Ethnography, a term derived from the Greek words 'ethnos' meaning ‘folk, people or nation’, and 'graphein' meaning ‘writing’, serves as a reliable tool for understanding the qualitative aspects of social and cultural life. It’s a methodological framework, often used in anthropology, which seeks to describe and interpret cultural behavior. As an observational science, it provides us with a detailed account of everyday practices, beliefs, social norms, rituals, and behaviours in specific cultural settings.

The practice of ethnography has roots dating back to the early 20th Century, when anthropologists began to reject evolutionary and speculative approaches to understanding other cultures. Key figures, like Bronislaw Malinowski and Franz Boas, opened doors to immersive fieldwork, replacing armchair anthropology's hypothetical reconstructions with grounded observations on social practices and behaviors.

Malinowski's work among the Trobriand Islanders during World War I revamped ethnographic traditions, introducing participant observation as a standard practice. He pushed for full-scale immersion in the society under study to generate a holistic view of its social fabric. This paradigm shift from observer to participant marked the beginning of modern ethnography. Meanwhile, Boas, often recognized as the father of American anthropology, emphasized the importance of understanding particular cultures in their own terms, thus dismissing the hegemony of western cultural norms.

The ethnographic process primarily employs qualitative methods such as interviews, observation, and document review. Two key techniques fall under this umbrella: participant observation and ethnographic interviewing. Through participant observation, ethnographers infiltrate the cultural group of interest, participating in everyday activities while noting the nuances of social behaviors and interactions. The degree of involvement may vary from passive participation to active engagement, depending on the research goals and logistical constraints.

In ethnographic interviews, the ethnographer seeks information from key members of the culture. These interviews can be structured, bearing specific questions guided by research objectives, or can be unstructured, allowing the interviewee to narratively unfold cultural practices, norms, or beliefs. The interviewer actively listens, observes, and tactfully probes to comprehend and document the world from the native's point of view.

Through these techniques, ethnographic researchers gather a wealth of data often presented as thick descriptions. These in-depth portrayals of cultural contexts and meanings substantially contribute to understanding the diversity and complexity of human life. Through its focus on the culture-specific, the everyday and the ordinary, ethnography uncovers the richness and multifaceted nature of human life entangled across time and space.

It's worth saying how these approaches offer ethnographers platforms to look beyond parochial, ethnocentric, and preconceived biases about the cultures under study. Ethnography opens up dialogic spaces for native voices to express their feelings, thoughts, and experiences, and for audiences to perceive and interpret these in the complex web of social and cultural life. These interpretive dialectics form the backbone of ethnographic enterprise, making it a valuable tool in the study and appreciation of human cultural diversity.