[rules-users] Re: Drools : usage as appointment booking engine ?

[Wim Vancroonenburg]

That makes a lot of sense. Metaheuristics and local search methods 
(which Drools Solver supports) are great for creating schedules, roster, 
plannings, ... . I've been using Drools Solver for a bed assignment 
problem in health care (more of a benchmark problem) and it performs 
well. Colleagues of mine are solving exam-timetables and 
course-timetables  with metaheuristics, so these type of problems should 
be equally doable with Drools Solver.

Drools Solver does not have any time "operators" like Nicolas says, that 
is something that your model should implement.

Sincerely,

Wim Vancroonenburg

Greg Barton wrote:
> Well, Fusion is mainly geared towards processing incoming dynamic events.  
> 
> Drools-solver would be best for creating the appointment schedule.  However, if you want to react to real time changes that may affect your schedule, you could always use drools-fusion for that. (i.e. we have an appointment for Bob, Alice, and Chuck in Room D on Monday.  Then an event comes in saying Chuck is sick within 30 minues of the appointment.  If Chuck is a critical member of the meeting the system decides to reschedule, but without the "only on Mondays" constraint.)  
> 
> So drools-solver would create the schedule, and drools-fusion would decide in real time based on the current schedule structure and the incoming events whether to respaawn a solver session to adjust the schedule.  Does that make sense?
> 
> --- On Thu, 5/7/09, Damien Raude-Morvan <drazzib at drazzib.com> wrote:
> 
>> From: Damien Raude-Morvan <drazzib at drazzib.com>
>> Subject: Re: [rules-users] Drools : usage as appointment booking engine ?
>> To: "Rules Users List" <rules-users at lists.jboss.org>
>> Date: Thursday, May 7, 2009, 10:50 AM
>>> Hello,
>> Hi Nicolas,
>>
>>> you should look at drools-solver
>>> here is a link to the
>>>
>> documentation<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-solver/html_single/index.html>
>>
>> Thanks this documentation, I was using oudated
>> documentation from
>> http://users.telenet.be/geoffrey/tmp/solver/manual/html_single/
>> .
>>
>> I've evaluated drools-solver, for example trying to
>> evolve
>> "lessonschedule" sample to include some time
>> constraints but I failed to
>> use time "operators" in drools solver.
>>
>> I found Drools Fusion time constraints (before, inside,
>> meets) interesting
>> but for now haven't been able to build something with
>> it. Drools Fusion
>> "StockTick" sample seems oriented to STREAM event
>> and not to managing time
>> slots and constraints on this time slots.
>>
>> Anybody having experience with such problems ?
>>
>> Regards,
>>
>>> 2009/5/7 Damien Raude-Morvan
>> <drazzib at drazzib.com>
>>>> Hi,
>>>>
>>>> I'm evaluating use of Drools 5 as an
>> appointment booking engine.
>>>> My input data are :
>>>> - some time slots, defined with a start and end
>> time.
>>>> - some appointment constraints (only monday, only
>> morning, appointment
>>>> theorical duration)
>>>>
>>>> I've looked at Drools 5 Fusion without finding
>> a way to go with this.
>>>> Can someone give me some pointer / start URL about
>> how to solve this
>>>> kind
>>>> of problems ?
>> -- 
>> Damien Raude-Morvan / www.drazzib.com
>>
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> 
> 
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