Abstract: An information searching system 1 includes a conversation-history storage unit T11 configured to store conversation histories for inquiries, a conversation-history acquisition unit P132 configured to acquire, from the conversation-history storage unit T11, a predetermined conversation history corresponding to a search query based on input information, a search-query amendment unit P114 configured to amend the search query on the basis of the predetermined conversation history, and a searching unit P115 configured to search, on the basis of the amended search query, the conversation histories stored in the conversation-history storage unit T11 and output a search result.

Abstract: A virtual machine deployment determination unit that manages a plurality of physical machines as machines in which a virtual machine is to be deployed acquires setting information including a type of software that is running on the virtual machine and an operating policy of the software, refers to deployment condition determination information which prescribes a deployment condition for selecting the physical machine to become the deployment destination of the virtual machine is associated with the operating policy of the software and stored therein based on the acquired setting information, and determines the physical machine to become the deployment destination of the virtual machine by selecting the physical machine among the plurality of physical machines based on the referral result.

Abstract: A virtual machine deployment determination unit that manages a plurality of physical machines as machines in which a virtual machine is to be deployed acquires setting information including a type of software that is running on the virtual machine and an operating policy of the software, refers to deployment condition determination information which prescribes a deployment condition for selecting the physical machine to become the deployment destination of the virtual machine is associated with the operating policy of the software and stored therein based on the acquired setting information, and determines the physical machine to become the deployment destination of the virtual machine by selecting the physical machine among the plurality of physical machines based on the referral result.

Abstract: A retrieval apparatus 100 for searching document data comprises a document storage area 141 for storing documents to be searched and a document management table 142 for storing a data size of a document such that the data size is associated with a document ID for identifying the document. The retrieval apparatus 100 reads out from the document management table data sizes of documents to be searched, and calculates a retrieval document size by adding up the read out data sizes, and calculates an estimated time t1 taken for a retrieval process by the index scan method and an estimated time t2 taken for the retrieval process by the text scan method, based on the retrieval document size. The retrieval apparatus 100 compares the estimated times t1 and t2, and decides which method to use for a retrieval process, the index scan method or the text scan method.

Abstract: The amount of work processing (main processing amount) of a database is acquired and accumulated. A value (main processing index) indicating the transition of the amount of main processing amount available in a time frame that is presumed to be required for backup is calculated by using the amounts of main processing accumulated during the latest period of time. The main processing index is compared with the backup executability reference value which is a threshold value determining the backup executability. If the main processing index is smaller than the threshold value, backup is executed. If the main processing index is larger than the threshold value, backup is not executed but the amount of main processing is again acquired to calculate the main processing index, and the main processing index is compared with the backup executability reference value.

Abstract: A retrieval apparatus 100 for searching document data comprises a document storage area 141 for storing documents to be searched and a document management table 142 for storing a data size of a document such that the data size is associated with a document ID for identifying the document. The retrieval apparatus 100 reads out from the document management table data sizes of documents to be searched, and calculates a retrieval document size by adding up the read out data sizes, and calculates an estimated time t1 taken for a retrieval process by the index scan method and an estimated time t2 taken for the retrieval process by the text scan method, based on the retrieval document size. The retrieval apparatus 100 compares the estimated times t1 and t2, and decides which method to use for a retrieval process, the index scan method or the text scan method.

Abstract: An operations management method for performing an operations management of a database, which is used by at least one of an application and a middleware is proved. In the operations management method, operations management information including execution details information and execution timing information required for performing the operations management of the database are registered in a database from at least one of the application and the middleware. At a specified time to start operations management of the application, a database operations management execution processing judges an execution timing for executing the operations management according to contents of the operations management information. At the execution timing of the operations management, the database operations management execution processing starts operating management utilities of the database to execute the operations management of the database.

Abstract: The execution time frame of on-line backup which lowers the degradation in services will be determined, even in a case where the amount of main processing of a database management system irregularly varies.

Abstract: A database management system that performs a first internal database operational management according to instruction information concerning the first database operational management. When a second database operational management additionally is performed by the database management system according to instruction information given from outside concerning the second database operational management, the database management system extracts information that includes a time range scheduled for executing the second database operational management.