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1 Software Engineering (SU) group Reidar Conradi et al. IDI, NTNU, May 8, 2006

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1 1 Software Engineering (SU) group Reidar Conradi et al. IDI, NTNU, May 8, 2006, Reidar Conradi, 30.jan.06

2 2 NTNU in short Established as NTH in 1905, now NTNU since 1996. Seven faculties, 53 departments. 20 000 students, 1700 scientific personnel. IME: Faculty of IT, Mathematics and Electrical Engineering. IME: five departments, incl. IDI: Dept. of Computer and Information Science. IDI: 50 teachers, 75 PhD fellows,10-12 PhD candidates and 150 master candidates per year. Over 100 taught topics. IDI: Ten research groups, incl. SU group.

3 3 SU: Who we are – what we do IDI’s software engineering group: Five faculty members: Reidar Conradi, Tor Stålhane, Letizia Jaccheri, Monica Divitini, Alf Inge Wang Five postdocs: Alan J. Munro, Ekaterina Prasolova-Førland, Parastoo Mohagheghi, Sobah Abbas Petersen, Carl-Fredrik Sørensen 14 active PhD-students, common theme: empirical sw.eng. research 30 MSc-cand. per year Research-based education: students participate in projects, project results are used in courses A dozen R&D projects, basic and industrial, in all our research fields – industry is our lab. Half of our papers are based on empirical research, and 25% are written with international co-authors.

4 4 Teachers (1): prof. Reidar Conradi Born in Oslo, 1946 MSc (1970) and PhD (1976) from NTNU At SINTEF 1972-75, later at NTNU Interests: software quality and process improvement, CBSE/COTS/OSS, distributed systems, versioning. Projects: mostly in SU group

5 5 Teachers (2): prof. Tor Stålhane Born in Skien, 1944 MSc (1970) and PhD (1988) from NTNU At SINTEF 1970-2000, prof.II at UiS since 1997, at NTNU since 1 Oct. 2000 Interests: software quality (especially safety and reliability), process improvement, industrial development, data analysis (statistics) and empirical methods Projects: SPIKE/EVISOFT, WebSys, BUCS,...

6 6 Teachers (3): prof. M. Letizia Jaccheri Born in Pisa, 1965 MSc (1988) in Pisa, PhD (1994) in Torino Politecnico di Torino 1991-97, NTNU since 1997 Interests: empirical software engineering, software architecture, OSS/COTS, software and art, software engineering education Projects: E3, INCO (past), Simula Research Lab, software engineering education, CRIT

7 7 Teachers (4): prof. Monica Divitini Born in Tirano, Italy, 1964 MSc (1991) in Milano, PhD (1999) in Aalborg University of Milano 1994-97, NTNU since 1997, first as a CAGIS postdoc 1997-99 Interests: CSCW, community-ware, mobile technology for education. Projects: CO2 Lab, MOTUS, projects with Telenor R&D, Eu projects

8 8 Teachers (5): dr. Alf Inge Wang Born in Levanger, 1970 BSc (1993) HiST, MSc (1996) NTNU, researcher at NTNU in 1996, PhD March 2001 Interests: Software architecture, agents/XML, configuration management, process modelling, XP, mobile technology for work support. Also music, football and family life. Projects (past): ESERNET (EU), CAGIS, MOWAHS Thesis: Agent-based process support

9 9 SU motivation Software essential in many important societal activities. 50-60,000 system developers in Norway – many without formal SW education. Still many challenges wrt. software quality and delivery on time and budget; cf. [US Standish report, 1995], cited in [PITAC, 1999], on projects for tailored software: –31% stopped before finish, 81 bill. $ loss/year (1% of GNP!) –53% have serious overruns (189% average), 59 bill. $/year Some challenges: –Web-systems: Manage time-to-market (TTM) vs. reliability? –Component-based development (OSS, COTS): quality, risks –Business critical systems –How do software systems evolve over time, cf. Y2K? –What is empirically known about software products and processes? –How can small companies carry out systematic improvement? –How to perform valid sw.eng. research in a university -- by student projects and having industry serving as a lab?

10 10 Research fields of SU group (1) Software Quality: reliability and safety, software process improvement, process modelling Software Architecture: CBSE with COTS/OSS, evolution Co-operative Work: learning, awareness, mobile technology, project work What is important for us: Empirical methods and studies in industry and among students, experience bases. Software engineering education: partly project-based. Tight cooperation with Simula Research Laboratory/UiO and SINTEF, 15-20 active companies, Geomatikk, Telenor R&D, Abelia/IKT-Norge etc.

