The natural system is the starting-point of any Building with Nature project. In order to develop solutions, the general scope and structure of the system need to be defined. To understand the physical, functional and regulatory aspects that are involved, a consistent systems approach is required.The Systems Analysis tool provides guidance to be able to apply this approach within the Building with Nature context, providing the theoretical background behind system analysis. For a more applied description of a system the Ecomindmap or the stakeholder analysis tool can be used. By definition any system analysis deals with elements and relationships between those elements. The action of the whole can only be understood by knowledge of the interactions of all the parts. The work of systems analysis is to select a system or subsystem to be analysed, define its boundary, identify the components and to develop models that describe the interaction of these components. It starts by insisting on a clear understanding of exactly what the problem is and the goal that should dominate the solution and lead to the criteria for evaluating alternative avenues.
The Frame of Reference method aims to structure the interaction between end-users and specialists in application-oriented knowledge development. Key is to use the end-user's information requirements as an explicit starting point for knowledge development, and to continually match specialist research with the information need of end-users. A core element of the method is the definition of fit-for-purpose quantifiable performance indicators. The tool is potentially useful in any situation where miscommunication may arise in interaction between interdependent actors, with different states of knowledge, working on different parts of the same overall problem. Applying this method increases the probability that specialist research produces results that are applicable in policy development or practical application (van Koningsveld, 2003). The method relies on logic and structure and may thus be used by anyone.