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*Productivity data is based on a series of studies Autodesk commissioned from outside consultants. These seven tool-combination studies compared the performance of generic AutoCAD and AutoCAD-specific tool sets when used by experienced AutoCAD users to perform common tasks. In each of the seven studies, improvements in overall productivity were calculated by first calculating the sum of the time required to complete a specific task in the tool set and the sum of the time required to complete the corresponding task in regular AutoCAD, and then calculating these two times. The percentage difference between the sums. Like all other performance tests, test results may vary depending on the computer, operating system, filters, network environment at the testing location, and the source of the test sample. The test samples are from the UK and the testing location is in the UK, so the final results may be different from the results of tests conducted in other regions where you live. Product information and specifications are subject to change without notice. Autodesk provides this information "as is" and does not intend to provide any express or implied warranty of any kind with respect to the products and services related to this test.