CAT and Mouse game

The hottest topic of discussion in any CAT website nowadays is about CAT going online. Let me give you the facts first.
1. CAT is going to be online and will be conducted by Prometric International Testing Authority. (They conduct the popular GRE and TOEFEL exams)
2. It is going to be a Computer based test and not a Computer Adaptive Test.
3. The test will be conducted over a period of few days and a student can get a slot in any 1 of these days. The students taking test on different days will get different question papers of equal difficulty.
4. The scores or marks may be displayed soon after the test is submitted.

The CAT has exploded in last few years and was taken by 2.25 lakh people in 2008. Due to the exponential increase in number of takers, the IIMs are finding it increasingly difficult to conduct the test. So they decided to take the test online. The online test will make the correction of the paper and result publishing very easy. This means that the intention was only to simplify some of the processes, so the paper should ideally be the same. In effect, computer based CAT will be just like taking a soft copy of the CAT question paper.
IIMs have clarified the point that CAT is only going to be a Computer based test or a CBT and not a Computer Adaptive Test or a CAT (so CAT is no longer a CAT!!). In spite of this, many coaching institutes are trying to speculate that it could be an adaptive test. The arguments does not seem to make any sense to me as this will result in test takers getting papers with different levels of difficulty and hence result in flattening of marks. This is totally undesirable for a test like CAT where the basic idea itself is to eliminate people.
Another associated question that is discussed all over the net is that if the interface will provide a navigation tab to move around the question paper. As I suggested earlier, if the intention is only to take CAT into a computer, the interface should behave exactly like the question paper and hence should have a navigation panel. Time management is one of the most important aspects CAT tests and freedom of navigation is an important constituent in time management.
Computer Based testing enables the scores to be calculated within seconds after the test gets over but as the test is distributed over a few days, the actual percentile can be available only after all the test takers are done with the test. So if the IIMs want they can give the scores of the test takers soon after the test but not their percentiles. Percentiles and shortlists will have to wait, may for a week.
Your approach for preparation need not change because you are going to click the radio buttons instead of shading the bubbles. The funda remains the same, be prepared with the topics and you will be able to clear any test. Only section which will have some change will be DI; you won’t have the liberty to do your calculations on the tables and diagrams in question. So I have a feeling that this year, IIMs may reduce the number of caselets in DI which will have a lot of data presented in the form of tables and chart. They may decide to stick with a lot of puzzles and data sufficiency instead.