By 'affiliate link' we mean the link that the publisher places on their website. You get the affiliate link from the Daisycon system and place it on your website. By using this link, Daisycon can measure that you as a publisher have forwarded a visitor to an advertiser.
On the advertiser's website there is a conversion pixel. The moment a transaction is generated, this conversion pixel is called. Daisycon then looks to see if a match can be made between the click on the affiliate link and the transaction. If this is the case, the transaction is registered and you as a publisher see a payment appear in your account.