Malcolm Isaacs, an enterprise agile expert at HPE, says: Thus, many organizations start by introducing some pieces of agile without entirely letting go of many of the waterfall practices, resulting in this hybrid approach. ![]() The survey targeted organizations with greater than 500 employees, and if these large organizations have established processes and tools that use traditional practices, it would take significant time and effort to switch to using only agile practices. ![]() Why then, would organizations ignore these words of warning? One reason is that in a large enterprise, it’s very difficult to switch from traditional waterfall methodologies to a pure agile approach. But whatever term you use, most agile experts strongly discourage the practice of mixing waterfall and agile. Mixing the most popular agile framework, scrum, with waterfall, has been described with a variety of terms, including scrummerfall, water-scrum, and water-scrumfall. It’s no surprise that the survey results conclude that mixing agile and waterfall yields lower success rates than agile approaches. Why so many organizations use a hybrid model If hybrid is such a bad idea, why did one-third of organizations surveyed follow the hybrid path? Why have so many organizations that followed the hybrid model failed to meet expectations? And what can organizations do to improve their chances of success, particularly when working with a hybrid model? But that directly contradicts the results of a report by CAST Software, which concluded that the hybrid approach leads to higher quality than either pure waterfall or pure agile. Why? Because the hybrid approach “straddles two development methodologies that naturally pull in different directions,” the report says. ![]() While agile-only organizations rated themselves the highest, hybrid projects fared the worst on every measure. Of those surveyed, nearly one-third (32%) were using an agile-waterfall hybrid model. A recent HPE survey of 403 Development and IT professionals, performed by YouGov, revealed that pure agile projects are more successful than those that use a combination of agile and waterfall approaches.
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