How are these two (value proposition and generic strategy) similar? How are they different?

Management

Marketers use the term ‘Value Proposition’ when discussing the various approaches a company might take when seeking to attract customers. Strategists typically talk about Porter’s 5 Generic Strategies to describe the way companies tend to focus their efforts as they seek ways to achieve their long-term goals and objectives.

How are these two (value proposition and generic strategy) similar? How are they different?