A Mission Panel is a simpler, contemporary design used predominantly in modern style cabinetry. It also has a center panel and a flat frame overlay around the edge. The mission panel features straight lines and there is no decorative carving or raising in either the panel or the overlay. The center panel itself is completely flat, like a slab cabinet door, and the overlay around the edge is very sleek and simplistic looking. It's definitely a "less is more" design that is timeless and fits well with many interior spaces.
On the whole, Mission Panels tend to be more contemporary or transitional in style, often used in modern designs, while Raised Panels are used in more traditional settings.