There　is　a　need　for　suitable　approaches　to　trust　assessment　to　cover　the　problems　of　human　life.　Trust　assessment　for　the　information　communication　related　to　the　quality　of　service　(QoS).　The　server　sends　data　packets　to　the　client(s)　according　to　the　trust　assessment.　The　motivation　of　this　paper　is　designing　a　proper　approach　for　the　trust　assessment　process.　We　propose　two　methods　that　are　based　on　the　fuzzy　systems　and　genetic　algorithm.　We　compare　the　results　of　proposed　approaches　that　can　guide　to　select　the　proper　approaches.　©　2020　IEEE.