Çankaya GCRIS Standart veritabanının içerik oluşturulması ve kurulumu Research Ecosystems (https://www.researchecosystems.com) tarafından devam etmektedir. Bu süreçte gördüğünüz verilerde eksikler olabilir.

Browsing by Author "Alrawi, Layth Nabeel"

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    Master Thesis
    Investigating end user errors in oil and gas critical control systems
    (2019) Alrawi, Layth Nabeel; 51704
    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
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    Conference Object
    Survey on Interface Usability Evaluation for Oil and Gas Critical Control Systems
    (IEEE, 2021) Alrawi, Layth Nabeel; Ashour, Osama Ibraheem; Zeain, Abdulrahman
    Usability is the key to develop and improve any system as it represents the direct contact point between users and machines. The use of the critical control system in the oil and gas industry is increasing. Due to the complexity of these systems, its interface usability should be assessed and developed periodically. In this research, the attributes that affect interface usability are identified. The usability of the Torque Turns System (TTS) is evaluated since the periods of downtime is projected to increase in the field. There are some works similar to our work however none of them had collected data directly from real operators from the field. An evaluation of the torque turn system interface usability is performed using questionnaire related to common interface usability attributes including accessibility, learnability, effectiveness, memorability, efficiency, safety, cognitive load, understandability, and satisfaction. The findings indicate a potential weakness in terms of understandability and accessibility