The Information Ecosystem Mapping (IEM) tool is used by DARAJA to understand how weather and climate information (WCI) flows within the city or community. 

It is a diagnostic tool that helps to understand the channels through which users gain information and why these channels are chosen over others. It identifies the existing actors in the system who are involved in producing, packaging and disseminating information, and also the other actors who could be involved which could lead to a more effective communication system. It is also a design tool that can be used to design solutions by leveraging existing communication channels and overcoming deficiencies.