Implementation method of loosely coupled flow

Abstract

The invention discloses a method for the implementation of loosely coupled flow, which comprises the following steps of: 1, analyzing an XML (Extensible Markup Language) format-described flow defining file and importing the file in a flow database; 2, extracting information from the flow database, correctively constructing a flow information memory object used by a flow information exhibition control, maintaining and managing the flow information, and saving the modifications in the memory object in the flow database; 3, automatically drawing a flow figure by using the given flow information memory object according to the flow information and setting a chaining address of detailed flow information, and dynamically exhibiting flow node associate detail on a flow exhibition interface; and 4, exporting relevant information in the flow database as an external XML format file.

Description

technical field [0001] The invention relates to a method for realizing a computer process in a database system, in particular to a method for realizing a loosely coupled process. Background technique [0002] The traditional process model-based process design method needs to customize the process template in advance to form a fixed upstream and downstream relationship of process nodes, and realize limited upstream and downstream relationship changes through simple true and false condition judgment. The traditional process model-based process design method has the following problems: [0003] 1. There is a strong coupling relationship between upstream and downstream nodes, and dynamic changes cannot be made in the process. In the traditional process model-based workflow design method, the process template is required to be customized in advance, and the upstream and downstream sequence between each process node is clearly specified in the process template. The task cannot c...

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Problems solved by technology

[0003] 1. There is a strong coupling relationship between upstream and downstream nodes, and dynamic changes cannot be made in the process

The traditional process model-based workflow design method requires pre-customized process templates, in which the upstream and downstream sequence of each process node is clearly specified, and the workflow is executed strictly in accordance with the order in which it is executed. If the upstream nodes are not completed Tasks cannot carry out work on subsequent process nodes, let alone dynamically add and delete process nodes during process operation, or change their upstream and downstream relationships, which has great limitations

[0004] 2. Simple judgment of true and false conditions cannot effectively express the complex upstream and downstream dependencies between nodes

In the traditional process model-based workflow design method, one or more Boolean expressions of process variables are usually used to realize the jump or branch of process nodes, but this method is difficult to effectively support complex patterns such as process backtracking and process looping , and if the judgment condition is too complex, when the number of process nodes exceeds a certain number, the conditional judgment Boolean expression will become difficult to read and understand due to the introduction of too many variables

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