With meetings, I just selects start and end hour of the meeting and the time is automatically calculated.
I tried both with real work allocation unit in days or hours (workload is defined in days, which is more realistics), and each time the conversion of 1 hour meeting ends in 0.13 day or 1h04.
The problem is that for a periodic meeting with the complete team, the cumulative error is quite big on 1 year.
How can we get the time calculation correct without having approximation at this stage ?

Thanks for your answer.


 
Posted : 02 Mar 2016 19H00
(@babynus)
Posts: 14952
Member Admin
 

Recorded as Ticket #1993


 
Posted : 03 Mar 2016 22H12
(@babynus)
Posts: 14952
Member Admin
 

Hi,

After some study, this is not really an issue.
If duration is 1h, assigned work calculated is 0.125 d, rounded to 0.13.
But you can change it to exect value of 0.125 if you care.
Then saved value is exactly 0.125 even if there is a rounded display.

You can check in the database, table assignment : stored value is 0.125.
To see it, you can for instance change unit for work to hours (not only to real work) and go to the meeting : planned work is 1h exactly (not 1,04h).
Or you can check total assigned work to periodic meeting : with 1 resouce assigned 0,125 days 10 times, total is exactly 1.25.

Also consider that is you do not fix value and leave 0.13, issue is only on planning.
When resources enter real work, if real work is in hours, they enter exactly 1h, without rounding, so real work project is correct.

Rounding will be set to 3 digits when adding work on meeting, hoping it will not set a mess for other users.


 
Posted : 12 Mar 2016 21H53
Share:

Scroll to Top