Ea balanceren tussen denken en doen
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Transcript of Ea balanceren tussen denken en doen
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Bas van Gils
+31-(0)6-484 320 88
http://linkedin.com/in/basvg
http://blog.bizzdesign.com
http://www.twitter.com/basvg
“Life is and will ever remain an equation incapable of solution, but it contains certain known factors.”--Nikola Tesla (1935)
Bas van Gils
Personal
Married, two kids
Born in Tilburg, living in Deventer
Too many hobbies
Education
Master in Information Management &
Technology (Tilburg)
PhD in Computer Science (Nijmegen)
Work
vtsPN
Strategy Academy / Strategy Works
BiZZdesign
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Agenda
Survival • What does it take to survive
• Why is architecture important?
ArchiMate• A brief (and abstract) introduction
• Example
3 principles• Less is more
• It’s a journey, not a destination
• Conceptual elegance
Situations• No two situations are alike
• Support complex & complicated domains
Research• Completeness
• Value
• Adoption
(Unless someone has a better idea)
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What many organizations look like
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Question : how do complex enterprises survive?
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The need for Enterprise Architecture (EA)
• Organizations these days are inherently complex
• In order to survive and thrive, this complexity must be managed
• An architecture (description) helps to build a shared understanding of the enterprise
• Note 1: complexity does not have to be a bad thing
• Note 2: not everything about an enterprise can be understood in great detail
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If you can not measure it, you can not improve it
(Lord Kelvin)
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EA is a conceptual tool that helps organizations get a deeper understanding of their own structure and of the way they work. It provides a map of the enterprise and it is a “route planner” for business and technology change. Important uses of it are in systematic IT planning/ architecting and in enhanced analysis and support for decision-making.
handbook enterprise architecture, BiZZdesign, 2012
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Architecture (models)
Real world
Perceive RepresentModel
Conception modelOrganization
of model
Fundamental organization
of model
Based on the FRISCO report
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Structure and behavior
structure
behavior
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Active / passive structure
Real world
Concept: computer
Context 1: the computer is
“active structure”
Context 2: the computer is
“passive structure”
The two contexts rarely coincide
Perceive
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ArchiMate framework
Passive structure Behavior Active structure
Executed byInvolves
Business layer
Application layer
Technology layer
Supports
Supports
Motivation
Implementation & Migration
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Model vs view: visualization
Real worldPerceive
Mental model
ArchiMate model
Represent / model
translate
Visualization (=view)
Represent translate
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Services: what we do for the customer
Process: the main pattern
Process: one of the instantiations
IT and infrastructure support
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Prediction is very difficult especially if it's about the future
(Niels Bohr)
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It is not the strongest of the species that survives, nor the most
intelligent that survives. It is the one that is the most adaptable to
change
(Charles Darwin)
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Plans are worthless, but planning is everything
(Dwight D. Eisenhower)
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Implications
There is a need to get to grips with complexity…
… but not every aspect of the enterprise can be analyzed understood
We want to plot a route for business success….
… but we don’t know what the future will bring.
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The 3 principles for successful architecture models
1
2
3
Model as little as possible, but not less
Maintain a (statement of) direction rather than plan to reach a specific goal
Strife for conceptual elegance but recognize that the real world is messy
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Striving for (conceptual) elegance is not new
“Elegance is not a dispensable luxury but a factor that decides between success and failure.”
“The lurking suspicion that something could be simplified is the world's richest source of rewarding challenges.”
“Simplicity is prerequisite for reliability.”
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Conceptual elegance in EA
How many managers feel as if they are in a maze because…
Maintenance cost of IT landscape is sky-
rocketing. We keep investing and the problems only get
worse!
The real world is messy. A “baseline architecture” helps to gain
an understanding of complexity
A crisp and elegant view of the future is a prerequisite for a reliable and agile
enterprise
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EA in different situations
• Developing an architecture makes sense in a complicated / complex domain
• The real world = messy
• Developing an architecture for• Analysis• Shared understanding • Brainstorm solution alternatives
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Some answers from the questionnaire
Ontwerpen in het groot (vanuit een overzicht) en ontwerpen in het klein (vanuit een probleemstelling).
We kunnen zeggen dat de architectuur het hoe beschrijft vanuit de behoefte tot samenhang in het totale ITlandschap, terwijl het design betrekking heeft op een specifiek onderdeel van dat landschap.
Architectuur is het stellen van kaders waarbinnen een ontwerp uitgevoerd kan/moet worden. Design is het ontwerpen van systemen binnen de kaders die gesteld zijn door architectuur.Dus Architectuur stelt de regels en design moet voldoen aan de regels.
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Model as little as possible (but not less)
The setting
• Governmental organization
• IT landscape has ‘evolved’ over the years, yet has a basis rooted in law
• Restructuring is necessary. But how? In what order? Who will finance it? What is impact on innovation?
Assessment
• Complicated, not complex
• Model: components, main functions / objects as well as an outline of infrastructure
• Map out functional/ technical quality to assess priorities
Results
• Map out baseline in 10 weeks
• Developed high-level roadmap + first iteration based on a target architecture
• (Implementation is about to start)
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Models in a complex situation
The setting:
• Large insurance organization
• Acquires (hostile take-over) a competitor after 2 major reorganizations in 3 years.
• During integration the relation has ‘evolved’ to a shouting match
Assessment
• Complex domain
• No “right or wrong” or “single best answer”
Results
• Used joint modeling sessions to gain a common language and shared understanding
• We crafted a process x department map and used it to pin-point pain points.
• This big-picture view helped brainstorm / experiment with solution alternatives
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Research challenges
Language evolution
• What concepts / structures / … are missing for a great EA practice?
Value
• There is a lot of evidence about the value of EA. What does modeling contribute?
Adoption
• ArchiMate is widely adopted. Which parts are used the most? Mostly by IT or business? Why? Are there geographical / industry differences?
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• Architecture – like long distance running – is an endurance game:
– it is hard work
– it takes a while before it pays off
– it gets you fit enough to face tough challenges
• There are many advantages to using architecture / ArchiMate modelling (when used correctly)
• Interesting research challenges remain
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