Research And Implementation Of Access Control In Printing ERP Systems

The printing ERP system has been developing in recently years. Printing tasks are always different. This feature makes printing ERP system have complicated functions and many users. Printing ERP system classifies users by different levels, both the parallel relationship and the subordinate affiliation. With the expansion of enterprise and the division of responsibilities, some problems have been broken out, such as chaos of responsibilities and insecurity of data resources. The fundamental way to solve these problems which trouble software developers is to authorize different users flexibly.Printing Industry Management Solution (PIMS) is an independently developed printing ERP system. The thesis discusses how to analyze, design and implement the privilege management module of PIMS. PIMS system use static and dynamic privilege management method to guarantee system security reliably.At first the thesis studies several different access control models, analyzing the advantages and disadvantages of them. Compared to Discretionary Access Control model and Mandatory Access Control model, Role-Based Access Control model uses the conception of role to solve the huge number and frequent change of users in ERP systems.But it still has some disadvantages. Task-Based Access Control model is based on workflow, but ignoring role. T-RABC (Task-Role-Based Access Control) model imports the conception of role and task, and solve the dynamic characteristic of models and the lifecycle of roles. The thesis proposes an enterprise privilege management method, implementing the static and dynamic access control in PIMS system by authorize tool, workflow engine, Web UI etc. At the end of the thesis, it uses purchase order as an example to elaborate the application of T-RABC model in PIMS.PIMS system has been deployed in a printing industry in Dong Guan. It uses static and dynamic privilege management method, resolving lots of management problems such as chaos of responsibilities, difficulties in access control and so on. PIMS system increased the production efficiency and competitiveness of printing enterprise.