Team Member

Dr. Elmar Juergens

… is founder of CQSE GmbH and consultant for software quality. He studied computer science at the Technische Universität München and Universidad Carlos III de Madrid and received a PhD in software engineering.

  • +49 space::179 space::675 space::3863
  • juergens@invalid::cqse.eu
  • @ElmarJuergens

Blog Posts

Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Juergens
  • Konferenz: Objektforum
  • Datum: Montag, 01. Juli 2019, 19:00 Uhr
  • Ort: Literaturhaus München (in der Bibliothek, 1. OG)

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: Code Days 2019
  • Datum: Mittwoch, 23. Januar 2019, 11:00 - 11:45 Uhr
  • Ort: ICM – Internationales Congress Center München

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: Software-QS-Tag
  • Datum: Freitag, 19. Oktober 2018, 09:55 - 10:40 Uhr
  • Ort: Sheraton Frankfurt Airport, Raum Congress Center B

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Coordinates

  • Speaker: Elmar Jürgens
  • Conference: Accelerate
  • Date: Tuesday, October 9th 2018, 15:45 — 16:10
  • Venue: Austria Center Vienna, Keynote Room F

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: SWA-MUC
  • Datum: Mittwoch, 18. Juli 2018, 18:30 - 22:00 Uhr
  • Ort: TNG Technology Consulting GmbH, Arabellastraße, München

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: JFS
  • Datum: Donnerstag, 5. Juli 2018, 14:30 - 15:15 Uhr
  • Ort: Kongresszentrum Stuttgart, Silchersaal

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens, Dennis Pagano
  • Konferenz: QS-Tag
  • Datum: Donnerstag, 19. Oktober 2017, 11:40 - 12:25 Uhr
  • Ort: Sheraton Frankfurt Airport Hotel and Conference Center

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: SE Live
  • Datum: Donnerstag, 06. Juli 2017, 08:45 - 09:30 Uhr
  • Ort: Kultur- & Kongresszentrum Liederhalle Stuttgart

.

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: SE Live
  • Datum: Freitag, 12. Mai 2017, 09:30 - 10:00 Uhr
  • Ort: Hotel am Badersee.

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Coordinates

  • Speaker: Elmar Jürgens
  • Venue: GOTO Berlin
  • Date: Tuesday, 15th of November 2016, 15:00 - 15:50 Uhr
  • Location: bcc, Berlin Alexanderplatz

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: QS-Tag 2016
  • Datum: Donnerstag, 03. November 2016, 11:35 - 12:20 Uhr
  • Ort: Sheraton Carlton Nürnberg

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Uwe Proft und Elmar Jürgens
  • Konferenz: SWQD 2016
  • Datum: Dienstag, 19. Januar 2016, 13:45 - 14:30 Uhr
  • Ort: Austria Trend Hotel Savoyen, Wien, Track B

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Teams, not individuals, build most software systems. The organization of these teams thus strongly impacts the software they build.

This is old news. For example, Conway’s law illustrates that the architectural decomposition of a system into components happens along communication structures [1]. Naggapan’s study on bug data from Windows Vista shows that organizational structure is a significant predictor for fault proneness [2].

These empirical results resonate with my own experience. Often, the problems our static code analyses reveal in a code base are symptoms of underlying organizational problems. The larger the organizational problems, the bigger their impact on code quality.

Unfortunately, on this level of abstraction, this insight is pretty useless, since it is too abstract to be operationalized in a project context. To make it applicable, I want to boil it down to a single aspect in this article: reuse. From my experience, it is one of the code characteristics that reveals most about collaboration between teams.

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: W-JAX 2015
  • Datum: Donnerstag, 5. November 2015, 16:30 - 17:15 Uhr
  • Ort: Sheraton Carlton Nürnberg, Raum Burggrafensaal

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: W-JAX 2015
  • Datum: Mittwoch, 4. November 2015, 10:45 - 11:45 Uhr
  • Ort: The Westin Grand München, Raum Barcelona

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Since this post accompanies a talk in German, it is written in German, too.

Koordinaten

  • Sprecher: Elmar Jürgens
  • Konferenz: W-JAX 2015
  • Datum: Dienstag, 3. November 2015, 18:00 - 19:00 Uhr
  • Ort: The Westin Grand München, Raum Garmisch

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We have had countless discussions about code clones with the teams responsible for their maintenance. These teams generally accept that some of the clones in their software are the product of copy & paste. In many cases this is obvious, since the clones share some quirks that can only be plausibly explained by copy & paste (e.g. identical typos in comments).

One hypothesis that comes up time and again, however, is that some or many of the clones were not created by copy & paste, but instead were written independently and then evolved into the same form.

