Abstract: Components of a survey contractor computer 1, a data server 2 under the management of the contractor computer 1, a respondent's personal digital assistant 3, and a survey client computer 4 are connected by wired, wireless, or infrared communications media, e.g., the Internet, or virtual private network. The personal digital assistant 3 is provided with a direction key 301 for cursor movement and data selection through key operation. A survey application 201 is storing survey question data 101, and reply option data 102 that is totally or partially associated with the direction key 301 of the personal digital assistant 3 on the direction basis. The survey application 201 is storing also a reply entry module 202 that determines the reply option selected by moving a cursor using the direction key 301 as the reply for the question. With such a structure, the survey can be conducted with the higher reply efficiency without imposing the burden on respondents both in timewise and moneywise.

Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.