Jason Wieringa jwieringa

Step 1

Identify what the business goal is for building software.

Business goal

Increase repeat sales to existing customers by 50% over the next 12 months

Step 2

From the business goal, derive the scope of the feature(s)

While running bundle install on a project, I ran into the following error:

ArgumentError: /Users/jason/.rbenv/versions/1.8.7-p358/lib/ruby/site_ruby/1.8/rubygems/requirement.rb:72:in `parse': Illformed requirement ["#<YAML::Syck::DefaultKey:0x11418fa78> 0.2.1"]
An error occurred while installing power_enum (0.6.2), and Bundler cannot continue.
Make sure that `gem install power_enum -v '0.6.2'` succeeds before bundling.

According to Bundle, it was getting hung up on an illformed Gemspec:

Scrappy Academy*

** Disclaimer: All subject to review, change, and overall better scrappiness **

Goals

Self study group that follows hungry academy course
Pick one open source project to contribute to
Invite Ruby community members to weekly meetings as mentors

Values

Using and Understanding Models

Understand Patterns
Predict Points
Produce Bounds

Range of possibilities

Retrodiction

What was the past like?

Predict Other Stuff

Model showed another planet present even though it couldn't be seen

The Test of a Hypotheses: The Logic and Force of Auxiliary Hypotheses

Crucial tests on hypotheses (in the form of [modus tollens][wiki1]), where a hypothesis is decisively refuted, are impossible in science because it's possible to save a hypothesis from a false test by proactively revising auxiliary hypotheses or a change in test conditions. The following demonstrates the reliance upon auxiliary hypotheses:

If (H and A), then I
not I
not (H and A)

Summary

The following instructions will install Vim with the Ruby interpreter and Command-T. I keep my vim settings under revision control, thus I have chosen to use Git's submodules and Pathogen to manage Command-T. Depending on your preferences, you may want to setup Command-T differently. I recommend reading through the Command-T Readme

Install dependencies (what my system required), hg, and rake

sudo apt-get install ruby ruby-dev libncurses5-dev mercurial clone build-essential rake

I chose to compile vim with my system Ruby, 1.8.7. It is important that you use the same version to compile both Vim and Command-T. If your using RVM and you want to do the same, before proceeding you will want to:

rvm use system

	# Below is an example of a User Story turned into a Cucumber feature

	User Story
	----------

	As a <Insert Role>
	I want <The Tool>
	So that <Insert Business Value>

	If a customer enters a credit card number that isn’t exactly 16 digits long, when they try to submit the form, it should be redisplayed with an error message advising them of the correct number of digits.