Convergent Evolution

This hypothesis reminds me of convergent evolution, where environmental factors drive independent evolution of similar traits in species whose ancestors do not show those traits. For example, both pill bugs and pill millipede have evolved similar defenses, and consequently look similar, but belong to different branches of

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This post is about student internships at CQSE. If you are studying computer science and are looking for a job specifically designed to help you get the most out of your studies, read on.

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A fundamental challenge when introducing reviews is that reviewing code is hard. This post summarizes our practices to nevertheless make life for a reviewer as easy as possible.

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Reviews point out problems in somebody’s work. Unfortunately, both giving and receiving criticism can be hard. To successfully introduce reviews, we must overcome this resistance. Since finding (and later removing) problems is the primary goal of reviews, this challenge is inherent—no review process can avoid it. We can, however, make receiving review results much easier. This post describes two simple but effective practices we use in our code reviews.

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The primary purpose of automated tests is to reveal regression bugs. But how can we tell how well a test suite does this? Code coverage measurement is often used to assess tests in practice. But what does it really tell? We analyzed a set of open-source projects to find out and came up with a clear answer. This post summarizes our findings.

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Talks

Elmar Juergens:

Best Pracitces aus vier Jahren Umgang mit technischen Schulden bei der medatixx.

Talk at OOP 2018, 2018.

[BibTeX]
Elmar Juergens:

Gestern lief’s doch noch. Muss ich heute schon wieder alles testen? Forschungsergebnisse und eigene Erfahrungen mit Test-Impact-Analyse.

Talk at Java Forum Stuttgart 2018, 2018.

[Slides] [BibTeX]
Elmar Juergens:

Immer kürzere Testphasen? Mit Ticket Coverage erkennen, welche wichtigen Features ungetestet sind.

Talk at SWQD 2018, 2018.

[BibTeX]
Elmar Juergens:

Test Intelligence?

Keynote Embedded Testing / Clean Code Days 2018, 2018.

[Slides] [BibTeX]
Elmar Juergens:

Faktenbasiertes Debuggen von Software-Teams.

Talk at Java Forum Stuttgart 2017, 2017.

[BibTeX]
Elmar Juergens, Dennis Pagano:

Haben wir das Richtige getestet? Erfahrungen mit Test-Gap-Analyse im Hotfix-Test, Iterationstest und Releasetest in der Praxis.

Talk at SWQD 2017, 2017.

[Slides] [BibTeX]
Elmar Juergens, Dennis Pagano:

Haben wir das Richtige getestet? Oh nein! Erfahrungen mit Test-Gap-Analyse in der Praxis.

Talk at OOP 2017, 2017.

[Slides] [BibTeX]
Elmar Juergens:

Setzen wir unsere Qualitätsanalysen wirklich sinnvoll ein?

Talk at JavaLand 2017, 2017.

[BibTeX]
Elmar Juergens:

Software Teams Debuggen.

Talk at JUG Darmstadt 2017, 2017.

[BibTeX]
Elmar Juergens:

Von Clean Code zu Clean Software.

Keynote at Clean Code Days 2017, 2017.

[BibTeX]
Elmar Juergens:

Was verraten moderne Analysen über Wechselwirkungen zwischen Architektur und Organisation? Fallbeispiele aus zehn Jahren Praxiseinsatz.

Talk at SE Live 2017, 2017.

[BibTeX]
Elmar Juergens:

Do Code Clones Matter? Hinter den Kulissen einer empirischen Studie über Code Cloning und dem daraus entstandenen Spin-Off.

Gastvorlesung Universität Passau 2016, 2016.

[BibTeX]
Elmar Juergens:

Haben wir das Richtige getestet? Erfahrungen mit Test-Gap-Analyse in der Praxis.

QS-Tag 2016, 2016.

[Slides] [BibTeX]
Elmar Juergens:

Haben wir das Richtige getestet? Erfahrungen mit Test-Gap-Analyse in der Praxis.

Meetup Software Architektur München 2016, 2016.

[BibTeX]
Elmar Juergens, Uwe Proft:

Haben wir unsere Änderungen diesmal getestet? Erfahrungen mit Test-Gap-Analyse bei der Munich Re.

Vortrag auf den Software Quality Days 2016, 2016.

[Slides] [BibTeX]
Elmar Juergens:

Krise als Chance? Wege zu wartbarer Software.

Pecha Kucha Vortrag bei "Amazing ideas and freaky challenges in software development" powered by PechaKucha @OMICRON electronics, 2016.

[Slides] [Video] [BibTeX]
Elmar Juergens:

Mining Repository Data to Debug Software Development Teams.

Goto Berlin 2016, 2016.

[Slides] [BibTeX]
Elmar Juergens:

Software Teams Debuggen Was verraten Analysen über Probleme zwischen technischer Architektur und Team-Architektur?

