Craig Smith

An Introduction to Clojure

Craig Smith — Sun, 12 May 2013 13:40:45 +0000

I had the pleasure this week to sit in on a 2 day Introduction to Clojure workshop being run by one of Clojure’s core developers, Stuart Sierra. YOW! and Relevance, Inc. are running these workshops on the east coast of Australia throughout May 2013 and for someone still very new to functional concepts it was a great introduction to functional programming as well as the Clojure language itself.

The key to a workshop like this is the slides with the code examples and the labs to practice the learnings, Nonetheless, here are my notes from the course on some of the concepts that I picked up.

Introduction to Clojure

designed to fix shared state concurrency, designed to run on the host platform
ClojureScript designed to target devices that cannot run a full JVM like mobile platforms, browsers, etc..
most of this course is applicable to ClojureScript, just the interrops to the host environment are different
BigInt (trailing N), BigDecimal (trailing M)
Strings in double quotes, characters in “”, reg ex are started with a #
literal true and false, nil is the same as Java null
symbols are words in your program you want to reference from somewhere else, always resolve to something else
keywords are a special type of symbol, start with a colon :, fixed labels that have no meaning, used for names of fields often, close to enum in Java
REPL – read, eval, print, loop – from LISP, all the steps are separate which is different to interactive terminal
every expression starts with an expression, everything returns an expression which is why you get nil when doing a println
REPL *1 will get you most recently used expression
print and println will give you human readable, prn and pr will give you the machine readable output
list are written in parens, usually represent function calls
vectors usually reflect collections, in []
maps are key value collections, in {}
set starts with a hash and curly brackets
commas are whitespace in Clojure
first is the function position, usually starts wuth a function or an expression that returns a function
quote (‘) is syntactic sugar for quote, prevents evaluation, common issue when starting Clojure when dealing with lists
doc – built in documentation
Leiningen – built on Maven, hides complexity but gives you its goodness
project.clj – dependency file

Functions

functions are first class and values, most of the core code are pure functions (no side effects)
defn defines a named function (defn greet [name] ) is a definition called greet, passes a name and runs some functions, then call as (greet )
can have multiple aritys, [] is no arguments, others are the named arguments, useful way to provide defaults
& in argument vector says next arguments gets all the remaining arguments in a list (0 or more)
fn is anonymous function with no name (fn [parms] body), to call it you can stick it at the head of a list, use this if you need to do something one time
shorter synatx is #(), and use % sign for the arguments, syntactic convenience
usually invoke a function by putting it at the head of the list
apply takes a function and list or collection or arguments, same as invoking a function on those arguments
let used for local variables, uilt into the compiler, takes a pair set of bindings (symbol and an evaluated expression) and then a body of any number of expressions
fn creates a closure, locals are stored and kept with the function
invoking Java – instantiation (Class. argument)
read Clojure inside out, read the inner most function and then read out

Expressions and Loops

in Clojure everything is an expression, always return a value even if that is nil, multiple expressions always return the last value
flow controls always return a value as well
logical false is false or nil, everything else is true, similar to the semantics in Ruby and Python
when is a macro – check and do a buch of things if evaluates true
cond – tree of if then else without lots of nesting, test – expression pair, stops when it hits the first true test, can end with an :else default by convention only
case – occasionally useful, like switch in Java, takes constants and returns value, if you don’t define a default you get an error, odd number of expressions, the last one is the default
dotimes – basic loop (dotimes [i 3]), only useful for side effects as it never returns a value
doseq – iterates over a collection, like for-each
for – not for looping, generates data, returns a sequence
recur – for recursion, rarely used, loop defines bindings which you recur
exceptions – don’t use them much in Clojure, no checked exceptions, try-catch-finally as per Java, throw to throw an exception
ex-info and ex-data that allows you to pass back a map
with-open – convenience wrapper, works with any method that needs to be closed

Namespaces

Clojure runtime is a singleton within the JVM
namespaces allow you thave the same name mean different things in different places
ns – use macro at the top of the source file to create a namespace, :require keyword to load the dependent libraries
implicit mapping between namespaces and files, dots into slashes and hypens into underscores
ns :use : only is deprecated form of :require from 1.4 up
ns :import for importing Java classes, every namespace imports java.lang
in-ns to change namespaces
equivalent macros for when using the REPL instead of a file
a bunch of functions for returning namespace information, but would rarely use these
private vars are just a metdata symbol, use ^:private, not truly private or hidden

Collections

a class or a struct becomes a map in Clojure
clojure.set – mathematical set operations
vectors are functions, can call using the indices
mostly use vectors, lists are useful when you want to work at the head of the list as it is more efficient, like simulating a stack
seq – returns a sequential view of something, like an iterator but it is not an iterator, can get first or rest
range – infinite lazy sequence of integers
into – puts a sequence into a collection
take / drop – take the first n in the sequence, drop the first n in the sequence, also filter and remove
map – the essence of functional programming – calls a function on a sequence and returns a sequence, the functional equivalent of for/each
reduce – powerful, uses first element if not initiated
some – to return the first logical true in the sequence

Concurrency

concurrency – multiple things happening concurrently that are sharing the same state
deref – returns current state, shortcut is @
atom – basic container with mutable state, changes are atomic, synchronous
ref – coordinate and share identities, synchronous, must be iolated in a transaction, uses locking under the hood
ensure – ensure the state is the same when the transaction is completed
alter – change the value of a reference in a transaction, if another transaction tries to change it gets aborted
commute – same behaviour as alter but allows concurent updates in a transaction, use for counters, adding elements to a map, if you are not sure use alter
agent – asynchronous communication, atomic updates, ensure only one thing done at a time, every agent has its own queue
send – send an action (function) to an agent, execute in the order that you send them, can’t guarantee that other threads are not sending action, fixed size thread pool
send-off – variable size thread pool
vars – thread safe, global identity, alter-var-root to modify global state created by a def, by convention dynamic var is surrounded by * (called earmuffs)
swap! and reset!, convention to put a bang at the end of functions that have side effects or shouldn’t be put inside a transation
watches – experimental, takes 4 arguments – key, reference, old state and new state, you can then add-watch
future – background process, if you de-reference the future it will block (@)
promise – like a future but no running process, like a container, can wait for it to deliver that promise to another thread, can only be delivered once
realized? – to ask if a promise has been delivered

