Question: Peter A. Franaszek. John T. Robinson. and Alexander Thomasian. "Concurrency Control for High Contention Environments."ACM TODS 17, No. 2 (June 1992). This paper claims that, fora variety of reasons, future transaction processing systems are likely to involve a significantly greater degree of concurrency than the systems of today, and that there is therefore likely to be substantially more data contention in such systems. The authors then present "a number of [nonlocking] concurrency control concepts and transaction scheduling techniques that are applicable to high contention environments" that-it is claimed, on the basis of experiments with simulation models-"can offer substantial benefits" in such environments.