Browsing by Author "Demirörs,O."
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Conference Object Citation Count: 6Cognitive aspects of error finding on a simulation conceptual modeling notation(2008) Say, Bilge; Say,B.; Demirörs,O.; Software EngineeringThe aim of the study is to investigate and compare experimentally the error finding strategies of a notation-familiar group with degrees in computer science related fields and a domain-familiar group on a simulation conceptual modeling representation based on UML. The use of eye movement and verbal protocols together with performance data underline the differences such as error finding and reasoning between two groups. The experiment with 20 participants also reveals that the diagrammatic complexity and the degree of causal chaining are the properties of diagrams that affect understanding, reasoning and problem solving with conceptual modeling representations. In a follow-up study with 24 university students, it is seen that these properties are independent of gender. The study also emphasizes the combination of different data collection modalities, namely eye movements, verbal protocol and performance data to be effective in uncovering individual differences in human-computer interaction studies in the domain of software engineering. © 2008 IEEE.Conference Object Citation Count: 6Utilization of Three Software Size Measures for Effort Estimation in Agile World: A Case Study(Institute of Electrical and Electronics Engineers Inc., 2022) Leblebici, Özkan; Hacaloğlu, Tuna; Büber,F.; Berrak,K.; Leblebici,O.; Demirörs,O.; Information Systems EngineeringFunctional size measurement (FSM) methods, by being systematic and repeatable, are beneficial in the early phases of the software life cycle for core project management activities such as effort, cost, and schedule estimation. However, in agile projects, requirements are kept minimal in the early phases and are detailed over time as the project progresses. This situation makes it challenging to identify measurement components of FSM methods from requirements in the early phases, hence complicates applying FSM in agile projects. In addition, the existing FSM methods are not fully compatible with today's architectural styles, which are evolving into event-driven decentralized structures. In this study, we present the results of a case study to compare the effectiveness of different size measures: functional -COSMIC Function Points (CFP)-, event-based – Event Points-, and code length-based - Line of Code (LOC)- on projects that were developed with agile methods and utilized a microservice-based architecture. For this purpose, we measured the size of the project and created effort estimation models based on three methods. It is found that the event-based method estimated effort with better accuracy than the CFP and LOC-based methods. © 2022 IEEE.Conference Object Citation Count: 0Yazilim ürün hatlari için otomatik işlevsel büyüklük ölçümü yaklaşimi(CEUR-WS, 2014) Eren,Ö.; Özkan,B.; Demirörs,O.[No abstract available]