Polymorphism

polymorphism – two types protocols and multi-methods
type – what is the type of class using class or type
maps do not have a notion of type, record allow you to give a type to a map, defrecord creates a record, by convention the name has a capital, records are maps so we can call all the map functions
record automatically creates the constructor function called ->, map-> takes a map
when you create a record you are generating a Java class, useful when creating a lot of maps with the same structure or to implement protocols
protocol – like a Java interface, group of functions that do not provide an implementation, called based on the first argument, defprotocol to create the functions
convention _ is an argument I don’t care about
reify – creates anonymous types
extend-type and extend-protocol – allows you to create new interfaces to existing types, solves the monkey patching issue
multimethods – generic methods, much more flexible than protocols, uses defmulti and defmethod, an extensible switch

Macros

macro – pure functions – defmacro – code is input and output, define the symbols to reflect the code that we want, macroexpand-1 is used for testing and debugging to see what that macro does
syntax quote `
unquote ~ and unquote splicing ~@
most of the core language where not functions are macros, write macros for syntactic convenience

Clojure and the JVM

Clojure is tightly integrated to the JVM, is unlikely to be the bottleneck performance wise
arrays can use aset and aget to access, use Clojure Collections but maybe needed for interoperability, can use to-array and into-array
types and collections are all mapped over to Clojure
built in benchmarking in Clojure using time function, time a loop to get a better indication rather than just time on its own
by default everything is boxed in Clojure, but Clojure has limited support for long and double primitives
compile – pass your namespace, will give you ahead of time compile which gives a modest (30% – 40%) speed increase amongst other benefits, usually will us leinengen or another tool (lein compile)

ClojureScript

ClojureScript is designed to deliver optimised JavaScript
two pieces – ClojureScrpt compiler written in Clojure on the JVM, compiles Clojure to JavaScript, then the Google Closure compiler optimises for space for performance
lein-cljsbuild makes ClojureScript tolerable
ClojureScript One but is superceded by Pedestal now
testing frameworks – Clojure.test, Midje testing framework written by Brian Marick and Simulant

Three A’s of Awesome

Craig Smith — Wed, 24 Apr 2013 04:43:36 +0000

Here is a highly inspirational talk on TED from Neil Pasricha, the author the 1,000 Awesome Things website.

His three A’s of Awesome are:

Attitude – life never goes to plan, but whatever life deals us we need to grieve and then face the future, take baby steps and move on
Awareness – embrace your inner three year old and see the world as if you are seeing it for the first time
Authenticity – be you and be cool with it, follow your heart and put in yourself in situations that you love

Derek Sivers on TED

Craig Smith — Mon, 22 Apr 2013 03:02:15 +0000

Watched a couple of short, unrelated videos on TED today from entrepreneur Derek Sivers.

When starting a movement, it takes a leader but the first follower is actually an underestimated form of leadership in itself. … The first follower is what transforms a lone nut into a leader! There job is to make it OK for others to join and to make it more safe.

Whatever brilliant ideas you may have or hear, the opposite may also be true. He gives the example of naming streets in Western culture, but blocks in Japan and how eastern doctors get paid for keeping you healthy, not treating you when you are sick.

Keep your goals to yourself because telling someone your goal makes it less likely to happen.

Tech Connect 2013 Brisbane Review

Craig Smith — Sat, 20 Apr 2013 02:31:52 +0000

With thanks to my very good friends at SlatteryIT, I headed off to Tech Connect 2013 in Brisbane this week to network with the Brisbane startup community.

Brisbane Lord Mayor Graham Quirk kicked off the day by reaffirming the Digital Brisbane strategy which already has seen the appointment of a Chief Digital Officer, a visiting entrepreneurs program and a strategy to attract more startups in Brisbane. He was keen to see more success stories in Brisbane, following on from start ups like Halfbrick, the inventors of Fruit Ninja.

Here are my notes from the sessions.

Enabling Entrepreneurship

Tyler Crowley is the first speaker to be brought to Brisbane as part of the visiting entrepreneurs program. Tyler is a well known and respected entrepreneur, best known to me as the co-host of the This Week in Startups podcast. I am not sure if there was meant to be any direction to this session, but it turned out to be a rambling question and answer session.

bring awareness to the community by getting people to tweet for being at an event – you will be surprised how quickly the city will get recognised
startups tend to congregate in the same area – in San Francisco it is around the Twitter office, in Palo Alto it is around University Avenue and in Los Angeles it is around Santa Monica, places that have startup centres benefit due to the cluster effect, cities like Stockholm are suffering because of a lack of this
River City Labs is probably currently the nexus of the community in Brisbane
the crowd funding model is still on the horizon and should be awesome for startups outside Silicon Valley, AngelList just got approval to have a crowd funding model from the SEC in the last week
another company getting acquired in the next 6 months will really put Brisbane on the map
attracting VCs – LA does content very well, San Francisco does social networking very well, so attract the kind of startups to the industry that you do well and get that message out
Brisbane has incubators like River City Labs (private) and ilab (government / university)
documentarians are important – TechZulu in LA and Scobleizer in San Francisco – provides a window to everyone outside, TechZulu is a great model, it took two years as a labour of love until it became profitable, the mainstream media follows when it becomes popular and it will explode
Brisbane is in the frustration phase of funding and media coverage – they will take notice when they become embarrassed by the success of startups and documentarians – currently at the tipping point, it is inevitable!
if your city had a blank canvas – getting a nest is important, support the documentarian, support angel events, support local meetups and events!, hold regular monthly events, calendars and job boards, strategy to attract outsiders to get the “Apple Store effect”
This Week in Startups – is the global meeting place to inspire people
build a startup map of Brisbane, one exists of Australia, maintain a database like CrunchBase
it is time for the banks to wake up and support startups like Silicon Valley Bank who are now spreading as the major banks are asleep at the wheel, there are opportunities for supporting industries to step up

Think Big!