Gastvorlesung Universität Passau 2016, 2016.

[BibTeX]
Elmar Juergens:

Vom Wiegen allein wird die Sau nicht fett - von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Vortrag auf der GI-Regionalgruppe SE-Live, 2016.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen allein wird die Sau nicht fett - von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Vortrag auf dem IT-Leiter-Kreis Franken, 2016.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett. Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at Basta Spring 2016, 2016.

[BibTeX]
Elmar Juergens:

Was verraten moderne Analysen über Wechselwirkungen zwischen Architektur und Organisation? Fallbeispiele aus zehn Jahren Praxiseinsatz.

Talk at the Architecture Gathering 2016, 2016.

[BibTeX]
Elmar Juergens:

Aufdeckung von fundamentalen Architekturproblemen durch Cross-Project-Clone-Detection.

Talk at The Architecture Gathering 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Bewertung von Wartbarkeit: Jagdschein für Testleiter und Manager.

Talk at QS-Tag 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Fit für die Betreuung: Herausragende Studentische Abschlussarbeiten anleiten.

Vortrag im Rahmen von CeDoSIA, dem interdisziplinäre Doktorandenprogramm der Fakultät für Informatik der TUM, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Fit für die Promotion: (Miss-)Erfolgsstrategien auf dem langen Weg zur eigenen Promotion.

Vortrag im Rahmen von CeDoSIA, dem interdisziplinäre Doktorandenprogramm der Fakultät für Informatik der TUM, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Fundamentale Organisations- und Architekturprobleme durch Cross-Project Clone Detection finden.

Talk at W-JAX 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Haben wir die entscheidenden Änderungen erwischt? Risikobasiertes Testen von gewachsener Software.

Talk at W-JAX 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Haben wir unsere Änderungen eigentlich getestet? Möglichkeiten und Grenzen von Test-Gap Analyse.

Talk at Software Quality Days 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Haben wir unsere Änderungen eigentlich getestet? Möglichkeiten und Grenzen von Test-Gap-Analyse.

Talk at DWX 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens, Christian Pfaller:

Just Weighing a Pig Doesn’t Fatten it. From Quality Analysis to Enduring Quality Improvement of ABAP Code.

Talk at SAP Inside Track Munich 2015, 2015.

[Slides] [Video] [BibTeX]
Elmar Juergens:

KPIs zu Software-Qualität im Vertrag?

Talk at Agile Contracts 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Möglichkeiten und Grenzen der automatischen Analyse von Software-Architekturen – Erfahrungen aus Forschung und Praxis.

Talk at The Architecture Gathering 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Professionelle Qualitätssicherung zwischen Entwicklung und Integrationstest: Techniken, Erfahrungen, Zusammenspiel.

Talk at FRITZ Führungskreise, 2015.

[Slides] [BibTeX]
Elmar Juergens, Andreas Goeb:

Test Gap Analysis: Risk-based Testing of ABAP Applications.

Talk at SAP Inside Track Munich 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen allein wird die Sau nicht fett - von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Vortrag bei vbw, 2015.

[BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett: Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at JAX 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett: Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at SEACON 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett! Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at DWX 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett! Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at Java Forum Stuttgart 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Wann führen Qualitätsanalysen zu Qualitätsverbesserungen? Erfahrungen aus sieben Jahren Praxis.

Talk at OOP 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Was sollte ich bei der Wahl meiner Abschlussarbeit beachten?

Vortrag im Rahmen der Veranstaltung VHK-Karriere-Forum "IT + MB/Automotive", 2015.

[Slides] [BibTeX]
Elmar Juergens:

Wie gut kann man Code-Qualität wirklich messen?

Keynote at Clean Code Days 2015, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Wie wird Funktionalität in Produktlinien und Produktfamilienfamilien wiederverwendet? Erfahrungen aus der Praxis.

Gastvorlesung Universität Passau, 2015.

[Slides] [BibTeX]
Elmar Juergens:

Bewertung von Software-Qualität: Erfahrungen aus 7 Jahren Forschung und Praxiseinsatz.

Talk at Pionierbasis, Plattform Softwareentwicklung, 2014.

[Slides] [BibTeX]
Elmar Juergens, Uwe Proft:

Haben wir unsere Änderungen eigentlich getestet? Möglichkeiten und Grenzen von Test-Gap Analyse.

Talk at German Testing Night 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Haben wir unsere Änderungen eigentlich getestet? Möglichkeiten und Grenzen von Test-Gap Analyse.

Talk at OOP 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Technische Schulden: Bezahlen oder ignorieren?

Talk at Manage Agile, 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen allein wird die Sau nicht fett: Von der Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at Pionierbasis, FH Vorarlberg, 2014.

