Download - Zeus’ Guide To Software Delivery
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Zeus’ Guide To Software Delivery
Mark Shead
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Banned Under Roman Emperors
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Trajan
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Trajan
Mimes
By Ronald - Inge Worringen, Cologne, CC BY-SA 1.0, https://commons.wikimedia.org/w/index.php?curid=1479357
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Mimes Weren’t Silent
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Caligula
The word “goat”
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Julian the Apostate
Christian’s use of Homer
https://upload.wikimedia.org/wikipedia/commons/3/3d/IVLIANVS.png
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Christianity Paganism
Rome was vacillating between Christianity and Paganism
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Odyssey Iliad
Julian wanted to help promote Paganism by saying Christian teachers couldn’t use homer.
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So what?
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If a school decided to stop using Homer…
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If a tree falls in the woods and there is no one to hear it, does it make a sound?
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No. No one cares.
If a tree in the woods falls on a mime…does anyone care?
Could it fall on a goat instead?
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What was so important about Homer?
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Stories = Communication
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Like Design Patterns
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Public Dialog
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Mythology used to Reason in the Public Square
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Mythology used to Reason about Software Development
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Odysseus
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Early Days
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Suitor of Helen
Helps Tyndareus in exchange for help winning Penelope
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The Oath
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Menelaus marries Helen.
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Menelaus and Helen made king and queen of Sparta.
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Odyssey marries Penelope.
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Everyone lives happily …
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Until…
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Paris Abducts Helen
And by “abducts” I mean Helen decided to run away with Paris.
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Menelaus calls in the promise
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Odysseus doesn’t want to go to Troy
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0
25
50
75
100
Cost If Things Go Poorly vs. Benefit If Things Go Well
Magnitude of SuccessMagnitude of Failure
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25
50
75
100
Cost If Things Go Poorly vs. Benefit If Things Go Well
Win =Menelaus Gets Helen Back Loss =
Death and Suffering
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Commitments with all downside and no upside
In large organizations we tend to punish people who tried something new and failed.
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Achilles
Different motivations
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Obscurity and Long Life vs.
Glory and . . . . .
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Obscurity and Long Life vs.
Glory and Death
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Commitments
What do teams win if they succeed? What do they lose if they fail?
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Odysseus - more time with his kid Achilles - immortality through fame
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Skunk works team on government project
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1. Work from home effectively 2. Control of delivering value
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1. Work from home effectively 2. Control of delivering value
More time with kids
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1. Work from home effectively 2. Control of delivering value
More time with kids
Glory… without death
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Polyphemus
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Polski 1810
https://commons.wikimedia.org/wiki/File:OdysseyPolyphemos.png
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Noman
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No man is killing me!
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Cyclops – if any man on the face of the earth should ask you who blinded you, shamed you so- say Odysseus, raider of cities, he gouged out your eye, Laertes’ son who makes his home in Ithaca
Lay Er TeesAbout as smart as the vandals who wrote on the Lincoln memorial by writing their address on it
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Polyphemus
Böcklin 1896
https://commons.wikimedia.org/wiki/File:Arnold_B%C3%B6cklin_-_Odysseus_und_Polyphemus_(1896).jpg
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Hubris
Pride - Thinking you are so much better that you don’t need to be humble.
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Agile Hubris
Thinking you are so good, that you have nothing to learn.“We are Agile because we have a meeting we stand for 15 minutes a day.”(What about continuous improvement?)
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Daily Stand-up Meeting 2 Week Sprints Scrum Master Retrospectives Delivering Useful Software
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Cost of hubris for Odysseus?
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10 years getting back to Ithaca
Turns out Polyphemus was the son of Poseidon.
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What is the cost of hubris in software development?
Lack of continuous improvement
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Odysseus’ Men3 examples
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Aeolus Tied up the winds contrary to getting to IthacaTold his men not to open the bag
https://commons.wikimedia.org/wiki/File:Isaac_Moillon_-_%C3%89ole_donnant_les_vents_%C3%A0_Ulysse.jpg
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while Ulysses is asleep within sight of Ithaca, his companions open the bag; contrary winds rush out while Ulysses is asleep, his companions open the bag; contrary winds rush out https://commons.wikimedia.org/wiki/File:De_metgezellen_van_Odysseus_maken_de_zak_open_waarin_Aeolus_de_winden_besloten_had,_RP-T-00-444.jpg
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Song of the Sirens
Circe Warns of Siren’s
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Plug the men’s ears with beeswax
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Tie Odysseus to Mast
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Bind him again if he cries out.