Matt Barrie is the creator of Freelancer, which is the worlds largest outsourcing marketplace. I was really looking forward to seeing this talk and it did not disappoint! His presentation is also available online.

software is eating the world – the biggest bookstore in the world is digital (Amazon), Scrapbooking (Pinterest), Evernote, maps, music, yellow pages, fashion, money, real estate, jobs, etc, etc, etc…
66% of the worlds population are yet to join the Internet
demographics are changing and aging – lots of opportunities in this space as well
lots of online learning opportunities – you can design logos easily via Envato, Stanford University had 170,000 online students enrolled in an Artificial Intleligence course that normally attracted 250 people and the highest achievers were outside Harvard, there are also options like Coursera and Khan Academy amongst others
created Freelancer.com – we are now a service economy, the world is becoming very globalised, crowd sourcing (outsourcing has now turned to crowd sourcing eg. logo design)
Exposé the Freelancer.com logo! – crazy pushing the boundaries of crowd sourcing, also Kickstarter and the Pebble Watch – wanted $100,000 to build, raised $10 million!
Kickstarter funds more projects in arts than the US government, the next big thing is musc
The World is Flat
parabolic growth comes from distribution firehoses eg CityVille growth in Facebook, Viddy for reading news in Facebook, Google, Reddit
you need to strike early, before the idea gets crowded eg. games in the AppStore like Angry Birds who owned the market early
the new metric is growth – referrals are extremely important – see Startup Metrics for Pirates

all the software you need is free or cheap
Reddit.com ha a sub-site for everything
sites like RetailMeNot started with $30, Digg started with $60
the first dotcom bust was due to bad business models and a strong reliance on advertising, but in reality we are still in the original boom
Zynga – 96% of users don’t buy anything, the 4% that bought a cow to impress thir friends raised them $1.2 billion
many companies are not ready for growth, a mess internally and financially
there is lots of potential to replace people with algorithms and insights
in Australia we need to find a way to build technical businesses in the financial sector, like we do for mining
enrolments in engineering is down 60% in the middle of a technology boom, we need to start seeding interest back at school level
any job that can be described by an algorithm can be turned into software
Australia is a good place to base a startup, easier to hire people and start a network, but our exchange rate is crippling and if it rises it could become a major problem
you can build a big business targeted at the local market (eg Realestate.com.au), but always think global
Mary Meeker presentations should be used more in presentations

Money To Grow

This panel included John Hummelstad (Ephox and Concept Safety Systems), Sean Teahan (Nimble) and Doron Ben-Meir (Commercialisation Australia).

options include borrowing from friends, earning a buck first and investing your own money, earning from the bank (usually $2 million and up), funding by credit card, selling something, grants and R&D concessions, pay in 60 / collect in 30 days, angel network, information memorandum by getting close to OEM’s particularly those who you might potentially sell to, Venture Capital but this is decling, crowdsourcing
fund like minded companies to work closely with you
relationships at a strategic level are hard, but can bring rewards in the long term
CFIMITYM – “cash flow is more important than your mother”, business owners are awake at 2am worrying about cash
lean startups work very well for technology types of businesses, cash hungrier models need to exist because we still need to build products like iPads
figure out who in the supply chain cares about your type of business – they are good areas to look for investors
the large amount of successful businesses do not have venture capital funding – should only consider this if it brings value
essential that you break every rule in private funding that you can’t break in the public market
Australian Government has uncapped 45c / dollar R&D tax incentives (quarterly in arrears), then you move to incentives from Commercialisation Australia
Enterprise Connect is great way to take your business through the washing machine – your business needs to be able to stand up to audit
getting a commercialisation grant – it is your onus to prove that your invention works, once that is proved the commercialisation then needs to be tested
make sure when meeting potential funders that you can answer how you are going to solve their problem, also make sure you know all about them, use tools like LinkedIn and be educated, it is just courtesy
important to have front foot sales to fuel the fire but most importantly to get validation from the customer base, it also builds credibility by reinvesting your profits, biggest issue with technical companies in Australia is there an aversion to being a saleman, it is all about selling and if you are not prepared to do this then don’t start!, you are selling yourself not the product
selling is learning – you need to learn what your customer wants and your value proposition

Accelerating Growth

This panel included Natasha Rawlings (StreetHawk), Ric Richardson (inventor of software activation amongst many other thing) and Steve Baxter (River City Labs). Ric mentioned that he gets lots of attention from his appearances on Australian Story (The Big Deal and A Done Deal).

your first role is not to be the CEO but the Chairman of the Board (looks at the business to ensure they have the ideal CEO and are delivering to plan)
find the right people and partner with people who have done his before and hold them to their agreements
the right investors can bring you the introductions to partners, even if they decide not to invest in you
always deliver a good product and don’t piss the customer off – service is still important
raising equity starts with a plan – do this only when you need the funds, it should be the last resort, ensure you have a capitalisation (cap) table so you can understand what will happen to your equity – start with 30% for founders, 30% for management and 30% for investors
always start a business by looking at what it will look like when it is finished
Stanford University has a useful entrepreneurial course, be disciplined when following the Lean Startup model and have a plan
build a better prototype and often it will sell itself, other people will tell you quickly what it is worth
network deeply, meet people twice, ask questions even the ridiculous ones
investors are there to support and provide leadership, when you start pulling out agreements you know things are going wrong, like to know that they have listened

Setting Up for Global Success

This panel included Brendan O’Kane (OtherLevels), Jeremy Colless (Artesian Venture Partners, which was spun out of ANZ) and David Israel (UniQuest)

base yourself close to your prospects
important to think global from day one, particularly in the technical field, be worlds best rather than Australia’s best
take advantage of the Australian talent spread across the world, utilise international students particularly those from north of Australia

Building Value

This final panel included Anne-Marie Birkill (OneVentures), Bob Waldie (Opengear) and Steve Baxter.

people are cheap – premium prices do not work, people care about price
service is key – give good service
businesses are not charities, lifestyle is not a sustainable currency, you need to make money
ideas are not traction – get off your arse and learn what you don’t know
when looking for value, you are looking to triple an investment
success is building a valuable, non-charitable business, a second round of investment is not success
don’t think you can take a great technology idea to a crappy service industry eg taxis – they are not interested
make sure you formalise arrangements, in case things go bad, write down the exit conditions and make sure you are aligned

Overall a great day of presentations, panels and meeting new and interesting people in Brisbane technical and startup community.

