This abstract presentation shall address issues arising from scarcity of water supply due to climate change, increasing demand of the urban population, limited water resource, and the inaccessibility to deliver water supply to rural communities of Papua New Guinea. The rainwater harvesting system is being considered. This paper shows the application of Axiomatic Design (AD) in designing of a prototype rainwater harvester for visual presentation of the infrastructure. The use of AD helps build the model without compromising its feature of the geographical set up of the place. It is gravity driven considering the rainfall scenario, the location, the demand, and health considerations. (C) 2016 The Authors. Published