Software Architecture: Past, present &...
Transcript of Software Architecture: Past, present &...
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Software Architecture: Past, present & future
Philippe Kruchten
Helsinki, August 22nd 2012
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Philippe Kruchten, Ph.D., P.Eng., CSDP
Professor of Software Engineering NSERC Chair in Design Engineering Department of Electrical and Computer Engineering
University of British Columbia Vancouver, BC Canada [email protected] Founder and president Kruchten Engineering Services Ltd Vancouver, BC Canada [email protected]
2 Copyright © KESL 2012
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ISAW-1
ISAW-2
ISAW-3
ISAW-4
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
WICSA-1
WICSA-2
WICSA-3
WICSA-4
WICSA-5
SPLC-1
UML 1.1
UML 2
Koala
Darwin Rapide
Wright C2
MIL CSP
EWSA-1
QOSA-1
SAAM
Building blocks
RUP
ATAM
COPA
BAPO
ATAM 2
ADD
Shaw Garlan
Bass&al
Hofmeister
SEI Eval
SEI Docu
Rechtin
Witt et al
Perry Wolf
IEEE1471
Boxology
RM ODP
GOF Pattern
Shaw Coming of Age
4+1
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ISAW-1
ISAW-2
ISAW-3
ISAW-4
1992 1993
1994
1995 1996
1997 1998
1999
2000
2001
2002
2003
2004
2005
WICSA-1
WICSA-2
WICSA-3
WICSA-4
WICSA-5
SPLC-1
UML 1.1
UML 2
Koala
Darwin Rapide
Wright C2
MIL CSP
EWSA-1
QOSA-1
SAAM Building blocks
RUP
ATAM
COPA
BAPO
ATAM 2
ADD
Shaw Garlan
Bass&al
Hofmeister
SEI Eval SEI Docu
Rechtin
Witt et al
Perry Wolf
IEEE1471
Boxology
RM ODP
GOF Pattern
Shaw Coming of Age
4+1 views
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2001
2002
2003
2004
2005
WICSA-3
WICSA-4
WICSA-5
UML 2
EWSA-1
QOSA-1
ATAM 2
ADD
SEI Eval SEI Docu
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2001
2002
2003
2004 WICSA-3
WICSA-4
WICSA-5
UML 2
EWSA-1
QOSA-1
ATAM 2
ADD
SEI Eval SEI Docu
ISO 42010 2005
2006
2007
2008
2009
2010
2011
2012
ISO 42010
Bass & al 3
Gorton
Taylor & al
WICSA-7
+WICSA-8
WICSA-9
WICSA-10 +ECSA-6
WICSA-6
ECSA
Bosch PBK
ECSA ECSA-3
ECSA-5
ECSA-4
CompArch
CompArch CompArch
CompArch
CompArch
CBSE
SPLC Series (2000-2012)
Decision
ArchiMate
Hofmeister
Wood&Rozanski
JSS
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Reflections: the Good
• Stabilization
– Concepts, representations, roles, processes
– Standards
– Books have 2nd and 3rd edition
– Certifications
• Education
– Academia: Taylor, Bass et al.
– Industry: Gorton, or Wood&Rozanski
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Reflections: the Bad
• Proliferation of conferences…? • Widening industry-academia gap
– Academic game • Tenure, publish/perish, • Granularity • Funding
– Access to information – Agile methods – IP
• Fragmentation of research – Integration – Scaling – CS vs. SW Eng.
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Reflections: the Bad
• Proliferation of conferences…? • Widening industry-academia gap
– Academic game • Tenure, publish/perish, • Granularity • Funding
– Access to information – Agile methods – IP
• Fragmentation of research – Integration – Scaling – CS vs. SW Eng.
ADL
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Future
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• The real issues? the “wetware” – Culture (values, beliefs, attitudes)
• Collaboration and coordination • Trust
– Process – (not YAMW Yet another magic wand) – Reasoning process
• Qualitative research – Hard, different, not in a lab, longer
• Larger, coordinated research efforts – Integrating many magic wand
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Two kinds of SW architect
Architectus Reloadus
• External Focus
• Requirement facing
• New technologies
• Business
• Partners
• Ecosystem
• Arch. specification
Architectus Aryzus
• Internal focus
• Code-facing
• Structure
• Development process
• Communication
• Implementation
• Arch. delivery
Fowler 2003 Who needs an architect
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Whom are we focusing on?
Architectus Reloadus
• External Focus
• Requirement facing
• New technologies
• Business
• Partners
• Ecosystem
• Arch. specification
Architectus Aryzus
• Internal focus
• Code-facing
• Structure
• Development process
• Communication
• Implementation
• Arch. delivery
Economic (Value vs. cost) Culture (values, beliefs, attitudes…) Ways of working (Process)
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Whom are we focusing on?
Architectus Reloadus
• External Focus
• Requirement facing
• New technologies
• Business
• Partners
• Ecosystem
Architectus Aryzus
• Internal focus
• Code-facing
• Structure
• Development process
• Communication
• Implementation
Economic (Value vs. cost) Culture (values, beliefs, attitudes…) Ways of working (Process)
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Perry & Wolf 1992
• “accept with minor revisions”
• All the ingredients are present, except maybe: – the process (architecting)
– the role (architect)
– Views? What views?
• It tells a story, not a complete story – Examples not prescriptions
• We can retell their story in our own ways, in our own context. Which we did. Very slowly.