Scrum Australia 2013: Scrum Masters: The Full-Time Role Conundrum

Craig Smith — Sun, 14 Apr 2013 03:13:29 +0000

My presentation from Scrum Australia 2013 called “Scrum Masters: The Full Time Role Conundrum” is available on Slideshare.

The Scrum Guide defines the Scrum Team as being made up of three primary roles: Product Owner, Development Team and Scrum Master. The role of the Scrum Master is often misunderstood, particularly by management, so often questions start to get asked such as “can I share the Scrum Master across teams”, “can the Scrum Master do Project Management” and “can the role be rotated”?

In this talk we will take a look at some of the misconceptions around the Scrum Master role, discuss how it fits into the organisational structure and tackle the age-old question of whether the Scrum Master is a full time role. We will also look at an improvement plan template to help Scrum Masters improve in their role.

Some of the comments from Twitter included:

@smithcdau thx for the nice words about being #Ri /cc @AgileRenee—
Matthew Hodgson (@magia3e) April 10, 2013

Is a #scrum master a full time roll yfrog.com/ock0rpwj with @smithcdau full room! #auscrum—
Renee Troughton (@AgileRenee) April 10, 2013

At the end of the day, our purpose is to deliver good software. Everything else is a mean to an end. Cc @smithcdau #auscrum—
Herry Wiputra (@hwiputra) April 10, 2013

Shout out to @smithcdau, @magia3e and @lpaulslonghurst for excellent #auscrum presentations. It was great learning from you—
Michael Rembach (@mrembach) April 11, 2013

Twitter Summary March 2013

Craig Smith — Sun, 14 Apr 2013 02:49:52 +0000

A summary of my Twitter posts from March 2013:

2013-03-22 06:07:13
@yow_oz @codemiller @kevinoneill Actually we did video it in Melbourne, but I am not sure how good the audio quality is…

2013-03-21 21:51:33
@AgileRenee great conversation as always… Victory is mine!

2013-03-21 21:47:34
RT @tottinge: Too many people think their job is to survive this week, when it has always been to build a better “next week.”

2013-03-21 08:21:15
@AgileRenee making headlines I suspect…

2013-03-21 08:15:53
Enthusiastic crowd at Sydney #yownight with @kevinoneill @Optiver (@Optiver w/ 4 others) [pic]: http://t.co/5zKP2hYVwu

2013-03-21 01:33:45
Wheels down SYD (@ T2 Multi-User Domestic Terminal w/ 3 others) http://t.co/YxacyOJIzM

2013-03-20 23:51:46
Agile is great but don’t bet lives on it… http://t.co/jPIMoOo36m Hmmm…

2013-03-20 23:20:23
Off to Sydney for 1. #yownight 2. Check up on @agilerenee (@ The Lounge (Virgin Australia) – @virginaustralia) http://t.co/VFqL0bUyjX

2013-03-20 09:23:23
Great turnout for Brisbane #yownight with @kevinoneill @suncorp (@ Brisbane Square w/ 3 others) [pic]: http://t.co/6srL1jnEDj

2013-03-20 01:07:08
Wheels down BNE #bneontime (@ Brisbane Domestic Terminal – @brisbaneairport w/ 3 others) http://t.co/EVaVjReRWZ

2013-03-19 23:16:37
…and back to Brisbane, for the next #yownight! (@ Virgin Australia Lounge w/ 5 others) http://t.co/xhXmdAiRpI

2013-03-19 07:31:31
Full house at @yow_oz Night Melbourne with @kevinoneill (@ Jasper Hotel w/2 others) [pic]: http://t.co/dozuvaBaB1

2013-03-19 07:28:48
I’m at Jasper Hotel (Melbourne, VIC) http://t.co/0TzVMKwvte

2013-03-19 00:15:46
Wheels down MEL (@ T3 (Domestic – Virgin Australia & Regional Express) Terminal) http://t.co/fblN33fiLW

2013-03-18 21:49:19
@lisacrispin you are welcome here anytime!

2013-03-18 21:43:32
RT @AgileRenee: #Agile is an umbrella term: http://t.co/emLZWe3SDi

2013-03-18 21:40:03
@lisacrispin yes, 2 hour flight, quick overnight trip…

2013-03-18 21:33:38
24 hour trip to Melbourne for @yow_oz Night (@ The Lounge (Virgin Australia) – @virginaustralia) http://t.co/f8RKWc9T4q

2013-03-18 02:22:03
@markmansour Thanks Mark, see you there!

2013-03-17 10:11:20
I am watching Formula 1, Rolex Grand Prix of Au… (S2013E03). http://t.co/4b0ac4sxkw #F1

2013-03-15 14:34:55
The @virginaustralia website will still not let me book a flight, goes into endless loop. Can’t find anyone interested in fixing it either..

