I started before the advent of e-commerce and have been directly involved with many early Retail, Manufacturing, Medical, Life Sciences and other vertical e-commerce projects using Fry OCP, Demandware, Magento, ATG, Intershop and now hybris. For me, it's all about approach, methodology, documentation, focus and education. It's getting five blind people touching and elephant that it is ONE elephant. And how does one eat an elephant? One bite at a time.