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   ocr: Table 3. Evaluating the Strategies for a Hybrid Environment RESPONSE TIME HYBRID STRATEGY CUMMENIS REQUIREMENTS PROS CONS Seconds Transaction Uses existing Additional legacy Gateway legacy transactions system online load Existing data for Little scope for capacity planning tuning; uses activities production code Minutes ROBMS Data Lets specific No good for legacy Replication granularity of data DBMSS be pushed out Substantial Refresh cycle can production be custom-tuned intrastructure Minutes to Hours Log Snifting- Less invasive than Requires a lot of Based Data other strategies post processin ...