2013-03-15 11:40:18
@jimmyjazz68 can’t comment on the system, but DM me ASAP and well get your submission into the system another way

2013-03-14 00:34:03
Ahhh crud, now I need to find a replacement for Google Reader that works on a variety of platforms… #savegooglereader

2013-03-09 00:31:05
RT @AgileRenee: Purpose driven versus opportunistic #Agile coaching: http://t.co/HQRUiZQRx2

2013-03-08 11:48:55
RT @JoshuaDowling: This is a classic kids… “@RedL1on: Photo: Read it upside down. http://t.co/vTj4jYrVIk”

2013-03-08 07:56:30
RT @yow_oz: Last minute YOW! Lambda Jam Submissions flowing in! You still have time to submit your proposal! Last chance! http://t.co/bX …

2013-03-06 07:48:01
RT @teale: RT @LynnWallenstein: Protip: Always stripe your tables on the even rows, that way if you only have one result it doesn’t look …

2013-03-06 05:28:37
RT @yow_oz: Our first YOW! Update of 2013 is heading to your inbox! http://t.co/aYkjFdFh1a

2013-03-06 05:27:28
RT @rubyconf_au: The first batch of RubyConfAU 2013 videos are up! https://t.co/KyLVhJmwpV ^Keith

2013-03-06 05:26:25
RT @yow_oz: A BIG! YOW! Wednesday! #yow2012 videos just uploaded: Don Reinertsen @mtnygard @mmcgrana & Bryan Beckman / @headinthebox…

2013-03-06 01:00:16
RT @MikeOrzen: 80% of meetings are non-value added because they are spent reporting conditions that should already be visible and access …

2013-03-06 00:59:16
Windows 7/8 Quick tip: Hold shift when you right click a file and you get a menu to copy the full path to the clipboard #useful

2013-03-05 15:24:39
Email has ruined the art of licking… (The Late Late Show with Craig Ferguson S09E11) http://t.co/6wC1n5TqXe #LateLateShow

2013-03-04 00:17:11
RT @LarkosWB: Thinking about poor old @michaelcarus0, gets Norton on his machine, then ends up having to uninstall Windows anyway. #v8sc …

2013-03-03 03:26:13
‘The Simpsons’ Do the ‘Harlem Shake’ … D’Oh! We Mean Homer Shake http://t.co/D0z835yiBu

2013-03-03 01:41:45
RT @alexeykri: “if your code is crap, stickies on the wall won’t help” @henrikkniberg #scrum #kanban #agileindia2013

2013-03-03 09:58:40
V8 Supercars Race 2 Adelaide: Some good racing today. Whatever you think of @shanvevg97, you have to admit that was good winning drive #v8sc

2013-03-02 09:31:17
RT @redbullracingAU: That’s an incredible 90 wins for @craiglowndes888, putting him equal with Mark Skaife #90andcounting #givesyouwings …

2013-03-02 09:20:44
V8 Supercars Race 1 Adelaide: After all the changes, the cream has risen to the top. Well done @craiglowndes888! #v8sc

2013-03-01 12:58:15
The Bear Essentials of Safety –> http://t.co/UkknIlg8yW Nobody does airline safety videos like Air New Zealand! #airnzbear

2013-03-01 07:43:01
@brown_note b (it might explain some of the reasons for a)

Twitter Summary February 2013

Craig Smith — Sun, 14 Apr 2013 02:41:51 +0000

A summary of my Twitter posts from February 2013:

2013-02-28 06:29:12
Peter Saddington on @agilescout & Leveraging Human Capital (my latest interview for @InfoQ) http://t.co/sMJ4IbzvPv

2013-02-28 06:26:50
RT @InfoQ: Interview: Peter Saddington on Agile Scout & Leveraging Human Capital http://t.co/klpL9DVVUe

2013-02-28 06:26:41
RT @InfoQ: Article: Refactoring Legacy Applications: A Case Study http://t.co/1PQXL6aDTC

2013-02-28 05:49:36
RT @yow_oz: Time for some more #yow2012 videos! In the latest set, learn from @ronbodkin, @jeffpatton, Michael Ficarra & Jafar Husain…

2013-02-27 04:11:37
I just unlocked the “Campus Explorer” badge on @foursquare for checking in to 10 different places on campus! http://t.co/fXGMnIjTZT

2013-02-26 09:34:58
Why work perks can backfire –> http://t.co/4sMydVnZ0V

2013-02-25 04:42:17
25 Professional Comparison Tables –> http://t.co/IELQtQf8SR

2013-02-24 23:50:09
Interview and Book Review: Enterprise Software Delivery (my latest article for @InfoQ) –> http://t.co/pT5to9Y6tP http://t.co/pT5to9Y6tP

2013-02-24 23:47:04
RT @InfoQ: Article: Interview and Book Review: Enterprise Software Delivery http://t.co/t5rgmQ9R

2013-02-23 10:07:03
Wheels down BNE (and unusually early) (@ Brisbane Domestic Terminal w/ 3 others) http://t.co/oD7DsiATh5

2013-02-23 07:46:10
@codemiller being able to even book a flight would be a nice start. Apparently @virginaustralia say its a known problem

2013-02-23 07:40:52
Heading home (@ Virgin Australia Lounge) http://t.co/uPRGY1Ed2k

2013-02-23 04:29:13
Why do niche software vendors cripple their software with draconian manual licencing procedures. Todays #fail by @smartlibraries & @feig_de

2013-02-21 23:37:35
RT @genlevel: This ruby thing will never take off #rubyconf_au http://t.co/ip9THt4Nwf

2013-02-21 22:34:44
Day 2 of Ruby Conf Australia, full house… (@ Jasper Hotel w/ 5 others) [pic]: http://t.co/NCnyOYZhWl

2013-02-21 07:06:51
RT @chendo: How @tenderlove thinks how Melboune was named: #RubyConf_au http://t.co/s4k6u8vPwf

2013-02-21 00:29:10
GreenHopper Tip of the Month: How To Indicate you are Waiting http://t.co/ULtVe8e9Ra Not as good as classic functionality, but a
workaround

2013-02-20 22:12:34
Time to get some Ruby Wisdom! @rubyconf_au (@ Jasper Hotel w/ 10 others) http://t.co/l50aiHgqUo

2013-02-19 02:36:17
Wheels down MEL (@ T3 (Domestic – Virgin Australia & Regional Express) Terminal) http://t.co/MMF4Nbxj

