CP&OR feedback on solvers
Dear CP & OR practitioners,

As you may know, the work on Choco 3 has lead to great improvement over Choco 2, both in terms of performance and reliability. We are now defining new challenging objectives for the next few years. Please help us to build the solver you need by answering these few questions:
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What kind of applications are you working on?
Are you comfortable with the Java language?
Clear selection
How often do you look at the source code of the solver you are using?
Clear selection
Do you often have to use float variables ?
Would you prefer using your solver as a black box that is tuned by default or as a white box that you can tune yourself?
Clear selection
In your opinion, what is the importance of the following solver attributes?
useless
may be useful
important
very important
Simplicity to use
Simplicity to integrate within an application
Performance
Scalability
Documentation
Free price
Compliance with Java
Compliance with C++
Compliance with Python
Compliance with .Net
Compliance with MiniZinc
Clear selection
What kind of support services could accelerate your research/business?
useless
may be useful
important
very important
Training you over both simple and advanced features of the solver
Answering technical questions about the solver
Migrating your code to the last version of the solver
Debugging your program
Working on improving your model
Developing some specific features on demand
Clear selection
Have you already used Constraint-Programming? Why (not)? Which solver? Was it successful?
Have you already used Choco? Why (not)? Which version? Was it successful?
What should we absolutely keep in the current Choco version?
What should we absolutely change in the current Choco version?
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