For a better "planning constraints" understanding - by: dnaton

Hello,

After using ProjeQTor since few month, I have sometimes (often) difficulties to understand how ProjeQTor manage the planning constraints

Exemple 1

I have a fixed milestone (01/02/2017)



I have an activity with theses parameters



Milestone and activity are linked together



I don't understand why my activity is planned to start the 02/02 and not the 01/02 ? A milestone don't have any durantion also my activity should be start the 01/02, isn'it ?
(I don't input any delay between milestone and start of my activity




Exemple 2

This same activity has a duration of 3 days

When I affect a ressource with an assigned work of 1 day......the duration (on the graphical gantt ) become 1 day too -but stay 3 days on the activity description

For me, it is not the reality : I have to work 1 day but distributed on a duration of 3 days : how is it possible to have this graphical representation ?

I tried to use another planning constraint "fixed duration", I keep my duration when I assigned 1 day work for a ressource....but I can't also define that my activity don't start before a validated date .
If I do that, I lost also again my duration (ont the graphical gantt)

Can someone explain me what is wrong with my process ?

Thanks