what is white hat seo techniques ?

i think if we follow search engine guideline rule, that is called white hat seo.

• Quality Content
  Use Structural (Semantic) Mark Up and Separate Content from Presentation
  Titles and Meta Data
  Keyword Research and Effective Keyword Use
  Quality Inbound Links

White hat techniques are the most fruitful options for the Internet marketing. These techniques shows authentication of yours. You must always choose white hat techniques for your brand promotion.