An "overview of techniques" refers to a general view or summary of methodology used in a particular field. Synonyms for this phrase include "summary of methods," "technique summary," "methodology overview," "review of techniques," and "method overview." These synonyms can be used interchangeably depending on the context and the specific field being referred to. An "overview of techniques" is an essential aspect of research and development, as it helps to provide a clear understanding of the methods used to obtain a particular result, and can be used to identify potential issues and improve upon existing practices.