Research design is the basic stone of a research.

Design Research Unit (DRU) was founded in London, England in 1942 during World War II. The company was established as a multidisciplinary design consultancy firm with a focus on industrial and graphic design, architecture, and town planning. DRU played an essential role in the post-war reconstruction of Britain, and many of its designers were involved in the Festival of Britain in 1951, which showcased modern design and technology to the public. DRU was one of the pioneering design firms of the modern era and had a significant influence on the development of design thinking and practice in the post-war period. The company continued to operate for several decades, and in 1997, it merged with another design consultancy firm to form a new company, Design Bridge.

research design is the blue print showing the structure of the research process, while research method is the means of gathering evidences for a particular research design.

What are the key features of narrative research design?

Sample design and research design are two closely related concepts in research methodology, and the two are often interdependent.

Research design refers to the overall plan or strategy for conducting research, including the selection of research methods, data collection procedures, and data analysis techniques. The research design is typically determined by the research question and the purpose of the study.

Sample design, on the other hand, refers to the process of selecting a sample from a larger population for research or data analysis. The sample is a subset of the population that is selected to represent the population's characteristics accurately. The sample design is determined by the research question, the research design, and the population's characteristics.

The relationship between sample design and research design is that the sample design is a critical component of the research design. The research design determines the overall approach to the study, while the sample design determines the specific subset of the population that will be studied.

The research design guides the selection of research methods, data collection procedures, and data analysis techniques, while the sample design determines the size of the sample, the sampling method, and the criteria for inclusion in the sample. The sample design must be aligned with the research design to ensure that the sample represents the population's characteristics accurately and that the results are valid and reliable.

Therefore, sample design and research design are interdependent and must be carefully considered when conducting research to ensure that the results are meaningful and accurate.