Browsing by Author "Yel, İbrahim"

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Citation - WoS: 1
Citation - Scopus: 5
An Application on the Use of Fuzzy Multi Criteria Decision Making Methods for Software Project Development Process Selection
(Gazi Univ, Fac Engineering Architecture, 2023) Yel, İbrahim; Baysal, Mehmet Emin
Software development projects are difficult to manage, as they involve complex business stages and the resources used are made up of real people. Along with the specifications of the projects, organizational variables and the competencies of the team members are among the factors that will directly affect the success of the project. It is thought that the success of software development projects will increase with the use of these three factors in the solution of the software development process method selection problem. In the management of software projects, different process methods are used, including Agile and Waterfall (Traditional) Methods. It is important to assign development teams to projects according to their abilities and to rank the projects among themselves. As a first step in this study, the weights of the criteria were determined using the fuzzy AHP. Then fuzzy WASPAS, fuzzy EDAS and Interval Neutrosophic Z Numbers (NZN) methods were used to rank projects and employees. According to the results of this research with sensitivity analysis, it has been determined that if the software development method decision is implemented, the number of defects and their solutions can be improved by 4.2%-6%, 5.8%-7.3% and 6.8%-9.7% when compared to the actual values of person-day values.
Citation - WoS: 1
Citation - Scopus: 3
Determination of Competencies With Fuzzy Multi-Criteria Decision Making Methods for Determining the Development Program for Analyst Position in a Participation Bank
(Springer Science and Business Media Deutschland GmbH, 2022) Yel, İbrahim; Sarucan, Ahmet; Baysal, Mehmet Emin
The management and training of human resources continues to increase in importance when considering the effects such as the increase in the demand for human resources in the field of information technologies during the pandemic process. Determining the competencies of the information technology personnel and developing the deficient ones according to the competencies can be considered as the main development policy. Based on this requirement, the problem of determining the competencies of system analysts at Kuveyt Türk Participation Bank is the main subject of this study. Within the scope of the study, a survey was conducted with the participation of 11 people with at least five years of experience in the analyst position on 24 core competencies. In line with the survey results, the importance weights of the competencies were determined with fuzzy AHP. Afterwards, 10 competencies with the highest weight among 24 core competencies were determined. Evaluations were made by five experts for system analysts working in an organization in the bank for the determined 10 competencies. Rankings of system analysts were made using Neutrosophic Z-Number sets (NZN) and Fuzzy EDAS methods. These rankings became an input to the competency development program that is planned to be prepared specifically for individuals. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
Process Improvement for Error Records in a Financial Institution With the Analysis of Simulation on Using Value Stream Mapping
(2022) Yel, İbrahim; Engin, Orhan
Value stream mapping is an important tool used in process improvement in many industries. In this study, the error records opened by the end-users to the developers who developed the screens over the software development process in the Information Technologies (IT) group of a financial institution operating in the field of participation banking were examined. This paper has been addressed in order to reduce the operational risks that may arise during the resolution of the error records encountered during the use of the software. In financial institutions, customer satisfaction is closely related to the continuity of operational processes in financial transactions. First, the authors draw the current value stream map base on the approval and solution process adventure of these error records were handled in the processing logic, analyzed and a value stream map was drawn for the current situation. Then, based on the information obtained from the current situation, approval flow of the error records is simulated with the Arena simulation program. The obtained simulation results were discussed with the stakeholders of the error resolution process. Bottleneck activities have been identified through the current situation simulation outputs. A new value stream map has been prepared, based on the seven wasteful milestones defined in the lean production philosophy. Finally, the working style of the new situation developed was adapted to the process, remodeled on the Arena software and the new model was analyzed. The simulation results showed that the error/help call records decreased by 79.8% in the in-process return volume.