The Oracle Certified Master - Java EE 6 Enterprise Architect, which is a combination of three exams, 1Z0-807, 1Z0-865 and 866 is one of the toughest, hardest, and tiring Java certification you will ever give, but at the same time, it is also one of the most prestigious Java certification available in the Market. Large enterprise organizations (for example, Wall Street firms) with critical applications and environments are constantly in need of skilled architects. These companies are looking for well-trained and highly experienced specialists to architect their systems, define requirements, and oversee execution.