Fen Bilimleri Enstitüsü

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Browsing Fen Bilimleri Enstitüsü by Author "51704"

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    Citation Count: Layth Nabeel Alrawi (2019). Investigating end user errors in oil and gas critical control systems / Petrol ve gaz kritik sistemlerinde son kullanıcı hatalarının araştırılması. Yayımlanmış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen bilimleri Enstitüsü.
    Investigating end user errors in oil and gas critical control systems
    (2019) Alrawi, Layth Nabeel; 51704; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    System availability and efficiency are critical aspects in the oil and gas sector; as any fault affecting those systems may cause operations to shut down; which will negatively impact operation resources as well as costs, human resources and time. Therefore, it became important to investigate the reasons of such errors. In this study, software errors and maintenance are studied. End user errors are targeted after finding that is the number of these errors is projected to increase. The factors that affect end user behavior in oil and gas systems are also investigated and the relation between system availability and end user behavior are evaluated. An investigation has been performed following the descriptive methodology in order to gain insights into the human error factor encountered by various international oil and gas companies around the Middle East and North Africa. This was conducted by distributing a questionnaire to 120 employees of the companies in this study; 81 had responded. The questionnaire contained questions related to software/hardware errors and errors due to the end user. In short, the study shows that there is a relation between end user behavior and system availability and efficiency. Factors including training, experience, education, work shifts, system interface and I/O devices were identified in the study as factors affecting end user behavior. Moreover, the study contributes new knowledge by identifying a new factor that leads to system unavailability, namely memory sticks. This thesis presents a valuable knowledge that explains how errors occur and the reasons for their occurrence. Major limitations of this research include company policies, legal issues and information resources. Keywords: Software errors, Faults, Failure, Oil and gas, Human error, Human mistake, End user error, Copy-paste error, Torque turn system, Tubular running services, Casing Running tools, Critical control systems, casing and tubing