What you did last summer?
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What you did last summer?

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Mariusz Nowostawski from dothinger team was talking at CodeCraft about his two summer projects: TabacooFree and DoThinger.

Mariusz Nowostawski from dothinger team was talking at CodeCraft about his two summer projects: TabacooFree and DoThinger.

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  • Outsourcing vs. CrowdsourcingStress unknown group, broadcast, problem solving, amatours, volunteers, professionals, Kudos. Stress on MUTUAL benefit.
  • 18th century chess automaton, The Turk, touring Europe and playing with Napoleon Bonaparte and Benjamin FranklinStarted November 2005, rewards from 1c to $10, tasks from 10min to hours, Targetted to programmers
  • Barry Boehm,s 1981 book, Software Engineering Economics, further studies, and SLOCCount framework by David A. Wheeler.

What you did last summer? What you did last summer? Presentation Transcript

  • CodeCraft meeting May 2012 Mariusz Nowostawski @praeteritio
  • About myself• Lecturer – Information science: telecommunications, AI, programming (software engineering), security, network administration, design, multi-agent systems• Scientist – Virtual machines and machine learning, evolutionary computing, self-evolving software, mobile and ubiquitous technologies, modeling life• Adventurer and others… – Running, mountain climbing, cycling, paragliding, etc.
  • Today’s talk Summer project 1 applied research Summer project 2scaffolding for doing things
  • A: How many?B: How many what?A: How many people smoked in cars?B: 3. There 78 cars and only 3 had smokers.A: Any children in the cars?B: No. There were no children.A: That’s good.
  • A: How many?B: How many what?A: How many people smoke in cars?B: 3. There 78 cars and only 3 had smokers.A: Any children in those cars?B: No. There were no children.A: That’s good.(pause)A: Why do people smoke?
  • Person A
  • A: How many?B: How many what?A: How many people smoke in cars?B: 3. There 78 cars and only 3 had smokers.A: Any children in those cars?B: No. There were no children.A: That’s good.(pause)A: Why do people smoke?
  • Smoking debateHow many people smoke in cars?
  • Approx. 16,000 cars checked one city, 4 locations 2 weeks, 4 data collectors fixed protocol 2.0 – 6.4 % of smokers (depending on the area)
  • Crowdsourcing
  • • Wikipedia• Community based designs: threadless.comwww.local-motors.com (The Forge)• Community based voting: iStockPhotos• www.microtask.com – paper form transcribing• …• reCAPTCHA. Stop spam. Read books.• Voice-to-Text (cloud-based, like Google)• …
  • Counting smoking in cars(summer project 1)
  • GLOBALink• Vimal (Wellington)• Hamish (Otago)• mid-October, kickstart• 3 skype meetings, drafting project specs• GIT repository, initial prototyping• Work on Android application continues…
  • TobaccoFree• December – Androd App ready• January – web app ready, primitive and buggy• Mid February, initial “launch”• Working on iOS version in spare time• Localization• Bug fixing, new functionality, protocol
  • Summer ProjectSource Line of Code:2136 Android Java1205 iOSObjC1181 Web PythonTotals grouped by language:Java: 2136 (47.24%)ObjC: 1205 (26.65%)Python: 1181 (26.12%)
  • TobaccoFree.nzdis.org
  • “Big” software project• Various software engineering skills• Project management skills• UI design, interaction design, specs/analysis• Deployment and Testing• Database skills (no-SQL, mongoDB backend)• Java & Android programming• Web apps, RESTful APIs, HTML, CSS, JavaScript• Google Maps integration
  • Lessons learned• Full stack vs. Glue frameworks• No-SQL: the good and the bad• Frameworks integration• Multi-source-language development, 3 core languages, plus JavaScript.• Localisation, coordination, updates• Testing, bug fixing, growing codebase, managing complexity
  • “Big” software project on $5k budgetTotal Physical Source Lines of Code (SLOC) = 4,522Development Effort Estimate: Person-Months: 11.70Schedule Estimate, months: 6.37Estimated Average Number of Developers = 1.84Total Estimated Cost to Develop = $ 131,746(assuming average salary = $56,286/year)
  • Deployment and Testing• Public key cryptography, certificates• Publishing, setups, procedures• Bureaucracy, administrative tasks (considerable)• Funding: grant applications
  • Myths“Oh, that’s easy. I can hack it in a week.”“We just hire a programmer and it all will be done in no time.”“Students will help. Students can do that.”
  • Further research• Crowdsourcing: incentives, management• TobaccoFree: smoke counting, models, stats• Software engineering and curriculum rethink• People will help to collect data
  • Students and participants• Larger participation? Incentives would help?• Is building up skills an incentive enough?• Skills. Tasks scope.• Vertical vs. Horizontal specialization.
  • Summer project 2
  • Startups• Topic for another talk – World 45, private consulting (praeteritio) – Ngarua• Tomek (Wroclaw, Poland)• Murad (Helsinki, Finland)
  • Lapland
  • Motivation• System for active lifestyle. example: new place, holidays• Social networks. Actually, open social networks. example: email• Innovation, agility, progress. imagine that• Research data. example: personal Science Lab• People behavioral data FOR PEOPLE (not for sale) Why people do what the do?
  • We need to start somewhere• Active lifestyle.• Open and transparent.
  • do thinger• Doing things with friends vs.• Doing things with anybody vs.• Doing things on your own• A “different” social/non-social network
  • dothinger.com
  • Things
  • Threads
  • What have I done last week? go and check on DoThinger
  • doThinger• We do not know yet where it is going – Tell us: you can and you should• Event’s/trips photo sharing – TomekDoing something fun, learning, exploring things Dunedin deserves it’s own Social Networking site
  • Thank You Questions?Discussion, feedback, comments welcome @praeteritio mariusz@ngarua.com