[Slides] [Video] [BibTeX]
Elmar Juergens:

Vom Wiegen allein wird die Sau nicht fett: Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at Software Quality Days 2014 (voted among best presentations of the conference), 2014.

[BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett: Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at Clean Code Days 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett: Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at QS-Tag 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Vom Wiegen wird die Sau nicht fett: Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at W-JAX 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Wann führen Qualitätsanalysen zu guter Software? Erfahrungen aus 7 Jahren Praxiseinsatz.

Talk at Entwicklertag Karlsruhe 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Wissenstransfer durch leichtgewichtige Reviews.

Talk at Clean Code Days 2014, 2014.

[Slides] [BibTeX]
Elmar Juergens:

Copy & Paste & Bug? Die überraschende Wahrheit über Klone in Software-Artefakten.

Talk at JUG-Ostfalen, 2013.

[Slides] [BibTeX]
Elmar Juergens:

Copy & Paste & Bug? Die überraschende Wahrheit über Klone in Software Artefakten.

Talk at Sofware Quality Days (SQD’2013), 2013.

[Slides] [BibTeX]
Elmar Juergens:

Copy & Paste & Bug? Software-Engineering-Erfahrungen aus der Praxis.

Gastvorlesung an der TU Braunschweig, 2013.

[Slides] [BibTeX]
Elmar Juergens:

Haben wir unsere Änderungen eigentlich getestet? Möglichkeiten und Grenzen von Test-Gap Analyse.

Talk at QS-Tag 2013, 2013.

[Slides] [BibTeX]
Elmar Juergens:

KPIs zur Bewertung von Software-Qualität: Waffenschein für Projektmanager und Entscheider.

Talk at MedConf 2013, 2013.

[Slides] [BibTeX]
Elmar Juergens:

Vom wiegen wird die Sau nicht fett – Von Qualitätsanalyse zu wirksamer Qualitätsverbesserung.

Talk at Teamconf 2013, 2013.

[Slides] [BibTeX]
Elmar Juergens:

Wann führen Code-Analysen zu guter Software? Eingeständnisse eines Analysewerkzeugbauers.

Talk at XP Days 2013, 2013.

[Slides] [Video] [BibTeX]
Elmar Juergens:

Wirksamer Einsatz Statischer Analyse in großen, langlebigen Software-Systemen.

Talk at Entwicklertag Karlsruhe 2013, 2013.

[Slides] [BibTeX]
Elmar Juergens:

Wissenstransfer durch leichtgewichtige Reviews.

Talk at IF Forum CRAFTSMANSHIP, 2013.

[Slides] [Video] [BibTeX]
Elmar Juergens:

Asynchrones Pair Programming.

Talk at Entwicklertag Karlsruhe 2012, Agile Day, 2012.

[Slides] [Video] [BibTeX]
Elmar Juergens:

Continuous Software Quality Control: Techniques, Tools & Lessons Learned in Practice.

Talk at OOP 2012, 2012.

[Slides] [BibTeX]
Elmar Juergens:

Copy & Paste & Bug? Die überraschende Wahrheit über Klone in Software Artefakten.

Talk at XP Days 2012, 2012.

[Slides] [BibTeX]
Elmar Juergens:

Copy & Paste & Bug - Erkennung von und Umgang mit Redundanz in Software Artefakten.

Talk at Herbstcampus 2012, 2012.

[Slides] [BibTeX]
Elmar Juergens:

Copy & Paste & Bug.

Talk at Entwicklertag Karlsruhe 2012, Conference Day, 2012.

[Slides] [Video] [BibTeX]
Elmar Juergens:

Effizienter Einsatz von Statischer Analyse in großen, langlebigen Software-Systemen.

Talk at Workshop on Hotspots of Software Engineering 2012, 2012.

[Slides] [BibTeX]
Elmar Juergens:

Erfolgreiche Peer-Reviews: Prozesse, Werkzeuge und Erfahrungen aus 6 Jahren kontinuierlichem Code-Review in einem heterogenen Team.

Talk at XP Days 2012, 2012.

[Slides] [BibTeX]
Elmar Juergens:

Software Quality Control: Wie stelle ich die Wartbarkeit von Code in Eigenentwicklung und Outsourcing sicher?

Talk at ALM Days 2012: Visual Studio Application Lifecycle Management Days 2012, Management Day, 2012.

[Slides] [BibTeX]
Elmar Juergens:

Feature Profiling for Evolving Systems.

Talk at International Conference on Program Comprehension (ICPC’11), 2011.

[Slides] [BibTeX]
Elmar Juergens:

Regression Test Selection of Manual System Tests in Practice.

Talk at European Conference on Software Maintenance and Reengineering (CSMR’11), 2011.

