Research and development design workflow flexible modeling method based on object-oriented hierarchical Petri network
An object-oriented, design work technology, applied in the field of enterprise informatization, can solve the problems of different extension definitions of Petri nets, increase the complexity of workflow models, etc., and achieve the effects of easy extraction and reuse, improved description capabilities, and clear layers
Pending Publication Date: 2021-01-05
BEIHANG UNIV
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But different scholars have different definitions of the extension of Petri net, and the definition of other elements extended in the definition also increases the complexity of the workflow model
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[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0036] The present invention provides a flexible modeling method for R&D and design workflow based on object-oriented layered Petri nets. The following uses a simplified A product R&D process as an example to illustrate the construction process and support of the product R&D and design workflow model based on OOHPN_PDDW The process of how the workflow management system responds dynamically.
[0037] like Figure 4 As shown in , it is a schematic diagram of product R&D task decomposition for A. When decomposing tasks, the first-level designer first decomposes the overall goal into three sub-goals: product design, product manufacturing and delivery. Then the second-level designer will continue to decompose the product design into three sub-objectives: sub-system 1 design, sub-system 2 design and auxiliary equipment design. Finally, the third-level designe...
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The invention discloses a research and development design workflow flexible modeling method based on an object-oriented hierarchical Petri network. The method comprises the following steps: firstly, defining a task demand and determining a total target, secondly, decomposing the total target into a plurality of sub-targets, and then further decomposing the complex sub-targets layer by layer into sub-network objects with lower hierarchies to obtain a sub-network object set with a clear hierarchical structure; organizing personnel of each level to carry out detailed modeling on the subnet objects according to the responsibilities of the personnel, and integrating all the objects according to the connection relationship between the objects; and finally, instantiating related attributes of nodes in the obtained model to finish modeling of the object-oriented hierarchical Petri net model. Modeling of a complex product research and development design workflow model can be achieved, the modelhas flexibility so as to support flexible processing such as resource scheduling, dynamic selection and abnormal response dynamic changes in the operation process, and a product research and development design workflow management system has the dynamic adaptive capacity.
Description
technical field [0001] The invention belongs to the field of enterprise informatization, and in particular relates to a product development and design workflow modeling method, in particular to a product development and design workflow based on object-oriented hierarchical Petri nets (Object Oriented Hierarchical Petri Nets for Product Development Design Workflow, OOHPN_PDDW) flexible modeling method. Background technique [0002] The R&D and design process of complex products faces many uncertainties in the definition stage, and conflicts under time and resource constraints may occur in the execution stage. For example, the R&D and design process of aerospace products has the typical characteristics of multi-model parallelism and multi-level collaboration. During the operation of the process, there may be conflicts and various unexpected exceptions where the same resource is occupied by multiple types of tasks at the same time. The complexity of scheduling High and difficu...
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IPC IPC(8): G06F30/22G06Q10/06
CPCG06F30/22G06Q10/06316G06Q10/0633
Inventor 乔立红徐婷赵汉卿
Owner BEIHANG UNIV