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Subject areas can be built by dragging Facts and Dimensions from Business Models. Many Subject Areas can be built from a Business Model, but each Subject Area can only be from one and only one Business Model. A Consistency Check is performed by default when a Repository is saved. Consistency Check will ensure there are no errors in the Repository. Consistency check can also be performed manually, File Menu Check Global Consistency for the entire Repository or RightClick on the Business Model to check just the Model. Locks on a Repository File during save can be released, by shutdown and re-start of the BI Server service. Security Management Authentication ­ Provides application Access. Supports Lightweight Directory Access Protocol (LDAP), Siebel Analytics Repository authentication (Default method used for authentication), Microsoft Active Directory (ADSI), and External Database authentication. Authorization provides permissions and privileges to view Reports, Data, create Folders, iBots, Manage Privileges, Create Views, etc. Security is enforced on two levels: Object-level security controls access to Metadata Repository objects (configured in Administrator Tool), and Web Catalog objects such as Folders, Filters, and Dashboards, etc. (configured in BI Answers Web Application). Data-level security controls access to content and data in end-user Reports and Dashboards (configured in Administrator Tool).

Administrator Tool Manage Menu item Security Manager is used to define Users and User Groups and define Repository permissions. Data-level permissions can be set to above Groups and Users from the Presentation Table properties dialog box of each Subject area. BI Answers Web Page, Settings Menu Administration, to view and administer privileges associated with various components of the Answers Web application. Bypassing Security In the security section of the NQSConfig.ini file, uncomment AUTHENTICATION_TYPE=BYPASS_NQS save, re-start BI Server service. Setting Query Limits Administrator Manage Security Manager Groups Permissions Query Limits tab. Options: Enable: Enforces restriction and cancels the query Warn: Logs message in NQServer.log and NQQuery.log if row limit is reached Ignore: Limits will be inherited from the parent groups. If there is no row limit to inherit, does not enforce limit Disabling Query Functionality Administrator Manage Security Manager ­ Groups Permissions Query Limits tab Restrict box (for production tasks & updates). Recommended Books and Related Sites The Data Warehouse Lifecycle Toolkit by Ralph Kimball, Margy Ross, Warren Thornthwaite http://www.oracle.com/technology/documentation/b i_ee.html - Documentation site for OBIEE http://www.oracle.com/technology/obe/obe_bi/bi_e e_1013/index.html - OBIEE Tutorial http://www.oracle.com/technology/documentation/b i_apps.html - Oracle BI Applications

Oracle Business Intelligence Enterprise Edition Plus (OBIEE) Server Architecture

Revision 200709

Dimensional Modeling Oracle Business Intelligence Enterprise Edition Plus (OBIEE) strictly adheres to Dimensional Modeling AKA Star-Schema for logical repository design, for use by BI Answers and Interactive Dashboards. Alternative to OLTP, it is pioneered by Ralph Kimball to support OLAP, simplified end-user reporting, query performance etc., contains Fact tables (measures) and Dimension tables (attributes of the measure) as the companion tables to each Fact table. Relationship between Dimensions and Facts is always a 1:M or 1:1 Architecture Three main server components: BI Server (BIS) ­ SQL generator for queries, can perform database functions to merge data from multiple sources, handles security etc. Presentation Server (PS) ­ Reports and dashboards, also contains a folder like structure called WebCatalog to store report definitions, dashboards, folders, filters, etc. Scheduler ­ Manage scheduled tasks, including Delivers BI PS runs along with HTTP server. It communicates to BIS via an ODBC driver called `Analytics Web', installed on the server. UI components such as BI Answers, Interactive Dashboards, iBots/Delivers, BI Publisher, etc., are all part of BI PS. Installation Requirements Java SDK 1.5.0 (JESE5.0) or higher must be installed prior to OBIEE server and client tool installations. Web Server, such as IIS must be installed for Windows, and Oracle Application Server must be installed for Linux/Unix based installs. For Linux, OBIEE is a component of OAS 10gR3, its deployed in a separate server or on the same

Applications Tier under a separate home ($BI_HOME). After the installation, two directories get created, one for Server files and the other for Data files. Files and Folders for reference BI Server $BI_HOME/server/config/NQSConfig.INI Config file $BI_HOME/server/repository/*.rpd - Metadata Repository File $BI_HOME/server/log/NQServer.log NQQuery.log, and NQScheduler.log - Log files BI Presentation Server $BI_HOME/data/web/config/instanceconfig.xml Main Config file $BI_HOME/data/web/catalog ­ Web Catalog file. This folder is identified in instanceconfig.xml $BI_HOME/data/web/log/sawlog0.log - Siebel Analytics log file OBIEE Administrator Windows based client tool to develop and manage Metadata repository. Repository changes can be done in either online or offline mode. Online mode is when BI Server is actively reading the repository file (when a user is logged in). Offline is when BI Server is idle. Best practice is to develop in Offline mode. Minor changes can be made when in online mode. Administrator uses ODBC connectivity to connect to physical data sources, uses Native Drivers for Oracle and DB2. OBIEE defines three layers of abstraction. Physical Layer ­ connections to physical data sources (OLTP, OLAP, