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An NAFP Project: Use of Object Oriented Methodologies and Design Patterns to Refactor Software Design

Gholam Ali Shaykhian, NAFP Fellow Engineering Directorate National Aeronautics and Space Administration Kennedy Space Center Ali.Shaykhian@nasa.gov

Rhoda Baggs, Ph.D. Assistant Professor of Computer Sciences University College Florida Institute of Technology rbaggs@fit.edu

Introduction In the early problem-solution era of software programming, functional decompositions were mainly used to design and implement software solutions. In functional decompositions, functions and data are introduced as two separate entities during the design phase, and are followed as such in the implementation phase. Functional decompositions make use of refactoring through optimizing the algorithms, grouping similar functionalities into common reusable functions, and using abstract representations of data where possible; all these are done during the implementation phase. This paper advocates the usage of object-oriented methodologies and design patterns as the centerpieces of refactoring software solutions. Refactoring software is a method of changing software design while explicitly preserving its external functionalities. The combined usage of object-oriented methodologies and design patterns to refactor should also benefit the overall software life cycle cost with improved software.

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Shaykhian, G. A., & Baggs, R. (2007, June), A Nafp Project: Use Of Object Oriented Methodologies And Design Patterns To Refactor Software Design Paper presented at 2007 Annual Conference & Exposition, Honolulu, Hawaii. 10.18260/1-2--2116