This document provides justifications for the approaches used in a research project to develop an e-menu prototype for a Thai restaurant. It discusses:
1) The relationship between research objectives, approaches, and outcomes using a case study methodology.
2) The justification of using a case study methodology, RAD software development, direct observation for requirements gathering, and group interviews for data collection. Reasons for each approach are provided.
3) An action plan was needed to manage the time-consuming nature of some approaches like case study and direct observation. RAD and prototyping helped reduce time for implementation.