11 11 Research fields of the SU group Distributed Software Eng. Software Engineering Education CBSE: COTS/OSS, Evolution, SCM Reliability, safety Co-operative work SPI, learning organisations Software quality Mobile technology Software architecture

12 12 SU research projects, part 1 Supported by NFR: 1.CAGIS-2, 1999-2002: distributed learning environments, COO lab, Ekaterina Prasolova-Førland (Divitini). 2.MOWAHS, 2001-04: mobile technologies, Carl-Fredrik Sørensen (Conradi); coop. with DB group. 3.INCO, 2001-04: incr. and comp.-based development, Parastoo Mohagheghi at Ericsson (Conradi); with Simula/UiO. 4.WebSys, 2002-05: web-systems – reliability vs. time-to-market, Sven Ziemer and Jianyun Zhou (Stålhane). 5.BUCS, 2003-06: business critical software, Jon A. Børretzen, Per T. Myhrer and Torgrim Lauritsen (Stålhane and Conradi). 6.SEVO, 2004-2007: software evolution, Anita Gupta and Odd Petter N. Slyngstad (Conradi), with Statoil-IT. 7.SPIKE, 2003-05: industrial sw process improvement, Finn Olav Bjørnson (Conradi); with Simula/UiO, SINTEF, Abelia, and 10 companies - successor of SPIQ and PROFIT. 8.EVISOFT, 2006-10, empirically-driven process improvement, Geomatikk, 10 companies, Simula, SINTEF (two PhD students). 9.NorskCOSI, 2006-2008: OSS in European companies, IKT-Norge and three companies, C.-F. Sørensen, Øyvind Hauge (Conradi).

13 13 SU research projects, part 2 IDI/NTNU-supported: Software safety, 2002-06: Siv Hilde Houmb (Stålhane). Component-based development, 2002-06: OSS survey, Jingyue Li (Conradi). Now extended, coop. with prof. Liu at BJUT in 2005-2007. CRIT: Creative methods in Education/software and art, 2003-4 (NTNU): novel educational practices, no PhD, Jaccheri at IDI w/ other dept. MOTUS, 2002-2006 (NTNU), pervasive and cooperative computing, Birgit R. Krogstie (Divitini), Telenor R&D. Supported from other sources: ESE/Empirical software engineering, 2003-06 (SU funds): open source software, Thomas Østerlie (Jaccheri). ESERNET, 2001-03 (EU): network on Experimental Software Engineering, no PhD, Fraunhofer IESE + 25 partners. Net-based cooperation learning, 2002-05 (HiNT): learning and awareness, COO lab, Glenn Munkvold (Divitini). New EU project on cooperation technology, 2006-2009: one PhD student and postdoc, Monica Divitini.

14 14 Ex. New EVISOFT project: Evidence- based Software Improvement NFR industrial R&D project, 2006-10. NTNU, SINTEF, UiO/Simula, Geomatikk. 3 PhD students (NTNU, UiO), 10 part-time researchers, 10 active companies. NFR funding: 8 mill. kr/year. Project manager: Tor Ulsund, Geomatikk. Builds on SPIQ (1996-99), PROFIT (2000-02), SPIKE (2003-2005) Help (“facilitate”) IT companies to improve, by pilot projects in each company: e.g. on cost estimation and risk analysis, UML- driven development, agile methods, component-based software engineering (CBSE) – coupled with quality/SPI efforts. Couple academia and industry: win-win in profile and effect, by action research. Empirical studies – in/across companies and with other projects General results: Method book, reports and papers, experience clusters, shared meetings and seminars

15 15 Ex. Project model in EVISOFT PlanCheck Development/implementation project Do Next company project Common projects (generalization) Company project (pilot project) Act Dissemination

16 16 Ex. Possible CBSE work topics for a company in EVISOFT project Get an overview of present products and processes? What are the new service-oriented architectures (SOA)? How to evolve old to new applications? What software components: internal, outsourced, OSS, COTS? Guidelines to help evaluate, select and integrate components? Arbitrate requirements vs. available components? Decide proper increments? Risk management in all this? What are the relevant data: size, defects, …?

17 17 Ex. Possible error analysis topics for a company in the EVISOFT project Plan: E.g. analyze trouble reports to identify frequent trouble sources and possible causes and remedies. Are different systems having different trouble profiles, e.g. related to CBSE? Do: Implement one or more remedies and follow up Check: Did it help – less defects? Act: Change process to include new remedies and disseminate results.

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