This is key.
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Sirens = Beautiful Sea Women?
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https://commons.wikimedia.org/wiki/File:Odysseus-siren_Parthenope,_the_mythological_founder_of_Naples.jpg
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Odysseus and the Sirens, an 1891 painting by John William Waterhouse
https://commons.wikimedia.org/wiki/File:WATERHOUSE_-_Ulises_y_las_Sirenas_(National_Gallery_of_Victoria,_Melbourne,_1891._%C3%93leo_sobre_lienzo,_100.6_x_202_cm).jpg
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After men eat cattle, Zeus strikes the ship and only Odysseus survives on Calypso’s island
Tribaldi 1554-1556https://commons.wikimedia.org/wiki/File:Pellegrino_Tibaldi_001.jpg
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• Aeolus’ Bag of Wind • Song of the Sirens • Cattle of Helios
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Operations Team vs.
Shift to the Cloud
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“Reaching out” to security department.
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If people don’t have something clear to do, they will often do things
that are counter productive.
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Diana and Orion
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https://commons.wikimedia.org/wiki/File:Etienne_Delaune,_Diana_Mourning_the_Death_of_Orion,_NGA_47815.jpg
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Do we know our target?
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Usable System
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“Super Important” Features
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Existing Functionality New Features
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Existing Functionality New Features
Super duper important!
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Existing Functionality New Features
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Existing Functionality New Features
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Existing Functionality New Features
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Existing Functionality New Features
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Existing Functionality New Features
Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021
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Preserve Options
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Can we preserve more options?
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Minimal Viable New Features
Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021
Existing Functionality
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Minimal Viable New Features
Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021
Existing Functionality
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Minimal Viable New Features
Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021
Existing Functionality
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Minimal Viable New Features
Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021
Existing Functionality
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Theseus
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Mother AethraFather AegeusGiven a task to start with.Born in Troezen headed to Athens
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Interviewing Developers
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Fizz Buzz
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• Count to 100 • Multiples of 3 replaced by Fizz • Multiples of 5 replaced by Buzz • Multiples of 3 & 5 replaced by FizzBuzz
1, 2, Fizz, 4, Buzz, Fizz, 7, 8, Fizz, Buzz, 11, Fizz, 13, 14, FizzBuzz...
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Given a list of numbers, which number is closest to 0.
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1, 4, 8, 2, 55, 2, 3
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-10, 4, 8, -1, 55, 2, -3
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Don’t ever schedule me for an interview like this again!
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Spring / Angular app to convert Arabic to Roman numerals.
https://github.com/markshead/bdd-demo
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Perl class
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Emulated Hercules
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Cleared the Land of Bandits
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Role Models
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Government banks can’t emulate Facebook
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Government banks can’t emulate Facebook
Shouldn’t
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Procrustes
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Forcing Conformity Can Kill Teams
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My chat with Procrustes
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How can we setup JIRA to support Agile?
Let teams customize so it best visualizes their current way of working and iterate from there.
That sounds like a lot of work on our end. How can we make sure everyone is doing the exact same thing so we don’t have to spend time managing JIRA.
If the purpose of JIRA is to minimize your work managing JIRA, don’t let anyone login.
If the purpose is to make teams productive, then let
teams customized it to best represent their work.
Mark
Mark
JIRA manager
JIRA manager
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Minos king of Crete prayed for a sign that he was supposed to be king. Poseidon sent a beautiful bull but instead of sacrificing it, Minos added it to his herd and sacrificed an inferior bull. The bull destroyed the land until a labor of Hercules was to capture it and take it away. It broke lose and wandered into Marathon where it became known as the Bull of Marathon. It was captured and held in Athens but broke free.
Before Aegeus recognized Theseus, his wife Medea (who realized Theseus was Aegeus’ son) sent him to capture the Bull of Marathon.
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Theseus was sent to die catching the bull.
He was expected to fail
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Androgeos was previously killed trying to catch the bull.
Androgeos was son of Minos king of Crete. This led to the war between Athens and Crete that ended when Athens agreed to send 7 boys and 7 girls to be fed to the minotaur every 9 years.
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BDD as Requirements
Explain BDD
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Developer language
Business owner language
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Developer language
Business owner language
BDD Language
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Given I am not an admin user When I login to the system Then I cannot see the admin menu
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Given I am an admin user When I login to the system Then I can see the admin menu
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“We need to test if operations can use feature files as the
requirements.”
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“We want to make sure that someone off the street could use the feature files to support the application.”
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Do you have detailed requirements for your existing applications?
