1 Kenjutsu Kenjutsu on legacy systems on legacy systems How to swing the sword How to swing the sword and separate valuable from and separate valuable from outdated parts outdated parts
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KenjutsuKenjutsu on legacy systems on legacy systemsHow to swing the sword How to swing the sword
and separate valuable from and separate valuable from outdated partsoutdated parts
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Efficiency
Time to market Cost of change
Changeability
InvestmentCompetitiveness
Agility
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Start from scratch
Invasive Engineering
Regular change
Ways to change a system …
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GSM Router
Custom Interface Board
Single Board Computer
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7
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Ticket Vending Machine
Planning / Procurement / Construction
Case / Mechanics
Coin Tower
Payment
COTS Processing Unit (Desktop Computer Board)
CommPrinters
I/O
Business Logic
Ticketing HMI Maintenance HMI
…Tariff
Printing
Operating System (Linux)
…
EP2I/O Extender
Caroussels
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Retrospective
Saved investments
Systems became changeable
65 Passenger Information Displays 700 Ticket Vending Machines
Invasive engineering works!
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Source and frequency of change
RuleProcess
DesignFashion
Technology
Physics
Stable
Dynamic
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Our kids will have to deal with our legacy
give them a chance!
Align boundaries to frequency of change
Supercomputing Systems AG Phone +41 43 456 16 00Technopark 1 Fax +41 43 456 16 108005 Zürich www.scs.ch
Vision meets reality.
Supercomputing Systems AGChristian Bü[email protected] +41 43 456 16 00
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