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OCR for page 85
Database Analysis 85 Figure 4-4. Example of tabular relationships in MISLE. 4.7.4 Data Compilation Data from the accident form are transferred to the appropriate fields in the MISLE database. As the status of the investigation proceeds, the data are updated. 4.7.5 Accuracy and Completeness Assessing the accuracy of the entries in the MISLE database is difficult for outside investiga- tors. Since the majority of the events entered into MISLE involve legal action taken on the part of the Coast Guard, the accuracy of the entered data is likely to be very high. The completeness of the data entry is difficult to judge as well. Although all of the fields have entries, in many cases