In order to do this, it has two functions:
Both of these are essential. It has to replicate because time and matter destroy it. It has to mutate because the universe is constantly changing.
Both of these need each other, because in order for mutations to be implemented, they must be replicated, and in order to replicate in a changing universe, DNA must mutate.
Mutation is random because DNA has no way of predicting how the universe will change.
Your business, website, ad campaign, video game, or [insert whatever project you're working on now] also has one basic goal: survival. Try asking yourself two questions:
How will it replicate?
How will it mutate?
[Image via Molecular Station]