1. An information processing device that is connected to a projecting device that projects an annotation image input from an external terminal onto a projection region including an object, and is connected to an image capturing device that captures an image of the projection region, the information processing device obtaining image data to be input to and output from the projecting device and the image capturing device through a communication with the external terminal, the information processing device comprising: a memory that stores a database including CAD data to be used for designing the object, and attribute information thereof; an acquiring unit that acquires identification information of the object; an identifying unit that identifies the CAD data of the object included in the database, based on the acquired identification information of the object; and a controller that associates data of an image captured by the image capturing device with the CAD data of the object identified by the identifying unit, and causes the memory to store the data of the captured image associated with the CAD data, so that the data of the captured image can be viewed based on the attribute information of the CAD data of the object identified by the identifying unit.