[Slides] [BibTeX]
Elmar Juergens:

Research in cloning beyond code: a first roadmap.

Talk at International Workshop on Software Clones (IWSC’11), 2011.

[Slides] [BibTeX]
Elmar Juergens:

Achieving Accurate Clone Detection Results.

Talk at International Workshop on Software Clones (IWSC’10), 2010.

[Slides] [BibTeX]
Elmar Juergens:

Can Clone Detection Support Quality Assessments of Requirements Specifications?

Talk at International Conference on Software Engineering (ICSE’10), 2010.

[Slides] [BibTeX]
Elmar Juergens:

Code similarities beyond copy & paste.

Talk at European Conference on Software Maintenance and Reengineering (CSMR’10), 2010.

[Slides] [BibTeX]
Elmar Juergens:

How much is a Clone?

Talk at International Workshop on Software Quality and Maintainability (SQM’10), 2010.

[Slides] [BibTeX]
Elmar Juergens:

Clone Detection Beyond Copy & Paste.

Talk at International Workshop on Software Clones (IWSC’09), 2009.

[Slides] [BibTeX]
Elmar Juergens:

Do Code Clones Matter?

Talk at International Conference on Software Engineering (ICSE’09), 2009.

[Slides] [BibTeX]
Elmar Juergens:

Software-Qualitätsmodelle in der Praxis: Erfahrungen mit aktivitätenbasierten Modellen.

Talk at Workshop Software-Qualitätsmodellierung und -bewertung (SQMB’08), 2008.

[BibTeX]
Elmar Juergens:

Static Bug Detection Through Analysis of Inconsistent Clones.

Talk at Workshop Testmethoden für Software - Von der Forschung in die Praxis (TeSo’08), 2008.

[Slides] [BibTeX]
Elmar Juergens:

Variability Models Must Not be Invariant!.

Talk at Workshop on Variability Modelling of Software-intensive Systems (VaMoS’07), 2007.

[Slides] [BibTeX]
Elmar Juergens:

Tool Demonstration: The Language Evolver Lever.

Talk at Workshop on Language Descriptions, Tools and Applications (LDTA’06), 2006.

[Slides] [BibTeX]

Publications

Roman Haas, Rainer Niedermayr, Elmar Juergens:

Teamscale: Tackle Technical Debt and Control the Quality of Your Software.

Proceedings of the 2nd International Conference on Technical Debt (TechDebt’19), 2019.

[Paper] [BibTeX]
Elmar Juergens, Dennis Pagano:

Erfahrungen mit Test-Gap-Analyse und Ticket Coverage in der Praxis.

OBJEKTspektrum, 2018.

[Paper] [BibTeX]
Elmar Juergens, Dennis Pagano:

Test-Impact-Analyse: Fehler früh erkennen trotz großer, langlaufender Test-Suites.

OBJEKTspektrum, 2018.

[Paper] [BibTeX]
Elmar Juergens, Dennis Pagano:

Test-Impact-Analyse: Trotz großer, langlaufender Test-Suites Fehler früh erkennen.

Whitepaper. CQSE GmbH, 2018.

[BibTeX]
Elmar Juergens, Dennis Pagano, Andreas Goeb:

Test Impact Analysis: Detecting Errors Early Despite Large, Long-Running Test Suites.

Whitepaper. CQSE GmbH, 2018.

[Paper] [BibTeX]
Florian Dreier, Elmar Juergens, Andreas Göb:

Obtaining Coverage per Test Case.

Master’s Thesis. Technische Universität München, 2017.

[Paper] [BibTeX]
Florian Dreier, Elmar Juergens, Andreas Göb:

Test Accompanying Calculation of Test Gaps for Java Applications.

Guided Research. Technische Universität München, 2017.

[Paper] [BibTeX]
Jakob Rott, Rainer Niedermayr, Elmar Juergens, Dennis Pagano:

Ticket Coverage: Putting Test Coverage into Context.

Proceedings of the 8th Workshop on Emerging Trends in Software Metrics (WETSoM’17), 2017.

[Paper] [BibTeX]
Elmar Juergens, Dennis Pagano:

Did We Test the Right Thing? Experiences with Test Gap Analysis in Practice.

Whitepaper. CQSE GmbH, 2016.

[Paper] [BibTeX]
Elmar Juergens, Dennis Pagano:

Haben wir das Richtige getestet? Erfahrungen mit Test-Gap-Analyse in der Praxis.

Whitepaper. CQSE GmbH, 2016.

[Paper] [BibTeX]
Rainer Niedermayr, Elmar Juergens, Stefan Wagner:

Will My Tests Tell Me If I Break This Code?

Proceedings of the International Workshop on Continuous Software Evolution and Delivery (CSED’16), 2016.

