Prosciutto is any Italian dry-cured ham. Prosciutto di Parma and Prosciutto di San Daniele are two giants of the category.
"Antipasto" means, literally, "before the meal". It can be a little nibble or two, a platter of salami and cheese, or an extravaganza of a dozen or more delicious foods. It can be modest and humble or utterly luxurious.
The key to this simple salad is using the best ingredients you can find, simple but quality ingredients are always the way to go - especially for picnics and outdoor entertaining!