Do new features result in increased productivity? AutoCAD was first released in December 1982. Each release since then has offered numerous new features and functions that have contributed to improve the overall productivity and usefulness of the software beyond each previous release. One could argue that by upgrading to the latest release, customers would actually save money because the features and functions of the new software would enable them to complete their work faster than would be possible had they used an earlier version of the software. Yet many customers skip releases for economic reasons. The question becomes one of quantifying the actual productivity improvements a user could reasonably expect to achieve by upgrading from their old version of AutoCAD to the latest release. Developing the Study Criteria In the spring of 2010, Autodesk approached me to conduct a productivity study comparing AutoCAD 2008 to AutoCAD 2011. I devised a study in which a number of drawings typical of those produced by actual AutoCAD customers would be recreated multiple times using both AutoCAD 2008 and AutoCAD 2011, utilizing features and functions judged to be the most expedient method for producing the desired end results. The time required to create each drawing would be recorded using a stop watch and rounded to the nearest minute. After considering nearly 100 different drawings produced by actual AutoCAD users, I selected eight drawings, most of which I concluded would require a typical user anywhere from an hour to half a day to complete. Each drawing was chosen based on a number of criteria designed to showcase one or more features of the software that did not exist in AutoCAD 2008 but were added in subsequent releases. While each drawing could certainly be produced using the features and functions available in AutoCAD 2008, the advanced capabilities added in subsequent releases would likely enable a typical user to produce the drawing faster using AutoCAD 2011. Since the premise of the test was to determine how much time could be saved by using a new feature, the test itself was already predisposed to show that using AutoCAD 2011 is more productive than using AutoCAD 2008. However, since each of the drawings used in the study was originally produced using versions of AutoCAD predating the 2008 release, I concluded that the study would present a realistic analysis of the productivity gains a typical user could achieve. In order to eliminate additional biases in the design of the study, such as improvements in speed simply due to increasing familiarity with the sample drawings, some of the sample drawings were produced first using the 2011 release of the software and then produced using AutoCAD 2008, tilting any such improvements in the favor of the older release. Each drawing was also reproduced in each release several times and only the fastest times were ultimately included in the results…
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