Suggestions for a masters dissertation / thesis

From a quick review of Masters' dissertation requirements, it appears

that the common requirements are that it must be based on a working
program and must have a practical application.

The JEE vs RoR sounds like a good candidate, provided it is well
thought out and the problem being solved is sufficiently practical.

Points to compare:
* cost effectiveness of vertical scaling
* cost effectiveness of horizontal scaling
* product development cycle time
* development cost
* maintenance cost
* ease of testing, and impact of testing on overall cost

I hope this helps.