The research methodology of linguistic atlas is dealt with. Namely, this paper: (i) systematizes the phases of project execution of linguistic atlas, according to the participants' different technical roles involved; (ii) puts forward a new technique called 'triple-effect technique', which is related to semantic-lexical data collection, to its labeling, and to its cartography; and also (iii) sorts out both metalinguistic-epilinguistic and ethnographic statements made by informants at semantic-lexical interview.
Moreover, it is proposed a semantic-lexical elicitation model structured as an algorithm.