Sustainable management of any physical resource requires a good understanding of the distribution and quantities of that resource. Thus, information is highly valuable but it can be complex and hard to manage. Integrated management approaches in particular require massive amounts of spatially and temporally varying data from many different sectors: the quality and quantity of water resources; the geography of the area; the local geology and soil; the human communities; and the land use patterns is all important and interrelated information. One of the biggest challenges in IWRM today is to represent the full scope of this information, of the variables, interactions, and complexity that every water project and policy is confronted with. Analytical tools are needed to interpret the data in a way that makes it usable for decision makers. Models and Decision Support Systems (DSS) do exactly that.
The unique value of GWP lies in its capability to mobilise action on the global water crisis through a combination of social capital, shared values, credibility within the global water community, bottom-up orientation, and expertise. This ensures that the ‘voices of water’ can influence local, national, regional, and global development priorities.
Coordination and facilitation bodies (CFBs) and instruments play the very important role of articulating and harmonizing the actions and visions of the numerous entities concerned with water management. Whether it is at the international, national, or even regional level, mediators are always needed in dealing with water related issues. Tools under this section can be seen as tying strings for an IWRM strategy and for good water governance to crystalize.