Labels:text | screenshot | number | font | handwriting OCR: A MODEL OF DISTINCTION DOD OSI ATM Application Presentation Session Higher layers Transport Network Network Data link ATM Adaptation layer IAAL) Physical Physical ATM Physical Figure 5: The OST, ATME; and DOD netbork models are based on the same concepts, Note that the'ATAf Adaption layer is not limited to the OSI Data-link layer; hence the dotted line.