Hacaloğlu, Tuna

Profile URL
https://hdl.handle.net/20.500.14411/7244
Name Variants
Hacaloğlu,T. H.,Tuna T., Hacaloğlu T.,Hacaloğlu Hacaloglu, Tuna Tuna, Hacaloğlu Hacaloglu,T. T., Hacaloglu H., Tuna Tuna, Hacaloglu T.,Hacaloglu Hacaloğlu, Tuna Hacaloglu T.
Job Title
Doktor Öğretim Üyesi
Email Address
tuna.hacaloglu@atilim.edu.tr
Main Affiliation
Information Systems Engineering
Status
Website
ORCID ID
Scopus Author ID
56422190200
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
KHJ-3791-2024
No research topics data found.

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
0
Research Products
GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
0
Research Products
QUALITY EDUCATION4
QUALITY EDUCATION
0
Research Products
GENDER EQUALITY5
GENDER EQUALITY
0
Research Products
CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
0
Research Products
AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
0
Research Products
DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
Research Products
SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
0
Research Products
RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
CLIMATE ACTION13
CLIMATE ACTION
0
Research Products
LIFE BELOW WATER14
LIFE BELOW WATER
0
Research Products
LIFE ON LAND15
LIFE ON LAND
0
Research Products
PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
3
Research Products
Documents

27

Citations

299

h-index

9

Go to Scopus profile
Documents

15

Citations

159

Go to WoS profile
No records found in other affiliations.
Scholarly Output

28

Articles

13

Views / Downloads

19/0

Supervised MSc Theses

0

Supervised PhD Theses

0

WoS Citation Count

159

Scopus Citation Count

277

Patents

0

Projects

0

WoS Citations per Publication

5.68

Scopus Citations per Publication

9.89

Open Access Source

9

Supervised Theses

0

JournalCount
IEEE Software2
CEUR Workshop Proceedings -- Joint of the 33rd International Workshop on Software Measurement and the 18th International Conference on Software Process and Product Measurement, IWSM-MENSURA 2024 -- 30 September 2024 through 4 October 2024 -- Montreal -- 2044672
18th IFIP WG 6.11Conference on e-Business, e-Services, and e-Society (I3E) -- SEP 18-20, 2019 -- Norwegian Univ Sci & Technol, Fac Informat Technol & Elect Engn, Dept Comp, Trondheim, NORWAY1
45th Euromicro Conference on Software Engineering and Advanced Applications (SEAA) / 22nd Euromicro Conference on Digital System Design (DSD) -- AUG 28-30, 2019 -- Kallithea, GREECE1
48th Euromicro Conference on Software Engineering and Advanced Applications -- AUG 31-SEP 02, 2022 -- SPAIN1
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Scholarly Output Search Results

