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User Driven Development Improve your development process focusing on the user David González @dggonzalez david@novoda.com

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Design Prototyping Scribbles Reviews Retrospectives User testing Beta releases Development Stakeholders

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Designers are also nice people “ - Sebastiano Poggi Android Developer at Novoda

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Paper prototyping is to find as much issues as possible before starting to develop

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Paper allows you to do and redo without fear of losing development time The Sun Mobile News - Aug 2014

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Scribbles are the minimum representation of an element

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public class FeedItemView extends AspectRatioView { private TextView createdText; private TextView categoryText; public FeedItemView(Context ctx, AttributeSet attrs) { super(context, attrs); } @Override protected void onFinishInflate() { super.onFinishInflate(); inflate(getContext(), R.layout.feed_item, this); createdText = findById(this, R.id.feed_text_created); categoryText =findById(this, R.id.feed_text_category); } } Create a custom view

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Iterate How do we do it from here?

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Split the user journey in as few steps as possible

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Guesstimate

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Acceptance criteria

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5 points Scribble implementation with local data Given I am a logged in user And I have previously saved an article When I navigate to My Articles Then I should see a list of articles

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3 points Loading screen Given I have internet connection When I navigate to My articles Then the date should be fetched from the API And I should see a loading screen

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3 points Empty screen Given I have no saved articles When I navigate to My Articles Then I should see an empty screen

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8 points Scribble implementation fetching data from API Given I have internet connection When I navigate to My articles Then the date should be fetched from the API And I should see a list of saved articles

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5 points Visual design items Given I see a list of articles When I navigate to My articles Then the list items designs should match specifications

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5 points Interaction with articles Given I have a list of saved articles When I tap on the article header image Then I should see a selected item

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8 points Response from API Given I have a list of saved articles When I swipe away one of the elements Then the remote item should be deleted And I should be notified of the deletion

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Design reviews It’s up to the design team to accept a visual design story

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Code quality

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Use Pull Request Builder and Thresholds in Jenkins to prevent Technical Debt

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Sprint reviews, retrospectives and demos

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Show what you achieved

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Be transparent about what’s missing

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Excite them about what’s coming

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Usability testing

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Acceptance criteria Define goals, what do you want to achieve?

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Pilot tests highlight problems early and save your user’s time

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Acceptance criteria Define action points, refine and test again

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Nightly releases

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Thank you! David González @dggonzalez david@novoda.com