Investigating Transparency in Software Ecosystems

Supplementary material for the paper "<em>Investigating Transparency in Software Ecosystems</em>", accepted at the XXXVII Brazilian Symposium on Software Engineering (SBES 2023). This study aims to characterize transparency in SECO. To do so, we reviewed the existing literature on scientific databases and digital libraries to map and analyze the state-of-the-art of transparency in SECO. As a main contribution, we provide a comprehensive overview of approaches, constraints, processes, and challenges related to transparency in SECO. This knowledge can help organizations, software developers, and researchers to adopt initiatives that contribute to the open flow of information during the opening of the SECO, engaging and attracting new actors to the common technology platform.