Abstract: An information processing apparatus acquires first relevance information indicative of a relevance between space identification information identifying a space in a building and device-installation information that is indicative of a device or an installation and associated with the space identification information; acquires modification information for modifying an association between the space identification information and the device-installation information in the first relevance information; generates second relevance information indicative of a new association between the space identification information and the device-installation information on the basis of the modification information; and outputs the second relevance information.

Abstract: An information processing apparatus acquires first spatial information including division information indicative of divisions in a building and device-installation information indicative of a device or an installation disposed in a division; acquires space use information associating the device-installation information and use information indicative of a space use in connection with a device or an installation disposed in a space with each other; generates second spatial information by associating the use information with the division information included in the first spatial information on the basis of the space use information; and outputs the second spatial information.

Abstract: The server device includes a cache, and identification information of data used in a previously executed transaction. The server device compares identification information of data to be used in a transaction received from a client, with the identification information held by it. When the comparison result shows a mismatch, the server device executes the transaction after updating the cache by using data acquired from a persistent storage device, while when the comparison result shows a match, the server device executes the transaction without updating the cache. Then, the server device determines whether optimistic exclusion succeeded or failed, and in the case of failure, re-executes the transaction after updating the data in the cache by using the data acquired from the persistent storage device.

Abstract: The server device includes a cache, and identification information of data used in a previously executed transaction. The server device compares identification information of data to be used in a transaction received from a client, with the identification information held by it. When the comparison result shows a mismatch, the server device executes the transaction after updating the cache by using data acquired from a persistent storage device, while when the comparison result shows a match, the server device executes the transaction without updating the cache. Then, the server device determines whether optimistic exclusion succeeded or failed, and in the case of failure, re-executes the transaction after updating the data in the cache by using the data acquired from the persistent storage device.

Abstract: A transaction processing system, which controls execution of transactions based on optimistic exclusion, includes a server device, a data storage device, and a client device. The server device determines whether or not a transaction, received from the client device, belongs to a priority class, and sets the value of a flag of the same set as the data to be used by a transaction determined to belong to the priority class, to a value which restricts update by a transaction not belonging to the priority class. Then, the server device controls execution of the transaction based on optimistic exclusion.