Tag: JValue

Every semester, in our course on Methods of Advanced Data Engineering (MADE), students work with Python and Jayvee, our domain-specific language to model data pipelines as part of the JValue project. During the semester, they also complete a data science project of their choice using open data. ...

Abstract: Exchanging open data plays an increasingly important role in the domain of mobility. A wide range of participants provide and consume data, involving subjects such as traffic management or public transportation. To make use of the data, programming proficiency is necessary in order to rea...

Abstract: This thesis deals with the implementation of an open source trip planner for the public transport association VGN, the results of which take into account both parking the bicycle at a stop and taking the bicycle on public transport until the destination. In principle, software already exi...

Abstract: Open transport data enables innovation by offering a vast amount of information for developers, researchers, urban planners, and entrepreneurs to create new applications, services, and business models. However, the lack of specific guidelines for making data “open” has led to the exis...

Abstract: Nowadays, many applications are developed using a microservice-based architecture. In this context, a software product consists of many individually developed services that communicate over a network. As microservices do not necessarily share a common code base, syntactic interoperability...

Abstract: The JValue Open Data Service (ODS) is an ETL data pipeline that provides data extraction from different source systems (Extract), performs transformations on the extracted data (Transform), and loads the data to a target database (Load). There are different kinds of stream processing engi...

Abstract: Many modern software applications and research projects depend on the ability to access high-qualitative data sources. Even though there is already a large number of openly available data sets, such data sets are often hard to (re)use due to various barriers such as incomplete documentati...