2013-02-18 23:49:36
Bound for Melbourne for Ruby Conf… (at @virginaustralia) http://t.co/veAGraMV

2013-02-16 11:16:17
Dilbert on daily stand-ups: http://t.co/WKeCW2aD

2013-02-15 13:21:58
Firefighters don’t run into a fire, they walk… (watching NCIS, Gone S10E08) http://t.co/fI1ovlI4 #NCIS

2013-02-15 05:17:52
RT @yow_oz: Three new #yow2012 presentations now online for your Friday commute! Talks from John-Henry Harris, @mtnygard & @abedra h …

2013-02-15 02:34:29
Wow, still unable to book a @virginaustralia flight online since system upgrade, had to go through 25 minute call centre process #fail

2013-02-15 01:19:35
RT @SJBartholomaeus: All four new-generation V8 Supercars lined up together at Sydney Motorsport Park #V8SC http://t.co/6cc6tbuy

2013-02-14 02:26:29
Variable Speed Retiming in Final Cut Pro X –> http://t.co/Bg1feX7M Great for when synchronize clips doesn’t work out so well.

2013-02-11 01:56:56
smithcdau: RT @yow_oz: Four great #yow2012 presentations now online! The @headinthebox keynote & talks from @fgeorge52, @mjpt777 & @kurt ht …

2013-02-06 08:36:15
smithcdau: At Agile Brisbane meetup, @adrianlsmith leading discussion on Agile & Innovation (@ Microsoft) http://t.co/5hUOppdR

2013-02-05 06:16:41
smithcdau: @RedlandCouncil How about clearing the walkway on Old Cleveland Roast East that runs alongside the transfer station?

2013-02-05 05:38:50
smithcdau: RT @DeadlyApps: It is hard to believe that scaling agile is something people want to look outside the agile manifesto for. Decouple your …

2013-02-05 05:14:40
smithcdau: RT @leonardo_borges: Have you submitted your talk for @LambdaJam Australia yet? There’s great talks coming through! Where’s yours? CFP: …

2013-02-04 11:56:15
smithcdau: RT @Fraank_Oceaan: Window washers at a children’s hospital - This deserves endless retweets http://t.co/lYspZV4Y

2013-02-04 11:52:53
smithcdau: @erik_petersen I assume you are going? I am tempted, but hadn’t made a firm decision.

2013-02-04 11:41:47
smithcdau: Rule #38: Your case, your lead (watching NCIS, Phoenix S10E03) http://t.co/128DKMDf #NCIS

2013-02-04 04:27:55
smithcdau: RT @rowanb: Announcement: Early-bird tickets now available for #Scrum #Australia 2013! Limited allocation so get in quick http://t.co/bL…

2013-02-03 23:58:15
smithcdau: Mythical Man Month – The Cliff Notes –> http://t.co/bEv2k1RS

2013-02-02 12:29:50
smithcdau: Starting to get the hang of Final Cut Pro, 5 days before my Trial Version expires…

2013-02-02 00:43:33
smithcdau: @spidie Fragile means they throw it around more. It also sometimes means they leave it to last

Twitter Summary January 2013

Craig Smith — Sun, 14 Apr 2013 02:32:50 +0000

A summary of my Twitter posts from January 2013:

2013-01-31 10:16:53
smithcdau: Rule #8: Never take anything for granted (watching NCIS, Rekindled S09E21) http://t.co/XRxE94HL #NCIS

2013-01-31 04:51:42
smithcdau: @benarnott Sure thing!

2013-01-31 04:50:03
smithcdau: @benarnott Actual experiences

2013-01-31 04:37:13
smithcdau: @benarnott Yes, that was a good campaign. Heard mixed reports about reality though…

2013-01-31 04:05:25
smithcdau: Paperman –> http://t.co/dGOSUYdz

2013-01-31 00:29:15
smithcdau: RT @InfoQ: Article: Agile Podcasts: A Great Learning Alternative http://t.co/MGMi95YJ

2013-01-27 08:12:59
smithcdau: There goes the power at Wellington Point #bigwet

2013-01-27 07:24:24
smithcdau: @PeterSellars With the amount of rain I could have sworn you were back in the country!

2013-01-26 05:23:47
smithcdau: Just finished a second review of Making Sense of NoSQL for @manningbooks

2013-01-26 01:25:47
smithcdau: RT @yow_oz: Watch this space! Videos from YOW! 2012 will progressively be released from next week via @eventerHQ
http://t.co/Q2Egcy2I

2013-01-23 03:23:01
smithcdau: @melissa_loh ugh, I need to do that too. Let me know how easy it is

2013-01-23 03:35:13
smithcdau: @smamol the person with the item is the lender and the person who doesn’t have the item is the borrower (think of a library…)

2013-01-21 09:23:03
smithcdau: Wheels down BNE (@ Domestic Terminal w/ 2 others) http://t.co/ML7fRjwN

2013-01-21 06:25:36
smithcdau: Homeward bound… (@ Qantas Club) http://t.co/aemMVqx5

2013-01-18 04:18:35
smithcdau: What is it with software companies keeping drivers and client updates under lock & key & only with a password from a third party?

2013-01-17 05:12:54
smithcdau: Wheels down MEL (@ T1 (Domestic – Qantas & Jetstar) Terminal) http://t.co/ItNKxVrq

2013-01-17 02:38:23
smithcdau: Destination: Melbourne (@ Domestic Terminal) http://t.co/WulAqiMc

2013-01-16 04:25:23
smithcdau: Enterprise Software Delivery (Book Review & Summary) –>http://t.co/Bu4bu8mE

2013-01-15 10:36:18
smithcdau: @VirginAustralia Unfortunately I needed to book before COB so after hours of trying I had to venture to the opposition…

2013-01-15 08:39:37
smithcdau: @andrewfnewman Don’t disagree about the project planning. Was more questioning that testing was probably left to the end.