Now showing 1 - 10 of 28
  • Review
    Citation - WoS: 67
    Citation - Scopus: 82
    Software Test Maturity Assessment and Test Process Improvement: a Multivocal Literature Review
    (Elsevier, 2017-05) Garousi, Vahid; Felderer, Michael; Hacaloglu, Tuna
    Context: Software testing practices and processes in many companies are far from being mature and are usually conducted in ad-hoc fashions. Such immature practices lead to various negative outcomes, e.g., ineffectiveness of testing practices in detecting all the defects, and cost and schedule overruns of testing activities. To conduct test maturity assessment (TMA) and test process improvement (TPI) in a systematic manner, various TMA/TPI models and approaches have been proposed. Objective: It is important to identify the state-of-the-art and the-practice in this area to consolidate the list of all various test maturity models proposed by practitioners and researchers, the drivers of TMA/TPI, the associated challenges and the benefits and results of TMA/TPI. Our article aims to benefit the readers (both practitioners and researchers) by providing the most comprehensive survey of the area, to this date, in assessing and improving the maturity of test processes. Method: To achieve the above objective, we have performed a Multivocal Literature Review (MLR) study to find out what we know about TMA/TPI. A MLR is a form of a Systematic Literature Review (SLR) which includes the grey literature (e.g., blog posts and white papers) in addition to the published (formal) literature (e.g., journal and conference papers). We searched the academic literature using the Google Scholar and the grey literature using the regular Google search engine. Results: Our MLR and its results are based on 181 sources, 51 (29%) of which were grey literature and 130 (71%) were formally published sources. By summarizing what we know about TMA/TPI, our review identified 58 different test maturity models and a large number of sources with varying degrees of empirical evidence on this topic. We also conducted qualitative analysis (coding) to synthesize the drivers, challenges and benefits of TMA/TPI from the primary sources. Conclusion: We show that current maturity models and techniques in TMA/TPI provides reasonable advice for industry and the research community. We suggest directions for follow-up work, e.g., using the findings of this MLR in industry-academia collaborative projects and empirical evaluation of models and techniques in the area of TMA/TPI as reported in this article. (C) 2017 Elsevier B.V. All rights reserved.
  • Article
    Citation - WoS: 11
    Citation - Scopus: 13
    Exploring and Expanding Students' Success in Software Testing
    (Emerald Group Publishing Ltd, 2017-11-06) Mishra, Deepti; Ostrovska, Sofiya; Hacaloglu, Tuna
    Purpose - Testing is one of the indispensable activities in software development and is being adopted as an independent course by software engineering (SE) departments at universities worldwide. The purpose of this paper is to carry out an investigation of the performance of learners about testing, given the tendencies in the industry and motivation caused by the unavailability of similar studies in software testing field. Design/methodology/approach - This study is based on the data collected over three years (between 2012 and 2014) from students taking the software testing course. The course is included in the second year of undergraduate curriculum for the bachelor of engineering (SE). Findings - It has been observed that, from the performance perspective, automated testing outperforms structural and functional testing techniques, and that a strong correlation exists among these three approaches. Moreover, a strong programming background does help toward further success in structural and automated testing, but has no effect on functional testing. The results of different teaching styles within the course are also presented together with an analysis exploring the relationship between students' gender and success in the software testing course, revealing that there is no difference in terms of performance between male and female students in the course. Moreover, it is advisable to introduce teaching concepts one at a time because students find it difficult to grasp the ideas otherwise. Research limitations/implications - These findings are based on the analysis conducted using three years of data collected while teaching a course in testing. Obviously, there are some limitations to this study. For example, student's strength in programming is calculated using the score of C programming courses taken in previous year/semester. Such scores may not reflect their current level of programming knowledge. Furthermore, attempt was made to ensure that the exercises given for different testing techniques have similar difficulty level to guarantee that the difference in success between these testing techniques is due to the inherent complexity of the technique itself and not because of different exercises. Still, there is small probability that a certain degree of change in success may be due to the difference in the difficulty levels of the exercises. As such, it is obviously premature to consider the present results as final since there is a lack of similar type of studies, with which the authors can compare the results. Therefore, more work needs to be done in different settings to draw sound conclusions in this respect. Originality/value - Although there are few studies (see e.g. Chan et al., 2005; Garousi and Zhi, 2013; Ng et al., 2004) exploring the preference of testers over distinct software testing techniques in the industry, there appears to be no paper comparing the preferences and performances of learners in terms of different testing techniques.
