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.
And, where product is the lifeblood of any automotive brand, and where car model changes every four to five years are normal, Saturn vehicles saw only one redesign in their first decade of existence.