In a computer software application involving object calculations using numbers or symbols assigned to an object, multiple physical objects may be defined and grouped logically. The method for DDR provides easier display of data to a user and calculation with the data, by representing and maintaining attributes of a physical object in two formats (raw data and display data) coherently, conveniently, and consistently throughout a software application. The DDR may be accomplished through logically grouping and storing the raw data and the corresponding display data in a same instance of a data structure. The method for DDR may be implemented using a computer programming language, such as C or other types of programming language. Preferable, the method for DDR may be used in connection with most compiled languages that support the use of data structures and type definitions.