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Do you have detailed requirements for your existing applications?
Yes
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Have you performed this type of test with those requirements?
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Have you performed this type of test with those requirements?
No
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Then how would you know if feature files passed the test or not?
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Then how would you know if feature files passed the test or not?
Um….
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Designed to Fail
This “test” was a Bull of Marathon moment.Found a team doing what we were suggesting and offered to setup a meeting. They refused. But they did eventually setup their own meeting and after that the test got scrapped.
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Greek Concept of Hubris
Intentionally trying to humiliate or degrade someone.
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Not my finest coaching moment.
How do you justify your salary if you could be replaced by a random person off the street?
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Medea tries to poison Theseus, but Aegeus recognizes his sword and stops his son form drinking the poison.Aegeus king of Athens held a large competition and Minos’ (king of Crete) son (Androgeus) won all the games. Androgeus was sent to capture the bull and it killed him (or it got loose and killed him). Minos attacked Athens and Aegeus agreed to send 14 youths to be fed to the Minotaur every 9 years. This may sound familiar because Minos came up with the idea after seeing Hunger Games.
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Aegeus doesn’t want Theseus to go. Theseus says they will fly white sails on the way back to show he has defeated the minotaur.https://en.wikipedia.org/wiki/Fran%C3%A7ois_Vase
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Minotaur
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Minotaur kept in labyrinth designed by Daedalus.Why keep it around?Son of Minos’ wife.https://commons.wikimedia.org/wiki/File:Tondo_Minotaur_London_E4_MAN.jpg
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Does this sound familiar?
1. No one wants it.2. It consumes some of your finest people3. No one knows how to get rid of it4. Build more and more stuff around it just to keep it from destroying everything.
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Minotaur = Legacy Software
Abomination that should never have been created
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Software Hero
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Application vs.
System to Deliver Valuable Features
An application will turn into an abomination.A system is designed to improve itself
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Ariadne (Minos’ daughter) asked Daedalus (father of Icarus) how to escape the labyrinth and he told her to give Theseus a ball of yarn to find his way out.Maybe he can knit himself a sweater if he gets cold.
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Content Management System
Couldn’t move forward because different ideas of what was possible.
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What did Ariadne do to help Theseus?
She went and asked the guy who built the thing.
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Don’t Just Speculate
Setup the CMS and showed how it worked. Service contract with company that makes it
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1896 H.A. Guerber Eclectic Textbook
https://commons.wikimedia.org/wiki/File:Theseus_and_the_Minotaur.gif
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https://upload.wikimedia.org/wikipedia/commons/9/90/Theseus_Minotaur_Mosaic.jpg
Daedalus (father of Icarus) built the labyrinth and was eventually imprisoned in it by MinosBeat him up with a golf club
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AriadneNotice the ship headed back home?
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Black Sails
Aegeus kills himself when he sees the black sails
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Signal Success
Demos.. but more than demos
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Definition of Progress: Working Software
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Definition of Working Software: Software is Doing Work
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Is software “doing work” if it is only getting test data?
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Unreleased Code
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Shadow Mode
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Return on Investment
Signal success by return on investment. We will talk about that more with the ship of Theseus
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Ship of Theseus
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Athens to wait 30 days for the ship to get back before executing him.1261 BC Theseus399 BCDeath of Socrates 1787 Jacques-Louis Davidhttps://upload.wikimedia.org/wikipedia/commons/8/8c/David_-_The_Death_of_Socrates.jpg
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800 year ship
Replaced one board at a timeWhen does it become a new ship
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Not a ship… a process
Replaced one board at a timeWhen does it become a new ship
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Hercules
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Juno’s Snakes
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Teiresus - Blind seer who Odysseus goes to see.Painted by Joshua Reynolds for Catherine the Great
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Superhuman Effort to Overcome Management Opposition
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Eos and Tithonus
goddess named Eos who fell in love with a Trojan named Tithonus. She asked Zeus to make Tithonus immortal and Zeus did.
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Aurora was another name for herFrancesco de Mura
https://commons.wikimedia.org/wiki/File:Aurora_Greek_Goddess.jpg
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https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Tithonos_Eos_Louvre_G438_detail.jpg/1069px-Tithonos_Eos_Louvre_G438_detail.jpg
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Cupid and Psyche
Cupid pricks himself with one of his own arrows and falls in love with a mortal woman named Psyche. Eventually they work through all the issues with the mother-in-law-to-be and Cupid makes Psyche immortal so he can marry her.
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Wikipedia
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Actual Support and Buy-in