The current systematic review includes a comprehensive 3-tier strategy (manual search, backward snowballing, and database search). The accuracy of the search methodology has been analyzed in terms of extracting related studies and collecting comprehensive and complete information in a supplementary file. In the search methodology, qualitative criteria have been defined to select studies with the highest quality and the most relevant among all search spaces. Also, some queries have been created using important keywords in the field under study in order to find studies related to the field of the cloud broker. Out of 1928 extracted search spaces, 171 search spaces have been selected based on defined quality criteria. Then, 1298 studies have been extracted from the selected search spaces and have been selected 496 high-quality papers published in prestigious journals, conferences, and workshops that the advent of them have been from 2009 until the end of 2019. In Systematic Mapping Study (SMS), 8 research questions have been designed to achieve goals such as identifying the most important and hottest topics in the field of cloud broker, identifying existing trends and issues, identifying active researchers and countries in the cloud broker field, a variety of commonly used techniques in building cloud brokers, variety of evaluation methods, the amount of research conducted in this field by year and place of publication and the identification of the most important active search spaces.

中文翻译：

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Cloud Broker：系统映射研究

当前的系统评价包括全面的3层策略（手动搜索，向后滚雪球和数据库搜索）。搜索方法的准确性已在提取相关研究和在补充文件中收集全面而完整的信息方面进行了分析。在搜索方法中，已经定义了定性标准，以在所有搜索空间中选择质量最高，最相关的研究。此外，已经使用正在研究的领域中的重要关键字创建了一些查询，以便找到与云代理领域有关的研究。在1928个提取的搜索空间中，已基于定义的质量标准选择了171个搜索空间。然后，