What do you mean by 'Research Design' ?My posted question is related with Research Methodology Subject.

Research design is the description of the overall
structure of the intended research identifying the various element or components of
research, the type of each element, and how these elements relate to each other. The
purpose of research design is to select and define the overall structure and methods of
intended research that will enable us to answer the initial research question
effectively and efficiently.

The research design provides
answer to questions like the following:

• Type of
  research - such as qualitative, quantitative or
  exploratory.


• Research methods to be used  - such as
  laboratory experiment, field survey, and case
  study.


• Typical design of
  experiments.


• Method of data collection - such as
  observation, questionnaire, or interview.


• Nature of data
  analysis.