The scout is a profession designed for those that want to explore and be self-sufficient in the country. It is for those that want to spend their time hunting, traveling, and interacting with wild creatures. Scout skills are necessary for those who wish to move on to the more advanced professions that use a scout's expertise, such as creature handlers, rangers, or bounty hunters.
As a novice scout, you'll have some skills that are unique and improve your ability to survive in the wild. You'll learn the skills of trapping creatures and the ability to put together a camp that will allow yourself and your friends to have their wounds healed when far from a medical center. You'll learn to take bones, meat, and hides from the creatures you have hunted, which gives you everything you need to craft a few simple items, like camps and traps. Scouts also have a basic understanding of wild creatures, and can gain more information than other professions from examining them.
The exploration discipline is a set of skills that allows you to move about in the wilderness and to avoid trouble. Burst running is improved, costing fewer points to use, and you'll eventually gain the ability to sprint at full speed up the steepest of mountains. The skill of camouflage is learned, as is the complementary ability to mask your scent as you sneak past hostile creatures. Those who become masterful in the discipline of exploration may be able to move up to the professions of creature handler or Squad Leader.
Trapping is just what it sounds like--the skills involved in trapping creatures. As you learn the trapping discipline, you'll gain the ability craft more and more complex traps, as well as to use them effectively against targets. These traps can then be used to immobilize, poison, or otherwise disable a creature while the trapper fights it. There are no other professions that require trapping as a prerequisite, save for master scout.
Scout hunting skills give you a steady improvement in the ability to harvest hides, bones, and meat from the creatures you kills. This allows you to harvest them more efficiently and waste less, providing you with more of these valuable raw materials. To go along with this, your ability to effectively attack creatures with ranged weapons is increased. Hunting is more than just killing and skinning prey, though. The hunting discipline also increases your general knowledge about the creatures of the world, allowing you to gain more useful information about a creature, its strengths, and its weaknesses by using Galaxies' "examine" feature (available by clicking on a creature and using the radial menu).
Those mastering the discipline of hunting will have learned a great deal about the ways of the creatures of the galaxy, and can possibly move up to either the profession of creature handler or bio-engineer.
The survival discipline teaches you how to survive on your own, away from civilization. You'll learn, first of all, to forage for food and drink in the wilds. While eating is not necessary in Star Wars Galaxies, doing so gives your character bonuses. While studying survival, a scout will also be able to craft and erect increasingly complex camp sites. The best camps are even capable of defending their owner while he rests! Those who master the discipline of survival will have some of the skills necessary to move on to the profession of squad leader.
Once a scout has mastered the disciplines of exploration, trapping, hunting and survival, and has proven that knowledge by passing it on to others, he can move up to being a master scout. A master scout gains significant bonuses to all of the skills previously learned in the four scouting disciplines.
Once declared a master scout, a character has one of the basic requirements to become a bounty hunter, putting his skills to use hunting more... intelligent creatures, or a ranger, remaining in the wilds to master their secrets.