What differentiates IWRM from traditional water management approaches is the idea that water security can only be reached if different sectors that use water resources share information and collaborate on management issues. Another major difference is the meaningful involvement of stakeholders in the decision-making and implementation process. Both of these are impossible to achieve without communication. But the more diverse the actors are, the more likely they are to misunderstand each other or to pursue different kinds of interests, and the more communication specifically for conflictive situations might be needed. Communication is fundamental to any kind of success in IWRM.
Changing the behaviour of water users towards more sustainable practices is a necessary step in achieving water security. One way to promote such change is through economic instruments. Economic incentives involve the use of prices and other market-based measures to improve the way water is managed and used. They provide incentives to water users to use water carefully, efficiently, and in a manner consistent with the public interest. They have both positive and negative effects, rewarding users that recognise the true value of water and penalising profligate and anti-social use.