Sure. But you are not really helping by not being precise! And I am quite certain that there is one major goal - such as a quickest route of the water. I suggest that you check with the literature - which is quite big.

A search string might look like this, or with smaller adjustments:

water network [supply, distribution*, system*] problem*

Nasiru Abdullahi

Agreed with Michael. You need to furnish more information of what you want. There are thousands of problems with water production, use and distribution

Tell us why it necessarily need to be a multiple objective involved; you don't need to complicate it that much, and especially if you are not very familiar with multi-criteria problems, you will probably make beginner mistakes. In fact I think I can say that the world outside of academia does not care for multiple criteria. Perhaps that's a hard pill to swallow, but that's the gist of it, I think. And the reason is that people outside of academia don't fathom what that is!

Dear Michael

I concur with you in your first sentences, but not in the lasts.

It is apparent that you are not aware of the thousands of companies that are using MCDM methods since mid 1950s. Only for Linear Programming, there are more than 70,000 large companies using it at present, specially in oil refineries, assets management, construction planning and many others

I guess that your assertion is based on data and statistics although you don't produce any, while be sure that I can.

There are thousands of papers detailing real-world projects treated by MCDM methods. I can speak by myself since I participated in many projects solved by MCDM methods in agriculture, water distribution, railways, indicators, scheduling, hydroelectricity, spatial problems, renewable energies, roads selection, fertilizers, etc. Is that enough? I have more.

And I am only one among the thousands of engineers, economists and environmentalist working oh the same. Again, I believed that you are not well informed or not connected with reality.