Time strategy representation model and abstract method thereof

Abstract

The invention discloses a complete time strategy representation model, which can be represented as a five-part model comprising five parts, wherein the five parts are a strategy starting time part [ts, te], a timing mode part, a counting part represented as the absolute value of N, a period representation part P and an actual strategy part C respectively; and simultaneously, a realization process of abstracting the five parts from actual application is defined and comprises the following steps: first determining time granularity, namely a smallest time representation unit (such as millisecond, microsecond, second and the like), according to actual application conditions, and determining a greatest time unit (such as year, quarter, month and the like) according to the granularity and a time length suitable for a strategy so as to determine time representation; then determining a starting time ts and an ending time te of the strategy, and analyzing and determining an execution period, namely, finding out a regular period P according to an order that the time units of the strategy are greater and greater; and finally adding strategy rules and generating the strategy with time. The time strategy representation model can be conveniently applied in all kinds of applications needing time representation.

Description

technical field The invention relates to a software design method, adopts a general time strategy representation model for software design, and can be applied to various applications requiring time representation strategies in real life. Background technique With the advancement of time and research depth, the research on time strategy gradually develops in a fine-grained direction. At present, in the security policy management system, there are two mainstream directions for time policy management. One is to define periodic time expressions by introducing the concept of calendar, and to make authorized roles in permission and non-permission states through Zhou Ming’s tense detection. The second is the time point representation, which simulates the continuous time series in the real world by defining a sequence of discrete time points. On this basis, a formal definition of various time constraints is proposed. Below we first describe these two time strategies respectively, ...

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Problems solved by technology

Description of the problem: The purpose of this invention is to solve the problems of irregular ...

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