qr code generator with logo javascript Consolidated Data Creates More Interesting Problems in Java

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Consolidated Data Creates More Interesting Problems
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One of the main reasons for implementing a data warehouse is that it allows you to bring together data from multiple systems This creates a number of interesting security requirements Each system from which data was pulled will have its own set of security requirements When you gather all of the data together, these requirements may be different At the very least, you will need to reconcile the security requirements from each system Let s revisit the grades example again While performing grade entry, teachers probably look only at a small data set They probably see a student s name and grade for a particular test However, once the data is consolidated in a data warehouse, different sets of data are combined to yield interesting, but sensitive information For example, consolidating data from the free lunch program with grade data may provide interesting information for the research department, but this data probably shouldn t be available to the general public Similarly, providing demographic information together with grade data makes the data more sensitive, because you can now do grade analysis by race, gender, or socioeconomic status (politically charged data, to say the least)
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Let s continue the example a bit further School districts often publish information about how students perform, broken out by various demographic indicators at the aggregate level For example, information might be published on what percentage of students from each race achieved a Proficient score on a statewide assessment That s all well and good, unless a particular racial group is a very small part of the student population At this point, aggregate data starts to become personal data Because of this, I ve worked with several school districts that have security requirements that data should not be shown if the population size is below a certain amount This is another example of security requirements that are quite unique to BI systems
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We discussed the fact that the BI system often has different security requirements from the transactional system However, that doesn t mean you have to start from scratch in defining security requirements for a BI system Often, the transactional system has a good set of roles or groups that can be reused in the BI system The ability to leverage these roles and the already defined membership in these roles can help you jump start the process of setting up BI security In addition, if you want to provide users the ability to navigate from the BI system back to the transactional system, it is important that you have their security context properly set up in the BI system A good example of this can be seen in the Oracle BI Applications, which are prebuilt data warehouses and BI systems designed to be placed on top of major transactional systems (Siebel, PeopleSoft, Oracle, and SAP) With these applications, you can leverage the security model and roles defined in transactional systems To start with, these BI applications have security groups that map to the roles (PeopleSoft) or responsibilities (Siebel and Oracle) of the source transactional system They also leverage transactional system information such as Operating Unit Organization or Inventory Organization to provide data-level security This allows the BI applications to limit the rows returned in queries based on the organization of which the user is a member This gives you a great starting place in defining the security model for your BI system
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Securing a BI system can involve several tasks: Securing access to the BI system itself Securing the data presented via the BI system Securing access to content created with the BI system Securing functionality of the BI system
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Securing the BI system includes both authentication and authorization You can authenticate with Oracle BI using externalizing authentication so that you can leverage existing security infrastructure The SSO server can authenticate the user and provide a coarse level of authorization (for example, this person s credentials check out and he or she is allowed to access the BI system) We also discuss group membership within Oracle BI for few different reasons First, with security administration externalized, this topic requires some special attention Second, it is a critical prerequisite to setting up SSO Finally, it sets the stage for 14 and all the other steps required in securing a BI system Securing data and content and establishing privileges are all based on group membership
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