JPO is a framework for persistence (storage and retrieval) of domain (or data) objects in Java-based database applications. The object/relational impedence missmatch is widely regarded as a complex problem with no easy solution.
Cars changed overtime by people who wanted bigger cars or faster cars. People started to make plans for better cars, tested them and see if they people liked it. Cars are stil â¦ l changing today.
The invention of the assembly line changed the way the auto industry did business. To keep factories running smoothly, manufacturers needed auto dealers to buy vehicles in large quantities. In 1919, we opened our doors as GMAC, a division of GM, to help dealers finance and maintain their inventory and keep up with consumer demand.