Abstract: In the case where specifics of an error have been detected out of an instance data that has been received by a receiving unit and that does not satisfy restrictions being applied to an instance data description and being defined in a dictionary that is meta data, a change proposal that has been created based on the specifics of the error and suggests a change that can be made on the dictionary is presented onto a dictionary editor terminal, based on dictionary change rules each of which defines, in the manner of a rule, a change that can be made on the dictionary in correspondence with an error pattern that is found during the instance data description. It is therefore possible to eliminate disparity between instance data editors and dictionary editors and to improve the quality of instance data.

Abstract: A data displaying apparatus includes a displaying unit that, when a search result contains an instance data generated based on an old version of a dictionary, displays the instance data generated based on the old version of the dictionary in a display mode that is different from the display mode in which the instance data generated based on a new version of the dictionary is displayed, according to an updated attribute extracted by an updated-attribute extracting unit and a display mode rule managed by a display-mode-rule managing unit.