  • Article
    STUDY ON CLOUD COMPUTING PERCEPTION OF TURKISH IT SECTOR
    (Univ Osijek, Tech Fac, 2016) Okan, Aylin Akca; Hacaloglu, Tuna; Yazici, Ali
    In this paper an empirical study was carried out to study the Cloud Computing (CC) perception in Turkey. To this extent this study intends to determine the perception of Information Technology decision makers such as Chief Executive Officers and Chief Information Officers by means of a survey by questionnaire approach to explore 98 both public and private IT executives' understandings and concerns about CC. The survey aims to determine how CC is perceived by public or private organizations that are already involved in the e-transformation process. Major results of the study are as follows: both public and private sector executives have positive perception over adoption of CC, participants think that especially web, e-mail, data storage and process management applications are adequate for CC. Lack of well-educated and experienced staff is found to be the common barrier on adopting CC by both public and private sector participants.
  • Article
    Study on cloud computing perception of Turkish IT sector;
    (Strojarski Facultet, 2016-02) Akca Okan,A.; Hacaloglu,T.; Yazici,A.; Okan, Aylin Akca
    In this paper an empirical study was carried out to study the Cloud Computing (CC) perception in Turkey. To this extent this study intends to determine the perception of Information Technology decision makers such as Chief Executive Officers and Chief Information Officers by means of a survey by questionnaire approach to explore 98 both public and private IT executives’ understandings and concerns about CC. The survey aims to determine how CC is perceived by public or private organizations that are already involved in the e-transformation process. Major results of the study are as follows: both public and private sector executives have positive perception over adoption of CC, participants think that especially web, e-mail, data storage and process management applications are adequate for CC. Lack of well-educated and experienced staff is found to be the common barrier on adopting CC by both public and private sector participants. © 2016, Strojarski Facultet. All rights reserved.
  • Article
    Demografik Tavsiye Sistemlerine Yönelik Bir Model
    (Bilim ve Teknoloji, 2013) Hacaloğlu, Tuna; Özkan Yıldırım, Sevgi
    İnternet kullanımının dünya çapına yayılması ve bunun sonucu olarak web içeriğindeki sürekli artış kullanıcılara onları daha çok ilgilendirecek daha kişiselleştirilmiş ürün ve servis sunma ihtiyacı doğurmuştur. Özellikle e-ticaretin de gelişmesiyle artık hemen hemen her şirket müşterilerine web üzerinden hizmet sunmaktadır. Buna bağlı olarak son yıllarda web üzerinde gezinmedeki değişiklik dikkat çekici bir hale gelmiştir. Eskiden web siteleri kullanıcılara herkese aynı olacak şekilde genel ürünler sunmaktaydı. Bunun sonucunda kullanıcılar web sitesinin kendilerine sundukları ürünler arasından bir seçim yapmak zorunda kalıyorlardı. Günümüzde ise web siteleri kullanıcılarına uyum göstermeye başladılar ve kullanıcılarının bir takım özelliklerini dikkate alarak, genel seçenekler yerine onları daha çok ilgilendiren özel seçenekler sunar hale geldiler. Web’i çok büyük bir bilgi havuzu olarak düşündüğümüzde kullanıcının kendisi için gerekli olan bilgiyi bulmak için gerekli olmayan başka bilgilerle de karşı kalabileceğini görürüz. Bilgi diye adlandırdığımız; film, TV programı, reklam, müzik, kitap, tatil alternatifleri, eğitim, ders materyalleri, blog makaleleri, mobilya, giysi, vb. gibi web de sunulan her tip üründür. Bu bağlamda tavsiye sistemlerini kullanıcıların ihtiyaçlarına göre ürün veya servis öneren sistem olarak tanımlayabiliriz [1]. Bu tür tavsiye sistemlerinin dikkate aldıkları kullanıcı özellikleri kullanıcıların yaş, eğitim, cinsiyet, meslek ve yaşadıkları şehir gibi genellikle sabit olan demografik bilgileri olabilirken; kullanıcıların sistemle etkileşimleri geçmişte aldıkları, inceledikleri ürünler, gezindikleri web siteleri gibi dinamik veriler de olabilir. Bunun yanında söz konusu kullanıcılarla benzer özellik gösteren diğer kullanıcılar veya aynı kullanıcının daha önce almış olduğu ürün ile diğer ürünler arasındaki benzerlikler hep tavsiye sistemlerinin temelinde çalışan bir takım akıllı algoritmalar ile tespit edilmekte ve bu sayede kullanıcılara daha özel ve onları ilgilendirecek ürünler sunulmaktadır. Dolayısıyla bu sistemler hem tüketici hem de üretici için fayda sağlamaktadır.
  • Article
    Citation - WoS: 12
    Citation - Scopus: 13
    Assessing Team Work in Engineering Projects
    (Tempus Publications, 2015) Mishra, Deepti; Ostrovska, Sofiya; Hacaloglu, Tuna; Mathematics; Computer Engineering; Information Systems Engineering
