http://ayende.comAyende @ RahienCopyright (C) Ayende Rahien 2004 - 2021 (c) 202660I also think it isn't a good idea to automatically change items of a shopping cart. My way to shop is like browsing in firefox. Go thru the categories and put all what is interesting into the shopping cart. If i am ready to buy, i got to the shopping cart and think about what i really need and may remove something. http://ayende.com/3739/shopping-cart-sample-design-considerations#comment6http://ayende.com/3739/shopping-cart-sample-design-considerations#comment6Fri, 12 Dec 2008 12:31:55 GMTTracking quantity changes instead of quantity is an interesting idea, especially if you think in terms of tracking how a user shops (for instance if a message of 'buy 2 get 1 free' results in an increased sale). http://ayende.com/3739/shopping-cart-sample-design-considerations#comment5http://ayende.com/3739/shopping-cart-sample-design-considerations#comment5Wed, 10 Dec 2008 03:35:11 GMTThe like the add only / audit trail aspect of what you suggest here. I have been considering it for the next major version of dashCommerce. The ShoppingCartView doesn't really "feel" right to me, but I'll be doing a lot of work in the near future and I'll play with the idea to see if it feels better after working with it. http://ayende.com/3739/shopping-cart-sample-design-considerations#comment4http://ayende.com/3739/shopping-cart-sample-design-considerations#comment4Mon, 08 Dec 2008 19:22:06 GMTChris, This in particular is the example that I am using in the last chapter of my book. http://ayende.com/3739/shopping-cart-sample-design-considerations#comment3http://ayende.com/3739/shopping-cart-sample-design-considerations#comment3Sun, 07 Dec 2008 21:46:48 GMTI'm curious to see where this series of posts ends up. It would be nice to have a rules based system recommend purchases to customers and store the information to modify the cart with those recommendations. That way you could say something like when the total amount of Harry Potter books exceeds the price of the bundle, recommend the bundle instead. Then the presentation/controllers could modify the cart without actually going back to the product catalog. You would need a final inventory inquiry during check out to provide shipping estimates, but that's fine too. You could also do it outside of the normal order flow and provide updated recommendations alongside the usual browsing experience asynchronously -- eliminating some latency in the end-user page load. So keep it coming! http://ayende.com/3739/shopping-cart-sample-design-considerations#comment2http://ayende.com/3739/shopping-cart-sample-design-considerations#comment2Sun, 07 Dec 2008 21:39:51 GMTI don't think that I would automatically convert all the separate Harry Potter issues into a bundle, instead I would present the option to do so and explain the motivation (discount). Maybe the user made a mistake and didn't intend to order all of them but only all minus 1 (don't know how many books there are ;) if you would do the convention automatically then that means the customer notices his mistake and needs to manually add all individual books again minus the one he already had. That will be frustrating I believe. So I believe suggesting something lie this is of high customer value, doing it automatically is not, because I cannot decide this for my customers. -Mark http://ayende.com/3739/shopping-cart-sample-design-considerations#comment1http://ayende.com/3739/shopping-cart-sample-design-considerations#comment1Sun, 07 Dec 2008 20:06:57 GMT