The paper titled “Service Selection of Ensuring Transactional Reliability and QoS for Web Service Composition” [1], published in Mathematical Problems in Engineering, has been retracted as it is found to contain a substantial amount of material, without referencing, from the following published articles:(i)Joyce El Haddad, Maude Manouvrier, Marta Rukoz: TQoS: Transactional and QoS-Aware Selection Algorithm for Automatic Web Service Composition. IEEE T. Services Computing 3(1): 73–85 (2010).(ii)Joyce El Haddad, Maude Manouvrier, Guillermo Ramirez, Marta Rukoz: QoS-Driven Selection of Web Services for Transactional Composition. ICWS 2008: 653–660.