2013-01-15 06:31:55
smithcdau: @andrewfnewman Yes… And they reported it went swimmingly well… That’s waterfall rollout for you…

2013-01-15 06:28:24
smithcdau: Well a #fail for new @virginaustralia booking system. Falls over at step 1, looks like I will book with @qantasairways instead…

2013-01-14 15:49:31
smithcdau: Visual Resume based on LinkedIn data –> http://t.co/koWBny6V

2013-01-14 12:36:44
smithcdau: Rule # 42: Don’t ever accept an apology from someone that just sucker-punched you (NCIS S09E16) http://t.co/SvmkS7zk #NCIS

2013-01-14 01:30:49
smithcdau: RT @dibblego: LambdaJam 2013 a conference for functional programmers, in Brisbane, Australia. http://t.co/Pkdgx4Am betting it’s as aweso …

2013-01-13 11:58:35
smithcdau: @talios So Boss is worth watching then?

2013-01-13 03:57:04
smithcdau: Was in Hawaii and saw shooting of this episode (watching Hawaii Five-0, I Ka Wa Mamua S03E06) http://t.co/GyCklwa1 #H50

2013-01-10 12:00:02
smithcdau: Exporting Highlighted notes from iBooks –>https://t.co/ApdZxTUM

2013-01-10 23:19:19
smithcdau: RT @Aaron_Griffith: Planning poker should be called planning roulette. Must be lucky enough for your estimates to match reality. Stakes …

2013-01-07 04:37:58
smithcdau: @lisacrispin Tell ‘em they’re dreamin’!

2013-01-07 04:34:32
smithcdau: @lisacrispin So much serenity!

2013-01-06 09:54:10
smithcdau: Karma… (watching CSI: Crime Scene Investigation, Homecoming 1S12E22) http://t.co/OnqgzOW9 #CSI

2013-01-05 08:12:56
smithcdau: This is taking me back, like riding a bike… http://t.co/RCYEPZgs

2013-01-04 11:26:36
smithcdau: Good movie, the opposite view to Moneyball (watching Trouble with the Curve) http://t.co/gQcqbvsf #TroubleWithTheCurve

2013-01-04 11:22:07
smithcdau: Wheels down BNE (@ Domestic Terminal w/ 4 others) http://t.co/0ZUB8nbr

2013-01-04 08:27:54
smithcdau: Heading home, away from the heat wave! (@ T1 (Domestic – Qantas & Jetstar) Terminal) http://t.co/NF1rxgwz

2013-01-04 07:46:37
smithcdau: 41 degrees at 7pm in Melbourne… This is absurd… http://t.co/ZW14LVqJ

2013-01-02 09:35:17
smithcdau: Lovely evening view of Melbourne from Williamstown (@Williamstown) [pic]: http://t.co/Us56qMml

2013-01-01 22:20:03
smithcdau: Wheels down MEL (@ T1 (Domestic – Qantas & Jetstar) Terminal w/5 others) http://t.co/hIWOxpyF

2013-01-01 19:51:04
smithcdau: RT @SpongeBob: Happy New Year everybody! My New Years resolution: absorb the good stuff, and let the bad stuff pass through my porous body.

2013-01-01 19:29:28
smithcdau: Didn’t take long to get my first air miles of the year… (@Domestic Terminal) http://t.co/fYxjMjTm

Twitter Summary December 2012

Craig Smith — Fri, 01 Feb 2013 00:41:11 +0000

A summary of my Twitter posts from December 2012:

2012-12-30 07:45:59
smithcdau: @Lisa_Cumes @melissa_loh Mmmmm…. American Crispy Bacon *drool*

2012-12-26 11:09:09
smithcdau: @michaelneale Yes, get something else, they are useless. For M.cbook, I ended up with a MicroBook II as a USB amp

2012-12-22 15:07:40
smithcdau: I like my chocolate in bar form… (The Late Late Show with Craig Ferguson S08E181) http://t.co/oBshZjAm #LateLateShow

2012-12-21 06:00:09
smithcdau: I came and I conquered @mailchimp…

2012-12-20 13:39:27
smithcdau: RT @GOTOchgo: GOTO speaker Mike Lee’s Lemurs Chemistry app is out http://t.co/WtkFBjz8

2012-12-19 03:39:16
smithcdau: Where has customer service gone? Today I’m calling out poor service from MBE & @suncorpbank #fail

2012-12-19 01:24:54
smithcdau: DJ Earworm Mashup – United State of Pop 2012 (Shine Brighter): http://t.co/UzffxPfo

2012-12-18 08:05:41
smithcdau: Listening to @joelpob at Brisbane .NET User Group (@ Microsoft w/ 2 others) [pic]: http://t.co/uC4w7vVA

2012-12-18 01:00:02
smithcdau: RT @fogus: As Scala gets bigger there will be more and more people who couldn’t care less about mastering it.

2012-12-17 14:36:56
smithcdau: Stop thinking about fun… and have it! (watching The Simpsons, A Totally Fun Thing Th… S23E19) http://t.co/nPILEqft #TheSimpsons

2012-12-15 06:22:10
smithcdau: @magia3e Only the mini… but now I have caught the bug again…

2012-12-15 06:06:38
smithcdau: Just built a LEGO X-Wng Starfighter. Had forgotten the fun of LEGO (and how good an example of manual writing they are)

2012-12-14 04:57:09
smithcdau: RT @WoodyZuill: A User Story is a placeholder for a conversation we’ll never have because we’ve discovered the real need by delivering e …

2012-12-13 01:08:40
smithcdau: Time for @theagilepodcast with @agilerenee & @svennotnop (@Brew) http://t.co/VfvDLBsK

2012-12-12 09:26:13
smithcdau: Wheels down BNE (@ Domestic Terminal) http://t.co/50qchhsf

2012-12-12 06:37:35
smithcdau: @talios new car? What did you get?

