If you're building a building, Information Technology (IT) It's like the foreman of the building. IT graduates are expected to know and really understand the technical details of "building" to be built, or in the realm of computers, IT is responsible for the program, network and database development.
While the System Information (SI) is the architect. SI graduates will play at the level of the concept of a "building", or in the realm of computers, this SI is responsible for making planning system on paper logically.
Well, when the building was finished, alias when the system designed by SI and already well established by IT, which can optimize the benefits for business purposes is a graduate of Business Information Systems (SIB).
Because the SIB will be more on the lecture portion of the material things that are contextually linked to the business aspects of the utilization of an information system to support management needs.
Which is more prospective for the future? The answer is easy, that depends on your own! Because the jobs associated with computer science over the present and the future era, no longer easily accessible to those who are generalists (understand a little about a lot of things) or a specialist (understand a lot about little things).
The job requires the versatile, that is, those who have a soul "life-long learner", which is like learning anything in her life.
Thus a versatile, the demand by job seekers, are those who have the technical understanding, able to analyze and understand the business world.
Ability versatile it is rather difficult if only to follow a linear process in the lecture on campus. You should strive to be learning out of the box, not just confined to the classroom.
Being versatile it is a lifelong learning process. To that end, be a versatile, then if later on the IT department, SI or SIB no longer a matter of principal.