| Summary: | 碩士 === 東海大學 === 國際貿易學系 === 99 === As mobile computing devices becomes pervasively, more and more users were interested in using smart phone. Costumers use GPS in smart phone rather to the traditional paper map and purchase the personal navigation devices. Especially for Logistics operators in Supply chain, who heavily depend on Global Position System in order to effectively and efficiently fulfill just-in-time delivery. On the other hand, enterprises want to control and manage their operation and organizational targets efficiently; they can use internal auditing to improve the effectiveness of risk management. The scope of internal auditing is not just only in finance and accounting department. As the development of economics, the scope of internal auditing expanded to cover any operations in organization.
In order to help internal auditors to control and manage logistics operations effectively, this study analysis the GPS navigational function of Nokia N78 first. And thinking about the situation about GPS track logs was deleted by someone, can we use the data recover software to recover those deleted files? When those deleted files werebeen recovered successfully, they can be efficient evidences for internal auditors? Then the study analysis the hiding information which existed in PAPAGO! System files. According to this study result, N78’s GPS track logs (kml) were recorded in microSD card, and track logs will not lost when turn the cellphone off. The auditors can check the established time information (GMT) in windows and acquire those GPS track logs easily. The mobile user deletes GPS track files directly from Nokia N78 or through PC connection via micro SD card reader, those GPS longitude and latitude in deleted files will be recovered successfully. This study found that any Point of Interest (POI) has been added in “My Favorite” will be recorded into PPGOINE.DAT. And the user clicks any land mark from the search results, the selected targets will be saved in RECENTMP.DAT.
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