Nowadays, much more than in the past, it is known that the success of software projects depends critically on the requirements. Goal Oriented Requirements Engineering - GORE, for example i Framework, says that requirements must represent the intentionality of a large number of social actors, which can be people or systems. Several Multi-Agent Systems (MAS) methods mention goals elicitation but they do not provide details of how this is performed, they mainly focus on goals modeling. In this context, there is still a lack of methods to cover the goal elicitation process. Only after eliciting goals, requirements engineers will be able to deal properly with goal models. Typically, this is a difficult task to carry on since requirements engineers are not familiarized with the domain from the early stages of software development. And, intentionality models, for example i Framework, can be complex and incompreensible. This thesis proposes a method called ERi c - Engenharia de Requisitos Intencional which provides an inquire process that can identify goals and softgoals in a bottom-up and simple elicitation approach together with one solution to reduce the problem of scalability of i models. The method ERi c also includes heuristics for modeling specification and a diagnoses aproach in order to analyze i models.