@misc{krause_hard_2019,
	address = {Potsdam},
	title = {Die {Hard} 1.1024.0: backward compatibility of a search engine with persistant {IDs}},
	url = {https://doi.org/10.5446/42501},
	abstract = {Semantic versioning can be used to describe the downward compatibility of software. Using the example of a search engine for linguistic annotations, we show which problems can occur when operating a search-based service with persistent IDs for queries and results and present possible solutions. Different components, such as the software, the domain-specific query language, and the web service, provide different guarantees and make different demands on downward compatibility. By migrating an existing PostgreSQL-based system to our own implementation, we gain important practical experience in the downward-compatible modernization of an existing system, which we will share in this talk.},
	author = {Krause, Thomas and Druskat, Stephan},
	month = jun,
	year = {2019},
	note = {deRSE19 - Conference for Research Software Engineers in Germany},
}

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