Seventh Workshop on Software Quality Analysis, Monitoring, Improvement, and Applications SQAMIA 2018 Zoran Budimac University of Novi Sad Faculty of Sciences, Department of Mathematics and Informatics Trg Dositeja Obradovića 4 , 21 000 Novi Sad , Serbia 2018 27 30 -

2018

Proceedings Department of mathematics and informatics

Faculty of Sciences University of Novi Sad, Serbia 2018

 Volume Editor Publisher: University of Novi Sad, Faculty of Sciences, Department of mathematics and informatics Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia www.pmf.uns.ac.rs Typesetting: Doni Pracner

Papers are copyrighted c 2018 by the papers’ authors. Copying permitted only for private and academic purposes. This volume is published and copyrighted by its editors. Proceedings also appeared in ISBN 978-86-7031-473-3, Faculty of Sciences, University of Novi Sad. The contents of the published papers express the opinions of their respective authors, not the volume publisher or the editors.

Typeset in LATEX and Microsoft Word by Doni Pracner and the authors of individual papers.

ISBN: 978-86-7031-473-3

Preface

This volume contains papers presented at the Seventh Workshop on Software Quality Analysis, Monitoring, Improvement, and Applications (SQAMIA 2018). SQAMIA 2018 was held during August 27 – 30, 2018., at the Department of

mathematics and Informatics, Faculty of Science, University of Novi Sad, Serbia.

 SQAMIA 2018 continued the tradition of successful SQAMIA workshops pre

viously held in Novi Sad, Serbia (in 2012 and 2013), Lovran, Croatia (2014),

 Maribor, Slovenia (2015), Budapest, Hungary (2016) and Belgrade, Serbia (2017). The first SQAMIA workshop was organized within the 5th Balkan Conference in Informatics (BCI 2012). In 2013, SQAMIA became a standalone event intended

to be an annual gathering of researchers and practitioners in the field of software quality.

The main objective of the SQAMIA series of workshops is to provide a forum for presentation, discussion and dissemination of the latest scientific achievements in the area of software quality, and to promote and improve interaction and collaboration among scientists and young researchers from the region and beyond. The workshop especially welcomes position papers, papers describing work in progress, tool demonstration papers, technical reports, and papers designed to provoke debate on present knowledge, open questions, and future research trends in software quality.

 The SQAMIA 2018 workshop consisted of regular sessions with technical contri

butions reviewed and selected by an international program committee, as well as three invited talks by Alexandros Chatzigeorgiou, Tudor Girba and João Saraiva.

 In total 21 and one invited paper were accepted and published in this proceedings volume. All published papers were at least double reviewed, and in some cases even quadruple reviewed. We are grateful to all PC members for submitting careful and timely opinions on the papers. Our special thanks are also addressed to the members of the SQAMIA Initia

tive (sqamia.org) without who this and previous workshops could not be possible:

 Zoran Budimac (Novi Sad, Serbia), Tihana Galinac Grbac (Rijeka, Croatia), Mar

jan Heričko (Maribor, Slovenia), Zoltán Horváth (Budapest, Hungary) and Hannu

 Jaakkola (Pori, Finland) We extend special thanks to the SQAMIA 2018 Organizing Committee from

the Department of Mathematics and Informatics, Faculty of Sciences, University of Novi Sad, especially to the two co-chairs Nataša Sukur and Tijana Vislavski for their hard work and dedication to make this workshop the best it can be. Further we’d like to thank Doni Pracner for his patience and diligent work on making the proceedings.

 And last, but not least, we thank all the participants of SQAMIA 2018 for their contributions that made all the work that went into SQAMIA 2018 worthwhile. August 2018

Zoran Budimac Workshop Organization

 General and Program Chair

Zoran Budimac (University of Novi Sad, Serbia)

 Program Committee Additional Reviewers Cristiana Areias Organizing Committee

Nataša Sukur (co-chair, University of Novi Sad, Serbia) Tijana Vislavski (co-chair, University of Novi Sad, Serbia) Doni Pracner (University of Novi Sad, Serbia) Ivan Pribela (University of Novi Sad, Serbia) Dušica Knežević (University of Novi Sad, Serbia)

 Organizing Institution University of Novi Sad, Serbia Faculty of Sciences Department of Mathematics and Informatics Technical Editor

Doni Pracner (University of Novi Sad, Serbia) ◦ Impact of Code Smells on the Rate of Defects in Software: A Literature Review . . . . . . . . . . . . 3:1– 3:10

Mitja Gradišnik, Marjan Heričko ◦ Lessons Learned from Developing Prototypes for Customer Complaint Validation . . . . . . . . . . . 4:1– 4:8

Jere Grönman, Petri Rantanen, Mika Saari, Pekka Sillberg, Hannu Jaakkola ◦ Using Games to Understand and Create Randomness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5:1– 5:9

Jaak Henno, Hannu Jaakkola, Jukka Mäkelä ◦ Usability and Quality Parameters for E-Learning Environments and Systems . . . . . . . . . . . . . . . . 6:1– 6:11 Mirjana Ivanović, Aleksandra Klašnja Milićević, Maria Ganzha, Amelia Bădică, Marcin Paprzycki, Costin Bădică ◦ Expanding on the Process Perspective in Software Process Improvement Practices . . . . . . . . . . 7:1– 7:8

Harri Keto, Jari Palomäki, Hannu Jaakkola ◦ Reducing Combinatorial Testing Requirements Based on Equivalences with Respect to the Code Under Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8:1– 8:7 Sarfraz Khurshid, Darko Marinov ◦ Quantitative Quality Analysis of Scientific Software – Case Study . . . . . . . . . . . . . . . . . . . . . . . . . . . 9:1– 9:8

Bojana Koteska, Monika Simjanoska, Anastas Mishev ◦ Utilize Syntax Tree Transformations as a C/C++ Test Seam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10:1–10:8

Gábor Márton, Zoltán Porkoláb ◦ Using Threshold Derivation of Software Metrics for Building Classifiers in Defect Prediction 11:1–11:9

Marino Mohović, Goran Mauša, Tihana Galinac Grbac ◦ Read-Copy-Update as a Possible Locking Strategy in Scala . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12:1–12:8

Gergely Nagy, Zoltán Porkoláb ◦ The Use of the Software Metrics in Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13:1–13:7

Luka Pavlič, Mojca Okorn, Marjan Heričko ◦ Process Quality Monitoring and Optimization: A Case Study for a Smart City Health Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14:1–14:9 Maja Pušnik, Boštjan Šumak, Marjan Heričko, Gordana Rakić, Zoran Budimac ◦ Risk Analysis Tools for Managing Software Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16:1–16:10

Nevena Ranković, Mirjana Ivanović ◦ A Case-Control Study on the Server-Side Bandages Against XSS . . . . . . . . . . . . . . . . . . . . . . . . . . 17:1–17:8

Jukka Ruohonen, Ville Leppänen ◦ Evaluating Fitness Functions for Automated Code Transformations . . . . . . . . . . . . . . . . . . . . . . . . 18:1–18:8

Nataša Sukur, Doni Pracner ◦ Predicting Reliability Changes Using Object Oriented Metrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19:1–19:8

Paul T, irban ◦ Code Clone Benchmarks Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20:1–20:10

Tijana Vislavski, Gordana Rakić ◦ Establishing Software Product Lines from Existing Products Based on Feature Model Recovery and Merging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21:1–21:8 Valentino Vranić, Michal Granec ◦ Replication of Quantitative Analysis of Fault Distributions on Open Source Complex Software Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22:1–22:9 Ana Vranković, Tihana Galinac Grbac