ProtoType

experimental step of Product Development

implies Iterative design/improvement (D And D)

cf Minimum Viable Product, Demo Or Die

tools https://en.wikipedia.org/wiki/Comparison_of_software_prototyping_tools

• using KeyNote for "high-fidelity Wire Frame"
• Sketch https://en.wikipedia.org/wiki/Sketch_(application)
• Mozilla Pencil https://addons.mozilla.org/en-US/firefox/addon/8487/
  • widget collections http://groups.google.com/group/pencil-user/web/pencil-collections?pli=1
• Balsamiq Mockups
• FaceBook's Ori Gami is based on Quartz Composer for MacOs X https://github.com/facebook/origami
• IDEO's Avocado also uses Quartz Composer, but requires no coding.
• Axure $290 http://en.wikipedia.org/wiki/Axure_RP
• InVision https://www.invisionapp.com/
  • use Canvas to synch Sketch drawings https://blog.prototypr.io/basic-navigation-with-sketch-and-invisions-craft-prototype-plugin-99a2d2798ef9
• Moqups https://moqups.com/ web/SVG-based

Lorem Ipsum generator, because if all your text blocks are the same, it becomes harder to anchor change discussions. http://baconipsum.com/

also an OOP variant: Prototype Based

also an AJAX library http://prototype.conio.net/