What term describes the informal communication system through which messages are passed within an organization?

The term that describes the informal communication system through which messages are passed within an organization is "Grapevine Communication." This form of communication is characterized by the way information spreads unofficially, often bypassing established channels. It typically occurs spontaneously among employees through conversations, social interactions, and a network of personal connections.

Grapevine communication serves several functions within an organization. It provides employees with information about organizational changes, rumors, and social dynamics that may not be communicated through formal channels. It can also help build connections and relationships within teams and the broader workforce, fostering a sense of community despite its informal nature.

In contrast, formal communication refers to structured, official methods of communication established by an organization, such as memos, reports, and meetings, which do not encompass the informal pathways of information sharing. Official channels denote the defined pathways through which official messages are directed, while structured dialogue represents more planned conversational exchanges, typically lacking the spontaneous nature that characterizes grapevine communication. Thus, the correct term for informal communication within an organization is indeed grapevine communication.