Abstract: An information providing system including circuitry; and a memory storing computer-executable instructions that cause the circuitry to execute connecting, via a network, to a first managing system configured to manage measurement information measured by a sensor; receiving, from the first managing system, the measurement information of the sensor and identification information identifying the sensor that has measured the measurement information; acquiring specific information corresponding to the received measurement information, from a storage in which the identification information of the sensor is associated with the specific information for specifying a resource on which the sensor is installed; generating environment information to be provided to a terminal, based on the acquired specific information and the received measurement information; and providing the generated environment information to the terminal.

Abstract: An information processing device includes circuitry that acquires a message to be transmitted to a transmission destination and user information of the transmission destination. The circuitry obtains a piece of information indicating a specialty from the message. The circuitry stores, in a memory, the piece of information indicating the specialty in association with the user information of the transmission destination. The circuitry searches for a user, in response to an inquiry related to a target specialty and according to content of the inquiry, based on one or more pieces of information indicating one or more specialties including the piece of information indicating the specialty. The one or more pieces of information are previously stored in the memory.