Marcos Antonio de Lima Filho, Strategic Usability: The Usability as Competitive Strength on the Smartphones Industry, Blucher Design Proceedings, Volume 1, 2014, Pages 1100-1106, ISSN 23186968, http://dx.doi.org/10.5151/designpro-CIDI-103 (www.proceedings.blucher.com.br/article-details/strategic-usability-the-usability-as-competitive-strength-on-the-smartphones-industry-8766) Palavras-chave:: ;