| Vol-2933 urn:nbn:de:0074-2933-9 Copyright © 2021 for the individual papers by the papers' authors. Copyright © 2021 for the volume as a collection by its editors. This volume and its papers are published under the Creative Commons License Attribution 4.0 International (CC BY 4.0).

# ISGT 2021
Information Systems and Grid Technologies

### Proceedings of the Information Systems and Grid Technologies

### ONLINE, May 28 – 29, 2021.

Edited by

### Vladimir Dimitrov *
Vasil Georgiev *

* University of Sofia, Faculty of Mathematics and Informatics, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria

## Table of Contents

- Preface 1-6
  Editors

- Ethical Design for Trustworthy Solutions: An Introduction to the Course (short paper) 1-8
  Ioannis Patias, Vasil Georgiev
- Performing Computer Science Examinations in a Fully Online Environment 9-21
  Atanas Semerdzhiev, Dimitar Dimitrov, Nora Angelova, Petar Armyanov, Trifon Trifonov, Kalin Georgiev
- Students' Attitudes toward Personal and Learning Data Usage in Aptitude Project Learner Taxonomy (short paper) 22-30
  Adelina Aleksieva-Petrova
- iRobot Robots for Education 31-40
  Vladimir Dimitrov
- Using Open Data for Social Sciences (short paper) 41-49
  Akio Yoshida
- Optimization of the Process of Adoption of Innovations in the IT Sector: What is the Right Time to Invest in IT Equipment? 50-62
  George Popov, Antoaneta Popova
- Applications of Unit Tests in Computer Science and Software Engineering Education 63-77
  Atanas Semerdzhiev, Petar Armyanov, Trifon Trifonov, Kalin Georgiev
- On the Efficient Parallel Computing of Long Term Reliable Trajectories for the Lorenz System 78-88
  Ivan Hristov, Radoslava Hristova, Stefka Dimova, Peter Armyanov, Nikolay Shegunov, Igor Puzynin, Taisia Puzynina, Zarif Sharipov, Zafar Tukhliev
- Testing Robotic Systems: Case Study (short paper) 89-96
  Nikola Totev
- Introducing Software Quality Maturity Models in Software Engineering Education and Small Organizations 97-113
  George Sharkov, Maya Stoeva
- Marketing Case: Effect of Advertising and Quality of the Goods on the Amount of Sales (short paper) 114-121
  George Popov, Antoaneta Popova
- Comparison of the Effectiveness of Various Algorithms on a Recommendation System (short paper) 122-130
  Gulnara Bektemyssova, Yerassyl Akhmer
- Medical Students’ Views on M-Health Applications and Devices (short paper) 131-137
  Nikoleta Leventi, Alexandrina Vodenitcharova, Kristina Popova, Antoniya Yanakieva
- Medical Causation in Defining Emotions (short paper) 138-143
  Gulnara Bektemyssova, Aidos Sabdemov
- Implementation of an Ontology-Based Decision Support System for Dietary Recommendations for Diabetes Mellitus 144-154
  Maria Nisheva-Pavlova, Stoyan Hadzhiyski, Iliyan Mihaylov, Dimitar Vassilev
- Addressing Data Quality in Healthcare (short paper) 155-164
  Kalinka Kaloyanova, Ina Naydenova, Zlatinka Kovacheva
- Cross4all Project Model of Integration of Healthcare Data Using the Concepts of EHR and PHR in the Era of IoT 165-177
  Andrijana Bocevska, Snezana Savoska, Blagoj Ristevski, Natasha Blazheska-Tabakovska, Ilija Jolevski, Vladimir Trajkovik
- Implementation of Cloud-Based Personal Health Record Integrated with IoMT 178-188
  Natasha Blazheska-Tabakovska, Andrijana Bocevska, Ilija Jolevski, Blagoj Ristevski, Nikolaos Beredimas, Vassilis Kilintzis, Nicos Maglaveras, Snezana Savoska
- Blockchain in the Logistics of Health Technologies 189-202
  Svetlin Georgiev, Stamatios Priftis, Evgeni Grigorov
- Environmental Data as Еxposome and Оpportunity of Combining with Cloud-Based Personal Health Records 203-219
  Marija Radezova Trifunovska, Ilija Jolevski, Blagoj Ristevski, Snezana Savoska
- Using Machine Learning to Predict Bone Mineral Density from Dual-energy X-ray Absorptiometry Images of the Lumbar Spine (short paper) 220-226
  Nikola Kirilov, Elena Kirilova, Evgeniy Krastev
- The Right to Erasure and its Implication on AAL Systems (short paper) 227-235
  Kristin Aleksandrova
- Semantic Interoperability Issues in the Master’s Curriculum in AI at Sofia University (short paper) 236-243
  Maria Nisheva-Pavlova
- R&D Ecosystems Success Factors 244-255
  Ioannis Patias, Vasil Georgiev
- Prototyping Data Management Model and Tasks (short paper) 256-264
  Kalinka Kaloyanova, Ioannis Patias, Boris Robev
- Extended Security Analysis of the Zaslavsky Maps Based Pseudorandom Byte Generator (short paper) 265-269
  Borislav Stoyanov, Tsvetelina Ivanova, Mihaela Todorova, Miroslav Cholakov, Hyudyaim Ahmed
- Supplier Cybersecurity Risk Assessment Methodology 270-281
  Albena Tzoneva, Borislav Stoyanov
- Classification of Software Security Tools 282-292
  Aleksandar Dimov, Vladimir Dimitrov
- Adapted SANS Cybersecurity Policies for NIST Cybersecurity Framework (short paper) 293-301
  Vladimir Dimitrov, Kalinka Kaloyanova, Milen Petrov
- CPE Ontology 302-313
  Vladimir Dimitrov
- Android Password Managers and Vault Applications: An Investigation on Data Remanence in Main Memory 314-328
  Peter Sabev, Milen Petrov
- Hybrid Exercising for Cyber-Resilient Healthcare and Cross-Sector Crisis Response Operability 329-255
  George Sharkov, Christina Todorova, Georgi Koykov, Georgi Zahariev
- Building An Ontology For CWE From The Point Of View Of An Architectural Concept (short paper) 352-358
  Zhanar Sartabanova, Vladimir Dimitrov, Saule Sarsimbaeva, Gulmira Urdabayeva
- CPE Ontology Generator (short paper) 359-366
  Vladimir Dimitrov

2021-08-08: submitted by Vladimir Dimitrov, metadata incl. bibliographic data published under Creative Commons CC0
2021-08-19: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|