@inproceedings{scholars1106,
           title = {Issues with flexibility: A reason for not using online reservation systems?},
         address = {Kuala Lumpur},
          volume = {3},
            note = {cited By 5; Conference of 2010 International Symposium on Information Technology, ITSim'10 ; Conference Date: 15 June 2010 Through 17 June 2010; Conference Code:81915},
             doi = {10.1109/ITSIM.2010.5561615},
         journal = {Proceedings 2010 International Symposium on Information Technology - System Development and Application and Knowledge Society, ITSim'10},
           pages = {1076--1081},
            year = {2010},
        abstract = {In the discipline of systems engineering, the flexibility of a system is considered its ability to respond to change. However, Transaction Processing Systems (TPS) are left to be inflexible up to a certain extent to avoid non-standard operations. This leads to the dilemma that incorporation of more Functional Requirements (FR) into TPS could cause systems to become more inflexible, which in turn could affect the usage of, for instance, online airline reservation systems. We conducted a survey in order to examine the physiological, cognitive, social experiences and perceptions of a selected group of people who have booked their tickets either through travel agents or through online reservation systems. The findings indicate that flexibility has a significant impact on the perceived usability of online reservation systems, much more than functional requirements. {\^A}{\copyright} 2010 IEEE.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-78049372933&doi=10.1109\%2fITSIM.2010.5561615&partnerID=40&md5=c70df946fb62a93383d721b475d873c0},
        keywords = {Flexibility; Functional requirement; Nonfunctional requirements; Online reservation; Transaction processing systems, Information technology; Reservation systems, Cognitive systems},
            isbn = {9781424467181},
          author = {Mushtaq, A. and Sulaiman, S. and Loviscach, J.}
}