Two activities occur one after another

[shew]

Hello, everyone, I'm new to the forum, and I am excited to use FET for scheduling needs.  

What I need is a way to make the following constraint: :-?

Activity1 and Activity 2 should come "together", which means it can be either [Activity 1, Activity 2] or [Activity 2, Activity 1].
It is not "consecutive" or "ordered". Please let me know if you have a solution. Thank you.

[Liviu Lalescu]

There was once a constraint 2 activities grouped, but it disappeared when I changed the algorithm for the new FET-5.

Please try to use constraint 2 activities consecutive with an arbitrary order for now.

I'll try to implement this new constraint "2 activities grouped" and let you know if and when it is ready, so you can test it.

[Liviu Lalescu]

I have made this new constraint, 2 activities grouped. Please see:

http://lalescu.ro/liviu/fet/download/test/

I hope to release official at the end of this week.

I hope you can help me with testing: with breaks in between the activities, with durations 1 and more than 1, and other combination of constraints. I tested, of course, but the more testing the better.

Please let me know if you notice any bug or even if everything is OK.

[Liviu Lalescu]

I corrected a small mistake. Please download again (from the same location), if you already downloaded. The new file is snapshot-25-nov-2008-16_41.

Please let me know.

LE: Please also test with weight below 100.0%

[shew]

I have tried 6 different sets of grouped activities all at once with weight 100%, and there's no obvious mistake. Thank you for your help.

[Liviu Lalescu]

Please tell me, do you think the names of the constraints are good?

I mean, 2 activities ordered, 2 activities consecutive and 2 activities grouped.

Do you think that these names are better: 2 activities ordered, 2 activities consecutive ordered and 2 activities consecutive not ordered?

I would prefer to leave them as they are. But do you think that people will know how to use them? The second variant also might confuse the users with too many words.

Please let me know asap, because I intend to release soon.

[shew]

It looks fine to me.