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In recent years, open source software - more properly, free and open source software - has emerged as one popular solution to the so-called "software crisis". Advocates regard F/OSS as an agile, practice-led initiative that addresses three key issues namely cost, time scale and quality. F/OSS products are usually freely available for public download. The collaborative, parallel efforts of globally distributed developers allow many F/OSS products to be developed much more quickly than conventional software. Many F/OSS offerings are recognized for their high standards of reliability, efficiency, and robustness; products such as GNU/Linux, Apache, and Bind have become "category killers" stifling the incentive to develop any competing products.
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Brian Fitzgerald (2004) studied this question.
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