關於「飯店系統opera」標籤，搜尋引擎有相關的訊息討論：

[PDF] Oracle Hospitality OPERA Property Standard Cloud Servicewww.oracle.com › hosp-opera-property-cloud-service-2984840-zhs[PDF] Oracle Hospitality OPERA Central Sales Cloud Servicewww.oracle.com › assets › hosp-opera-sales-cloud-service-2984841-zhs飯店系統有哪些的推薦與評價，FACEBOOK、MOBIL