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Over 25% of time either searching for or looking at code National Research Council in Canada (Singer, 2006) New project members: 60-80% of time, drops to 20% as one gains experience Every workday spent by the developer figuring out how the thing works and why it was designed that way is an expense. Jumping between various abstraction levelsįor product owners and management, the biggest concern should be associated costs. Working on one abstraction level at a time Intensions are not clear and have to be deduced Reading and navigating someone else's code
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Why is project comprehension so difficult? IEEE International Conference on Program Comprehension) on the subject, with its facets spanning theoretical math, computer science, psychology and brain physiology (yes, they even used MRI to study our brains: Measuring Neural Efficiency of Program Comprehension). There are even dedicated international conferences (e.g. Using a behavioral theory of program comprehension). However, it's enough of a deal to constitute a separate branch of scientific research dating back to the 1970s (e.g. It's rarely a topic for water cooler conversations.
#New projects in java with source code software
Project comprehension (more generally - program comprehension) is one of the most overlooked areas in software development. If the described problem sounds familiar, it should. Even after this initial period, the developer's comprehension of the project is far from complete. During this time (which, depending on experience, may take up to six months) the developer is not expected to deliver a lot of value. Documentation is not always up-to-date and accurate, and only a few team members may have a comprehensive picture of the project (whom you'll have to catch for short Q&As in between meetings, code reviews, and emergency deployments).įor many developers, this means spending the first several months mostly becoming familiar with the project i.e.
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By the time a new developer joins the team, the project will likely have been in development for a couple of years and contain code contributions from dozens of developers, most of whom left the project long ago. A modern Java application is a complex system that frequently operates as a node in a larger enterprise network.