[Paper] [BibTeX]
Florian Dreier, Elmar Juergens, Andreas Göb:

Detection of Refactorings.

Bachelor’s Thesis. Technische Universität München, 2015.

[Paper] [BibTeX]
Timo Pawelka, Elmar Juergens:

Is This Code Written in English? A Study of the Natural Language of Comments and Identifiers in Practice.

Proceedings of the 31st International Conference on Software Maintenance and Evolution (ICSME’15), 2015.

[Paper] [BibTeX]
Maximilian Junker, Manfred Broy, Benedikt Hauptmann, Wolfgang Böhm, Henning Femmer, Sebastian Eder, Elmar Juergens, Rainer Janßen, Rudolf Vaas:

Principles and a Process for Successful Industry Cooperation – The Case of TUM and Munich Re.

2nd International Workshop on Software Engineering Research and Industrial Practice (SER&IP’15), 2015.

[Paper] [BibTeX]
Veronika Bauer, Elmar Juergens, Tobias Voelke:

A Novel Approach to Detect Unintentional Re-implementations.

The 30th International Conference Software Maintenance and Evolution (ICSME’14), 2014.

[Paper] [BibTeX]
Shane McIntosh, Martin Poehlmann, Elmar Juergens, Audris Mockus, Bram Adams, Ahmed E. Hassan, Brigitte Haupt, Christian Wagner:

Collecting and Leveraging a Benchmark of Build System Clones to Aid in Quality Assessments.

36th International Conference on Software Engineering (ICSE’14), 2014.

[Paper] [BibTeX]
Fabian Streitel, Daniela Steidl, Elmar Jürgens:

Dead Code Detection on Class Level.

Softwaretechnik-Trends, Vol. 34, 2014.

[Paper] [BibTeX]
Daniela Steidl, Benjamin Hummel, Elmar Juergens:

Incremental Origin Analysis of Source Code Files.

Proceedings of the 11th Working Conference on Mining Software Repositories (MSR’14), 2014.

[Paper] [BibTeX]
Moritz Beller, Alberto Bacchelli, Andy Zaidman, Elmar Juergens:

Modern Code Reviews in Open-Source Projects: Which Problems Do They Find/Fix?

The 11th Working Conference on Mining Software Repositories (MSR’14), 2014.

[Paper] [BibTeX]
Henning Femmer, Daniel Méndez Fernández, Elmar Juergens, Michael Klose, Ilona Zimmer, Jörg Zimmer:

Rapid Requirements Checks with Requirements Smells: Two Case Studies.

1st International Workshop on Rapid and Continous Software Engineering (RCoSE’14), 2014.

[Paper] [BibTeX]
Sebastian Eder, Benedikt Hauptmann, Maximilian Junker, Elmar Juergens, Rudolf Vaas, Karl-Heinz Prommer:

Did We Test Our Changes? Assessing Alignment between Tests and Development in Practice.

Proceedings of the Eighth International Workshop on Automation of Software Test (AST’13), 2013.

[Paper] [BibTeX]
Daniela Steidl, Benjamin Hummel, Elmar Juergens:

Quality Analysis of Source Code Comments.

Proceedings of the 21st IEEE Internation Conference on Program Comprehension (ICPC’13), 2013.

[Paper] [BibTeX]
Martin Pöhlmann, Elmar Juergens:

Revealing Missing Bug-Fixes in Code Clones in Large-Scale Code Bases.

Proceedings of the Seventh International Workshop on Software Quality and Maintainability (SQM’13), 2013.

[Paper] [BibTeX]
Veronika Bauer, Lars Heinemann, Benjamin Hummel, Elmar Juergens, Michael Conradt:

A Framework for Incremental Quality Analysis of Large Software Systems.

Proceedings of the 28th IEEE International Conference on Software Maintenance (ICSM’12), 2012.

[Paper] [Link] [BibTeX]
Benedikt Hauptmann, Maximilian Junker, Sebastian Eder, Elmar Jürgens, Rudolf Vaas:

Can clone detection support test comprehension?

Proceedings of the 20th IEEE International Conference on Program Comprehension (ICPC’12), 2012.

[Paper] [Link] [BibTeX]
Sebastian Eder, Maximilian Junker, Elmar Jürgens, Benedikt Hauptmann, Rudolf Vaas, Karl-Heinz Prommer:

How much does unused code matter for maintenance?

Proceedings of the 34th International Conference on Software Engineering (ICSE’12), 2012.

[Paper] [Link] [BibTeX]
Moritz Beller, Elmar Jürgens:

How Strict is Your Architecture?

Softwaretechnik-Trends, Vol. 32, 2012.

