The evaluation of the use of urban open spaces has always been a concern for the landscape researchers. Although they have use different techniques to identify this relationship, sometimes conventional research methods do not sufficient enough to capture the complexity. Behaviour mapping offers advantages to urban open space specialists to collect data, conduct cross-sectional, statistical analysis, and illustrate spatial distribution of behaviours on powerful maps and figures. This paper proposes to provide brief information on development and use of TOWEC (Tool for Observing Water Experiences of Children) and adaptation of this tool on to portable devices (DTOWEC) for simultaneous data collection on the site. The TOWEC is innovative tool for evaluating landscape by observations and it is an attempt to evolve towards digital approach but D-TOWEC refers us to the future of observational research.