    Team work is considered a valuable teaching technique in higher education. However, the assessment of an individual's work in teams has proved to be a challenging task. Consequently, self-and peer-evaluations are becoming increasingly popular for the assessment of individuals in a team work, though it is essential to determine whether students can judge their own as well as their peer's performance effectively. Self-and peer-evaluations have been applied in different disciplines and their authenticity with regard to teacher's assessment has been evaluated in the literature but this issue has not been investigated in the field of engineering education so far. In this study, a peer-and self-assessment procedure is applied to the evaluation of a project work conducted in teams of 3 or 4 students. The participants were engineering students taking two similar courses related with database design and development. It is found that a majority of the students were unable to assess themselves as objectively as their instructor. Further, it is observed that successful students tend to under-estimate, whereas unsuccessful students tend to over-estimate, their own performance. The paper also establishes that the results of self-assessments are independent from the gender factor.
  • Conference Object
    Cosmic Light Vs Cosmic Classic Manual: Case Studies in Functional Size Measurement
    (CEUR-WS, 2020) Hacaloglu,T.; Unlu,H.; Demirors,O.; Abran,A.
    Functional size has been used in software engineering for more than 40 years. When measured early in the software development life cycle, it can serve as direct input for effort estimation. The COSMIC Functional Size Measurement (FSM) method developed by the Common Software Measurement Consortium (COSMIC) is the latest ISO-compliant functional sizing method. A streamlined manual titled ''Software Development Velocity with COSMIC Function Points'' summarizes the measurement process and shortens the learning time. The aim of this study is to compare the classic COSMIC FSM manual and this new “light” manual in terms of accuracy of the resulting FSM applied to case studies. The findings show that use of the light manual results in accurate measurement. In addition, there were no significant time differences between the two. With respect to the variations in COSMIC Function Points (CFP) values in the two case studies, they three causes were identified: the Object of Interest (OOI) concept and corresponding data groups, details regarding Functional Process Independence, and Error/Confirmation messages related to the scope of the information included in the manuals. Copyright © 2020 for this paper by its authors.
  • Conference Object
    Citation - WoS: 3
    Citation - Scopus: 5
    Users' Behavioral Strategies Toward Mobile App Problems: Fight or Flight
    (Springer international Publishing Ag, 2019) Inal, Yavuz; Hacaloglu, Tuna
    In this paper, we identify two distinct behavioral strategies for dealing with problems encountered in the use of mobile apps - fight or flight. In the fight strategy, individuals do not give up using an app when faced with a problem; rather, they experiment with different ways to cope with that problem, whereas the flight strategy refers to the user's decision to uninstall an app when they encounter a problem and/or their intention to use an alternative app. These strategies were identified from an analysis of documents, which forty-two users reported, and can be used to understand how users deal with encountered problems. The participants were asked to use a mobile app of their choice for one week and report the behavioral strategies they utilized to counter problems they experienced. According to the findings obtained from content analysis, the most reported complaints concerned the categories of interface design, functional error, feature request, and feature removal. The participants who complained about functional errors, frustrating features, and slow application speed stopped using the app (flight behavior) whereas those that were dissatisfied with the interface, a missing feature or the content of the app continued to use the app and tried to overcome the problems (fight behavior).
  • Article
    Citation - WoS: 3
    Citation - Scopus: 6
    An Exploratory Case Study Using Events as a Software Size Measure
    (Springer, 2023-04-13) Hacaloglu, Tuna; Demirors, Onur
    Software Size Measurement is a critical task in Software Development Life Cycle (SDLC). It is the primary input for effort estimation models and an important measure for project control and process improvement. There exist various size measurement methods whose successes have already been proven for traditional software architectures and application domains. Being one of them, functional size measurement (FSM) attracts specific attention due to its applicability at the early phases of SDLC. Although FSM methods were successful on the data-base centric, transaction oriented stand-alone applications, in contemporary software development projects, Agile methods are highly used, and a centralized database and a relational approach are not used as before while the requirements suffer from a lack of detail. Today's software is frequently service based, highly distributed, message-driven, scalable and has unprecedented levels of availability. In the new era, event-driven architectures are appearing as one of the emerging approaches where the 'event' concept largely replaces the 'data' concept. Considering the important place of events in contemporary architectures, we focused on approaching the software size measurement problem from the event-driven perspective. This situation guided us to explore how useful event as a size measure in comparison to data-movement based methods. The findings of our study indicates that events can be promising for measurement and should be investigated further in detail to be formalized for creating a measurement model thereby providing a replicable approach.
  • Article
    Citation - WoS: 15
    What We Know About Software Test Maturity and Test Process Improvement
    (Ieee Computer Soc, 2018-01) Garousi, Vahid; Felderer, Michael; Hacaloglu, Tuna
    [No Abstract Available]