Post on 18-Feb-2017
transcript
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CTO in a BoxMark Masterson - @mastermark
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what will we cover?
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● How to think like a CTO
● Why (and how) that’s different than thinking like
<insert role name here>
● Tools you can use to be more effective and
successful in thinking like a CTO
● Some examples of what thinking this way leads to
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Karl Marx
“Sell a man a fish, he eats for a day, teach a man how to fish, you ruin a wonderful business opportunity.”
what we won’t cover
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● Working code
● Working code
● Working code
● and lastly: working code...
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Think like a CTO?
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THE MAP IS NOT THE TERRITORY
Alfred Korzybskihttps://en.wikipedia.org/wiki/Map%E2%80%93territory_relation
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Image source: http://www.bbc.co.uk/news/science-environment-21487016BBC © 2013
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Scene from Monty Python and the Holy Grail Copyright ® 2000-2009 New Media Broadcasting Company, Inc. All Rights Reserved. http://pythonline.
com/
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Tools
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Risk = likelihood (failure) * cost (failure)
https://goo.gl/6pjsbu
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Risk = likelihood (failure) * cost (failure)
FAULT PREVENTION
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Risk = likelihood (failure) * cost (failure)
FAULT PREVENTION FAULT TOLERANCE
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Risk = likelihood (failure) * cost (failure)
MTTF FAULT TOLERANCE
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Risk = likelihood (failure) * cost (failure)
MTTF MTTR
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Risk = likelihood (failure) * cost (failure)
FAULT PREVENTION FAULT TOLERANCE
ROBUST
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Risk = likelihood (failure) * cost (failure)
FAULT PREVENTION FAULT TOLERANCE
ROBUST ADAPTABLE
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http://www.amazon.com/Antifragile-Things-That-Gain-Disorder/dp/1400067820/
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Money
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Purchased
Leased
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Buying (storage) assets only makes sense if the asset has a lifetime of greater than 4 years
To Lease or Not to Lease from Storage Cloudshttp://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5445166
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OK. Let’s see some (more) examples
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http://www.ics.uci.edu/~fielding/pubs/dissertation/top.htm http://www.ics.uci.edu/~taylor/documents/2002-REST-TOIT.pdf
REST and HATEOAS
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Hypermedia DRiven Architecture
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Rethinking Time in Distributed Systems (Stanford, Lec. 6, 2009)https://goo.gl/Pg1ceP
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R RESILIENT
RUGGED
RELIABLE
Concepts / featuresFeedback loopsCircuit breakersLimp ModeDegenerate NodesMTTREtc.
Maps to…
Concepts / featuresDisaster recoveryBusiness continuityBackupsPatchingVirus scanningEtc.
THE hiRSutE PATTERN
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S SCALABLE
STABLE
SAFE
Concepts / featuresSelf-monitoring /optimizationNode strengthProactive “pull requests”Immune systemEtc.
Maps to…
Concepts / featuresIDSFirewallsPerimetersPatchingVirus scanningCapacity planningPerformance engineeringEtc.
THE hiRSutE PATTERN
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E EFFICIENT
ELASTIC
EFFECTIVE
Concepts / featuresHorizontal scalabilityChaos MonkeysNode deathContainersMicroservicesGrowth pattern managementEtc.
Maps to…
Concepts / featuresDisaster recoveryBusiness continuityOperationsSystem administrationEtc.
THE hiRSutE PATTERN
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Stigmergy
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Stigmergy
“... indirect coordination between agents or actions… the trace left … by an action stimulates the ... next action...”
https://goo.gl/lim73b
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Stigmergy
“... emergent cooperation...”
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One more thing...
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Wardley Mapshttp://blog.gardeviance.org/2015/02/an-introduction-to-wardley-value-chain.html
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Launchpad
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thankyou
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