2012-12-12 05:47:09
smithcdau: Heading home (delayed)… (@ Virgin Australia Lounge) http://t.co/bBveYvid

2012-12-10 10:43:39
smithcdau: Sheldon’s T-Shirts of The Big Bang Theory – Cool Infographics http://t.co/lGehAFUw

2012-12-09 00:50:21
smithcdau: RT @spidie: 350 more in just over an hour – come on Greg you can do it man! http://t.co/ybXBhUTU

2012-12-09 00:40:18
smithcdau: The Next Chapter http://t.co/xJSPAh3a

2012-12-09 23:33:16
smithcdau: @Lisa_Cumes I decided I don’t like being at home Here for a Xmas function..

2012-12-09 23:16:27
smithcdau: Wheels down MEL (@ T1 (Domestic – Qantas & Jetstar) Terminal w/3 others) http://t.co/p8ATSS8b

2012-12-09 20:29:18
smithcdau: Last trip of the year? Off to Melbourne… (@ Domestic Terminal) http://t.co/rMPy5QGc

2012-12-09 02:54:15
smithcdau: RT @angusscown: Greg did it. 10,000 pushups in 24 hours. http://t.co/HNOsbeXs raising money for haemophilia

2012-12-08 11:45:05
smithcdau: Adam Weisbart (@weisbart) on Agile Antipatterns and Tools to Make Agile Fun (my latest interview for @InfoQ) http://t.co/EKeXtGua

2012-12-08 03:40:31
smithcdau: Wheels down BNE (@ Domestic Terminal) http://t.co/9y4666YQ

2012-12-08 01:57:34
smithcdau: RT @InfoQ: Interview: Adam Weisbart on Agile Antipatterns and Tools to Make Agile Fun http://t.co/gbkbbeeb

2012-12-08 01:36:59
smithcdau: End of a great 2 week tour with the #yow2012 crew! (@ Virgin Australia Lounge) http://t.co/mMrAieOW

2012-12-07 05:46:01
smithcdau: RT @jchyip: It’s not deliver so fast that marketing doesn’t have a chance to change their mind but deliver so fast that they don’t have …

2012-12-07 02:36:08
smithcdau: Listening to workshop by the wizard of lean Don Reinertsen #yow2012 (@ Pullman Sydney Hyde Park) http://t.co/HZzagshK

2012-12-05 09:10:44
smithcdau: RT @jimmcslim: Dave Thomas calls it out: The 1st Lambda Jam Func. Prog. Conf. will be held in Brissy, coz they’re backward in Sydney &am …

2012-12-05 03:44:45
smithcdau: Wheels down SYD (@ T2 Multi-User Domestic Terminal w/ 8 others) http://t.co/jHzf5nOw

2012-12-05 02:16:36
smithcdau: The #yow2012 contingent is moving (delayed) to Sydney… (@ The Lounge (Virgin Australia)) http://t.co/leQrjs0P

2012-12-04 23:55:51
smithcdau: @hwiputra you’re welcome!

2012-12-04 23:51:24
smithcdau: RT @bmf: “How are you feeling?” “Terrified.” “Good.” The life of a speaker. #yow2012

2012-12-04 23:51:03
smithcdau: RT @rowanb: @codemiller: “Well done YOW! team – it was a first-rate event.” #yow2012 I totally agree. Was a challenging & inspiring …

2012-12-04 04:19:40
smithcdau: Introducing @kevlinhenney keynote at #yow2012 (@ Brisbane Convention & Exhibition Centre) http://t.co/ASZXzhV8

2012-12-03 01:59:52
smithcdau: RT @codemiller: “Start logging things. Log your state changes. Put it in a store somewhere. You never know how it might be able to be us…

2012-12-03 01:59:38
smithcdau: RT @codemiller: “I don’t know why but everyone knows SQL. If you give people read-only access to data they won’t bother you for reports. …

2012-12-03 01:59:22
smithcdau: RT @codemiller: “The elephant in the room is Hadoop…I wonder how many times that’s been used as a joke in a presentation…” @Kurt #yo…

2012-12-03 01:59:17
smithcdau: RT @codemiller: “Use a high-level language…like Pig or Hive. Figure out a way to do it.” @kurt #yow2012

2012-12-03 01:59:13
smithcdau: RT @jimmcslim: ‘Word Count is the Hello World of Big Data. I think we’ve solved that problem now.’ #yow2012

2012-12-03 01:59:08
smithcdau: RT @codemiller: “Make things easy to understand. If you have a bunch of MapReduce Java classes…your head’s going to explode.” @kurt #y…

2012-12-02 23:15:23
smithcdau: @spidie agreed!

2012-12-02 23:14:45
smithcdau: Kicking off #YOW2012 with Don Reinertsen keynote on Lean Batch Size (@ Brisbane Convention & Exhibition Centre) http://t.co/6NTzAGSx

2012-12-01 21:54:21
smithcdau: RT @yow_oz: #yow2012 @headinthebox getting prepped for this morning’s keynote http://t.co/HXZ0y2X9

2012-12-01 21:51:39
smithcdau: RT @delitescere: Speakers off to dinner #yow2012 http://t.co/dh3oxF7F

2012-12-01 21:51:21
smithcdau: RT @kurt: Hey look, a shark. At the Melbourne Aquarium for the Yow Melbourne speaker dinner. #yow_oz #yow2012 http://t.co/20NR1P0i

2012-12-01 03:09:46
smithcdau: Wheels down BNE (@ Domestic Terminal w/ 2 others) http://t.co/D22U2GxB

2012-12-01 00:40:29
smithcdau: Field trip with the #YOW2012 speakers to Brisbane (@ T3 (Domestic – Virgin Australia & Regional Express) Terminal) http://t.co/LDsJfvej

2012-12-01 00:36:49
smithcdau: I just ousted @tashstoodley as the mayor of The Sebel & Citigate Hotel on @foursquare! http://t.co/pkz543U0

Paperman

Craig Smith — Thu, 31 Jan 2013 03:59:08 +0000

A lunch-time view, Paperman is a new animated short film from Disney that has been animated for an Oscar. This story does not make much sense in a digital age of tablets and a paperless office though!