Research On Design Of Trading System Based On Automata

Along with the rapid development of Internet technology, electronic payment and online trading have gradually become one important transactional manner in daily life. Compared with traditional off line manners, their proportion has increased gradually. Prevailing online trading makes trading circumstances become ample constantly, which varies the deal form at the same time. For online transactional system, the variety of trading process also diversifies and its type for distinct orders has also increased all the time. Therefore, systems developers need to deal with corresponding procedures for different orders type, which consequently raises difficulty for developers.This paper proposes one extensible transactional system constructing platform and trading process control method. Specifically, order states and state transition affairs are modeled as an automaton model and such states as well as affairs are implemented in the proposed platform. Developers merely need to define states and transitional affairs between states and offer such affairs to administrators. Furthermore, corresponding affair types which are verified by trading system whether they can be defined as a directed graph are selected by administrator. If it succeeds, an automata example, through which the trading procedure execution can be implemented, is automatically constructed. Thus, customization and extendibility of tradable process can be implemented via reusing code that directs the states and their transitions. Consequently, extendibility and flexibility of trading system development are ameliorated. Also, difficulties among system development can be decreased at the same time.In order to test and evaluate the feasibility of the proposed method, this paper analysis the core business information in the transaction process referring to the alipay trading protocol through researching and analyzing existing thrid-party trading platforms. On the one hand, trading system's module function is designed and implemented according to what has been studied. On the other hand, the accuracy of the process execution is verified from the aspects of cohesion for system function. Moreover, one evaluation is carried out on two aspects that are code amount as well as execution performance. Results show that, even though execution performance has decreased a little, coding amount and testing time can significantly be reduced, especially in current trading scenario under the diversity conditions.