[Paper] [Link] [BibTeX]
Stefan Wagner, Klaus Lochmann, Sebastian Winter, Florian Deissenboeck, Elmar Juergens, Markus Herrmannsdoerfer, Lars Heinemann, Michael Kläs, Adam Trendowicz, Jens Heidrich, Reinhold Plösch, Andreas Goeb, Christian Körner, Korbinian Schoder, Christian Schubert:

The Quamoco Quality Meta-Model.

Report TUM-I128. Technische Universität München, 2012.

[BibTeX]
Daniela Steidl, Benjamin Hummel, Elmar Jürgens:

Using Network Analysis for Recommendation of Central Software Classes.

Proceedings of the 19th Working Conference on Reverse Engineering (WCRE’12), 2012.

[Paper] [Link] [BibTeX]
Nils Göde, Benjamin Hummel, Elmar Juergens:

What Clone Coverage Can Tell.

Proceedings of the 6th International Workshop on Software Clones (IWSC’12), 2012.

[Paper] [Link] [BibTeX]
Sandro Schulze, Elmar Jürgens, Janet Feigenspan:

Analyzing the Effect of Preprocessor Annotations on Code Clones.

Proceedings of the 11th IEEE International Working Conference on Source Code Analysis and Manipulation (SCAM’11), 2011.

[Paper] [Link] [BibTeX]
Elmar Jürgens, Martin Feilkas, Markus Herrmannsdoerfer, Florian Deissenboeck, Rudolf Vaas, Karl-Heinz Prommer:

Feature Profiling for Evolving Systems.

Proceedings of the 19th IEEE International Conference on Program Comprehension (ICPC’11), 2011.

[Paper] [Link] [BibTeX]
Benjamin Hummel, Elmar Jürgens, Daniela Steidl:

Index-based model clone detection.

Proceedings of the 5th ICSE International Workshop on Software Clones (IWSC’11), 2011.

[Paper] [Link] [BibTeX]
Elmar Jürgens, Benjamin Hummel, Florian Deissenboeck, Martin Feilkas, Christian Schlögel, Andreas Wübbeke:

Regression Test Selection of Manual System Tests in Practice.

Proceedings of the 15th European Conference on Software Maintenance and Reengineering (CSMR’11), 2011.

[Paper] [Link] [BibTeX]
Elmar Jürgens:

Research in cloning beyond code: a first roadmap.

Proceedings of the 5th International Workshop on Software Clones (IWSC’11), 2011.

[Paper] [Link] [BibTeX]
Elmar Juergens:

Why and How to Control Cloning in Software Artifacts.

Dissertation. Technische Universität München, 2011.

[Paper] [BibTeX]
Elmar Juergens, Nils Göde:

Achieving Accurate Clone Detection Results.

Proceedings of the 4th International Workshop on Software Clones (IWSC’10), 2010.

[BibTeX]
Elmar Juergens, Florian Deissenboeck, Martin Feilkas, Benjamin Hummel, Bernhard Schaetz, Stefan Wagner, Christoph Domann, Jonathan Streit:

Can Clone Detection Support Quality Assessments of Requirements Specifications?

Proceedings of the 32nd International Conference on Software Engineering (ICSE’10), 2010.

[Paper] [Link] [BibTeX]
Elmar Juergens, Florian Deissenboeck, Benjamin Hummel:

Code similarities beyond copy & paste.

Proceedings of the 14th European Conference on Software Maintenance and Reengineering (CSMR’10), 2010.

[Paper] [Link] [BibTeX]
Florian Deissenboeck, Lars Heinemann, Benjamin Hummel, Elmar Juergens:

Flexible Architecture Conformance Assessment with ConQAT.

Proceedings of the 32nd ACM/IEEE International Conference on Software Engineering (ICSE’10), 2010.

[Paper] [Link] [BibTeX]
Elmar Juergens, Florian Deissenboeck:

How Much is a Clone?

Proceedings of the 4th International Workshop on Software Quality and Maintainability (WoSQ’10), 2010.

[Paper] [BibTeX]
Benjamin Hummel, Elmar Juergens, Lars Heinemann, Michael Conradt:

Index-Based Code Clone Detection: Incremental, Distributed, Scalable.

Proceedings of the 26th IEEE International Conference on Software Maintenance (ICSM’10), 2010.

[Paper] [Link] [BibTeX]
Florian Deissenboeck, Benjamin Hummel, Elmar Juergens, Michael Pfaehler:

Model Clone Detection in Practice.

Proceedings of the 4th International Workshop on Software Clones (IWSC’10), 2010.

[Paper] [Link] [BibTeX]
Elmar Juergens, Florian Deissenboeck, Benjamin Hummel:

Clone Detection Beyond Copy & Paste.

