1. Ivan Luković, University of Novi Sad, Faculty of Technical Sciences & University of Montenegro, Faculty of Science, Podgorica 9th Workshop JCSE Neum, 30. 8 – 6. 9. 2009.JCSE W-2009 / Ivan Luković Experiences in Teaching Data Warehouse Systems within the Computer Science and Software Engineering Curriculum

2. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.2 / 24 Agenda Scope and Prerequisites Goals and Plan Results Experiences

3. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.3 / 24 Scope and Prerequisites Faculty of Technical Sciences –Department of Computing and Control –Curriculum Computing and Control Module: Computer Science and Informatics accredited bologna program, type: 4 + 1 –Course Data Warehouse Systems (DW Systems, for short) I semester of Master Curriculum (actually, IX semester) 3+2, 5 ECTS –elective course –the first performance: 2008/2009

4. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.4 / 24 Scope and Prerequisites Curriculum –general background (fundamentals) mathematics, physics, electrical engineering, electronics, theory of systems, automation and control systems "strong", and "classical" approach a wide room reserved for such courses –constant organizational intention and "pressure" to extend it –Computer Science and SE fundamentals computer architecture, operating systems, computer networks, algorithms, programming techniques and paradigms, databases, computer graphics, software engineering, information systems, etc.

5. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.5 / 24 Scope and Prerequisites Curriculum –closely related courses Software Modeling –VI semester, mandatory Software Design –VII semester, mandatory Databases –VII semester, mandatory Information Systems –VIII semester, elective Data Mining –IX semester, elective

6. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.6 / 24 Scope and Prerequisites Implementation aspects –lack of real knowledge / awareness about organization system theory management of organization systems ERP, CRM, HR, financial management, etc. project management business process modeling and WfMS quality assurance in organization systems performance measurement and analysis of organization processes

7. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.7 / 24 Scope and Prerequisites Implementation aspects –prior students' experiences approximately a half of students are already employed or contracted for a job most of them believe that they "perfectly know" in advance –what knowledge they will need in software industry –what are the real circumstances in software industry –what will be the real circumstances in the future most of them believe that –they are very good in database design, but –information system design is an easy and intuitive job they are usually strong and confident in their belief, but –the reality is much different from their belief, and –some of them are not so strong in proper completing their duties

8. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.8 / 24 Agenda Scope and Prerequisites Goals and Plan Results Experiences

9. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.9 / 24 Goals and Plan Data Warehouse Systems –Goals recognize wide variety of DW topics, and their usage domains recognize organizational, engineering (particularly SE), and technology issues in developing a DW system practice how to successfully specify and build a DW system in a given application domain become able for further self learning become able for team working –Methods ex-cathedra, but motivating the students for a discussion group exercises practices trough a project in a selected application domain

10. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.10 / 24 Goals and Plan Data Warehouse Systems –Topics Fundamentals of DW, classifications and terminology Planning, requirements and development of DW systems Types and structures of database schemas for DW systems Data management and ETL process in DW systems Data aggregation in DW systems Physical data organization in DW systems Fundamentals of Business Intelligence, Data Mining and On- Line Analytical Processing (OLAP) OLAP functions and queries over a DW

11. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.11 / 24 Goals and Plan Data Warehouse Systems –Score system Ex1Ex2Proj1Test1Atnd.  Fin.Ex.  Max. 10 30155707030100 Adv. Min. 66158540151555 PointsGrade 55 – 646 65 – 747 75 – 848 85 – 949 95 – 10010

12. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.12 / 24 Goals and Plan Data Warehouse Systems –Score system Min. 30 points required from in-term requirements Min. 55 points required to pass the whole exam Final Exam, as any other requirement, is not mandatory

13. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.13 / 24 Agenda Scope and Prerequisites Goals and Plan Results Experiences

14. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.14 / 24 Results Obtained from one year course performance No. of students: 54 –No. of students that are selected Data Mining course at the same time: 24 Attendance and initial requirements Lesson attendance (average)83.18% Excercise attendance (average)96.38% Total attendance (average)89.78% Students with attendance  80% (47 / 54) 87.04% Students with  30 pts from in-term reqirements 100.00%

15. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.15 / 24 Results Performance Avg. No. of pts from in-term excercises46.37 / 5092.74% Avg. No. of pts from test (theoretical knwldg.)9.15 / 1561.00% Avg. No. of pts from final exam ("theoretical")19.56 / 3065.20% No. of students passed till today45 / 5483.33% No. of students passed without final exam12 / 4526.67% Average No. of points76.0976.09% Average final grade8.2282.20%

16. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.16 / 24 Results Performance –"extremes" (10, 9) vs. (6, 7) are significant

17. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.17 / 24 Agenda Scope and Prerequisites Goals and Plan Results Experiences

18. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.18 / 24 Experiences General –there are always well-motivated students ready to learn something new and useful ready to communicate well ready to complete all the tasks in time –sometimes, a lack of discipline a culture of proper exercise attendance is present, but problems with lessons attendance –lesson attendance of 83.18% gives a false picture –in some cases, it is just fighting for points and nothing more

19. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.19 / 24 Experiences Students' comments –positive everything is ok, nice to learn something new, etc. –in our circumstances, if something is performed in a proper way, it is not commented at all, because it is ok! a very good experience with a student spending before a couple of months in Wien, Austria –working on SAP system, in a large-scale company –with excellent performance in her studies –with perfect perceiving of motivation factors for DW a remarkable experience with self-motivated students –with excellent or very good performance in their studies

20. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.20 / 24 Experiences Students' comments –negative We don't need such kind of knowledge in practice! Why do you force us to learn something that we really don't need in practice? The DW knowledge is applicable only in large-scale projects, and even we don't have such projects in Serbia! May be, DW projects will be present in Serbia in a far future! We need a practice, why do you force us to learn theory about DW? Everything can be learned easily trough projects only! Why theory?

21. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.21 / 24 Experiences Students' comments –Unfortunately, very false pictures are perceived DW systems are not necessarily large-scale –there is a plenty of "small" problems that may be resolved by means of DW approach every day emerging opportunities for DW projects in Serbia and the region, and even more in EU –new software companies come with primary business interests in DW systems a balance between theory and practice is a must in CS and SE –software and system development is not an easy job; –requires a theoretical knowledge and the abstraction principle if you think that you don't need some knowledge, it doesn't mean that you really don't need it

22. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.22 / 24 Experiences Some issues –problems with perceiving a real importance of the topics and problems discussed throughout the course in an industry practice there is a noticeable difference between students having and not having and industry experience –it seems that students mostly recognize as the important only the knowledge necessary for their first working years they primarily think how to target their first jobs they sometimes do not perceive that they must survive and be competitive on market for 40 years, not only for the first 5

23. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.23 / 24 Experiences Some issues –a whole picture about the DW knowledge is "assembled" at the end of the course, or even latter a significant raising of students' motivation at the very end of the course –a problem of having false pictures may be seen as a consequence of constrained life experience combined with bad economical situation for many years a lack of culture that "naturally" imposes respecting the organizational rules weak recognition of the importance of knowledge about system organization and management in the course of engineering

24. JCSE W-2009 / Ivan LukovićNeum, 30. 8 – 6. 9. 2009.24 / 24 Experiences What we may / should do locally? – better profile CS and SE curriculum with a special care to the selection and design of fundamental courses more oriented towards body of knowledge in CS and SE more flexible and multidisciplinary oriented –create better opportunities for exchanging students between different institutions give them a chance to exchange experiences, attend other universities and meet early highly developed economies –early motivate students to better develop their capabilities for abstraction and adoption of common theoretical principles differentiate between more and less important things

25. Ivan Luković, University of Novi Sad, Faculty of Technical Sciences & University of Montenegro, Faculty of Science, Podgorica 9th Workshop JCSE Neum, 30. 8 – 6. 9. 2009.JCSE W-2009 / Ivan Luković Experiences in Teaching Data Warehouse Systems within the Computer Science and Software Engineering Curriculum