I can't understand what is a quote. Can someone give a detailed answer on what are magento quotes, what data they store, what's their lifetime and other relevant information?
Edit: Please notice the difference: Magento vs Magneto. Also the "magento" and "mvc" tags.
quote = cart contents in Magento. Theoretically the quote is an offer and if the user accepts it (by checking out) it converts to order. You can control the lifetime yourself and they store metadata about the store, totals information , shipping and billing relations, relations to payment method and shipping method (that is quoted separately) and items