It appears you have decide to work on the project backwards. Though it is a great practise to start your initiative with the end in mind, you must first conduct a feasibility study. This will help you clearly identify:

1. The stakeholders (this includes everyone that can affect or be affected by the new system)

2. The current business process within the scope of work

3. the systems currently being used and all other systems which relates or interelated to the current system in use

4. Analysis your findings. You will begin to identify flaws

5. Capture from senior management the first 10 objectives / reasons why the organisation wishes to implement a new system.

6. with the top ten objectives in mind, conduct your requirement gathering. this enable you understand what the end users needs from the new system (remember, you are building a system to enable the end user not only conveniently work but better serve the customers / students)

7. Analysis all the requirements then go into the market and find the new systems which best suits the needs.

I hope this helps.

Workflow management systems , the management of business processes with information technology.

I guess while requirements gathering is certainly out there and it has to happen, I suggest that you understand and identify the problem first. Every requirement gathered, should then contribute to solve the problem.