Recursive Algorithm of River and Basin Data Model based on Composite Design Pattern

We propose an algorithm which specifies pattern names for retrieving, exploring the adapted patterns on the stage of design without pattern language that is redundant abstraction. By applying composite design pattern to the design of the object-oriented recursive river and basin data model interface for Total Maximum Daily Load discipline, We have the result showing far better improvement of performance in the category of polymorphism and especially of reusability than conventional basin models. Thus, this study can contribute on the reducing iterations and repetitions of up-dating and committing after the spatial data changes that are frequently occurred in the process of the environmental GIS model developments.