Proceedings of the 3rd International Workshop on Software Clones (IWSC’09), 2009.

[Paper] [BibTeX]
Elmar Juergens, Florian Deissenboeck, Benjamin Hummel:

CloneDetective: A Workbench for Clone Detection Research.

Proceedings of the 31st International Conference on Software Engineering (ICSE’09), 2009.

[Paper] [Link] [BibTeX]
Markus Herrmannsdoerfer, Sebastian Benz, Elmar Jürgens:

COPE - Automating Coupled Evolution of Metamodels and Models.

Proceedings of the 23rd European Conference on Object-Oriented Programming (ECOOP’09), 2009.

[Paper] [Link] [BibTeX]
Elmar Juergens, Florian Deissenboeck, Benjamin Hummel, Stefan Wagner:

Do Code Clones Matter?

Proceedings of the 31st International Conference on Software Engineering (ICSE’09), 2009.

[Paper] [Link] [BibTeX]
Florian Deissenboeck, Elmar Juergens, Klaus Lochmann, Stefan Wagner:

Software Quality Models: Purposes, Usage Scenarios and Requirements.

Proceedings of the 7th International Workshop on Software Quality (WoSQ’09), 2009.

[Paper] [BibTeX]
Christoph Domann, Elmar Juergens, Jonathan Streit:

The Curse of Copy&Paste – Cloning in Requirements Specifications.

Proceedings of the 3rd International Symposium on Empirical Software Engineering and Measurement (ESEM’09), 2009.

[Paper] [BibTeX]
Martin Feilkas, Daniel Ratiu, Elmar Jürgens:

The loss of architectural knowledge during system evolution: An industrial case study.

Proceedings of the 17th IEEE International Conference on Program Comprehension (ICPC’09), 2009.

[Paper] [Link] [BibTeX]
Florian Deissenboeck, Benjamin Hummel, Elmar Jürgens, Bernhard Schätz, Stefan Wagner, Jean-François Girard, Stefan Teuchert:

Clone detection in automotive model-based development.

Proceedings of the International Conference on Software Engineering (ICSE’08), 2008.

[Paper] [Link] [BibTeX]
Florian Deißenböck, Benjamin Hummel, Elmar Jürgens:

ConQAT - Ein Toolkit zur kontinuierlichen Qualitätsbewertung.

Tagungsband der Software-Engineering-Konferenz, 2008.

[Paper] [Link] [BibTeX]
Stefan Wagner, Florian Deissenboeck, Benjamin Hummel, Elmar Juergens, Benedikt Mas y Parareda, Bernhard Schaetz (editors):

Selected Topics in Software Quality.

Report TUM-I0824. Technische Universität München, 2008.

[BibTeX]
Stefan Wagner, Florian Deißenböck, Martin Feilkas, Elmar Jürgens:

Software-Qualitätsmodelle in der Praxis: Erfahrungen mit aktivitätenbasierten Modellen.

In Proceedings of Workshop Software-Qualitätsmodellierung und -bewertung (SQMB ’08), 2008.

[Paper] [BibTeX]
Elmar Juergens, Benjamin Hummel, Florian Deissenboeck, Martin Feilkas:

Static Bug Detection Through Analysis of Inconsistent Clones.

Proceedings of SE’08, 2008.

[Paper] [BibTeX]
Florian Deissenboeck, Elmar Juergens, Benjamin Hummel, Stefan Wagner, Benedikt Mas y Parareda, Markus Pizka:

Tool Support for Continuous Quality Control.

IEEE Software, Vol. 25, 2008.

[Link] [BibTeX]
Markus Pizka, Elmar Jürgens:

Automating Language Evolution.

First Joint IEEE/IFIP Symposium on Theoretical Aspects of Software Engineering (TASE’07), 2007.

[Link] [BibTeX]
Elmar Jürgens, Markus Pizka:

Variability Models Must Not be Invariant!.

First International Workshop on Variability Modelling of Software-Intensive Systems (VaMoS’07), 2007.

[Paper] [Link] [BibTeX]
Martin Feilkas, Elmar Juergens, Tilmann Seifert:

Domänenspezifische Sprachen und generative Entwicklung.

Proceedings, 2006.

[Paper] [BibTeX]
Elmar Jürgens, Markus Pizka:

The Language Evolver Lever – Tool Demonstration.

Electronic Notes in Theoretical Computer Science, Vol. 164, 2006.

[Paper] [Link] [BibTeX]

Research Activities

  • PC Co-Chair for 7th International Workshop on Software Clones (IWSC '13) of the International Conference on Software Engineering (ICSE '13)
  • Programm Commitee Member for IWSC, WCRE, ESEM, CSMR, ICSM, CSMR-WCRE and ICPC
  • Reviewer for Computer Journal