Journal of Information Security Research Nikolay Nikolov, Anton Georgiev and Toncho Papanche 12 4 2021 https://doi.org/10.6025/jisr/2021/12/4/116-122 https://www.dline.info/jisr/fulltext/v12n4/jisrv12n4_3.pdf In this work we have studied the reliability assessment of a star structured complex electronic system. The normal methods to reliability indices selection and reliability requirements determination are presented. Some specific reliability indices and basic dependences valid for reliability assessment of a star structured electronic system are presented and described.