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| Type | Bachelor's Thesis |
| Scope | Discipline-based scholarship |
| Title | Dependency Usage Analysis |
| Other Titles | A Rarity or widely spread Phenomenon? |
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| Institution | University of Zurich |
| Faculty | Faculty of Business, Economics and Informatics |
| Date | 2021 |
| Abstract Text | Software artifacts are frequently reused to efficiently develop software. Build tools greatly sim- plify the usage of dependencies. Previous research mainly focused on the providing aspect of de- pendencies in effort to reduce the size of the dependencies themselves. State of the art build tools currently still package more dependencies than necessary for a build when unused dependencies are declared. We aim to pave the way for further research which focuses on reducing redundantly declared dependencies in build files of Java open-source projects. After having determined a data set of 21 Java open-source projects utilizing Maven or Gradle as build tools, we separate the used from the unused imports, followed by assigning the used imports to their corresponding depen- dency declared in their build files. We attribute the 9% of not assignable imports to the usage of transitive dependencies. 49% of dependencies declared are neither directly or inherently used throughout or sample data. These results give reason to study a larger sample and develop tools that aim to reduce the number of redundant code packaged during a build. |
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