Resources and Tools for Protoyping

Part 1

1. http://www.usability.gov/how-to-and-tools/methods/prototyping.html
2. http://www.telono.com/en/articles/lo-fi-vs-hi-fi-prototyping-how-real-does-the-real-thing-have-to-be/ 
3. http://www.usabilityfirst.com/glossary/high-fidelity-prototype/
4. http://www.atlargeinc.com/insights/high-fidelity-vs-low-fidelity-prototyping-web-design-and-app-development 
5. https://www.youtube.com/watch?v=91-JnTq3MhA

Tools 

1. https://www.invisionapp.com/
2. https://marvelapp.com/
3. http://www.axure.com/

Part 2

1. https://uxmag.com/articles/what-a-prototype-is-and-is-not
2. https://www.smashingmagazine.com/2014/10/the-skeptics-guide-to-low-fidelity-prototyping/
3. http://www.usabilityfirst.com/glossary/low-fidelity-prototype/
4. http://andrewchen.co/why-every-consumer-internet-startup-should-do-more-low-fidelity-prototyping/
5. http://www.telono.com/en/articles/lo-fi-vs-hi-fi-prototyping-how-real-does-the-real-thing-have-to-be/
6. http://it.toolbox.com/blogs/enterprise-solutions/prototyping-types-of-prototypes-14927
7. http://www.usabilityfirst.com/glossary/horizontal-and-vertical-prototypes/
8. http://marketblog.envato.com/grow-improve/creativity/introduction-sketch-ui-design/
9. https://www.smashingmagazine.com/2011/12/the-messy-art-of-ux-sketching/
10. http://www.slideshare.net/LaneHalley/how-to-draw-quick-useful-ui-sketches
11. http://ui-patterns.com/blog/User-interface-sketching-tips-part-1
12. https://uxmag.com/articles/storyboarding-in-the-software-design-process
13. http://www.fastcodesign.com/1672917/the-8-steps-to-creating-a-great-storyboard
14. http://www.slideshare.net/fgarofalo/users-story-ux-storyboarding