A method for restricting specific users from accessing predetermined portions of MES screens depending on the state of the web screen page

摘要

The present invention allows a generic set-up of the MES screen wherein the panel always comprises the data available but blocks this data from view until the data segregation service removes this blocking according to the user roles and the state of the actual MES screen page.;Substantially, the solutions according to the present invention rely on the three afore-mentioned elements:a) the data segregation service that controls which data of the manufacturing execution system can be accessed by the logged user;b) the panel used in the MES screens, said panel comprising all the data that can be hidden; andc) the contextualization service that allows to store all the data that is currently selected on the MES Screen.;Further, the overall feature of the present invention is based on the concept that the data access management is applied at GUI level of each specific MES screen. The main advantage of the present invention is therefore that a set of predetermined generic MES screens can be delivered. The access to specific portions of the MES screens is regulated according to the actions and their restriction rules that involve logic on the data managed by the MES screen in certain states of the MES screen without the need to modify the source code of the MES screens. This leads to minor efforts for the customizing the MES screen leading to a cost reduction during the engineering phase. Further, the present invention has a less error prone approach for the customization of MES screen and the source code is not modified resulting in less maintenance costs wherein the copyrights on the MES screens are preserved.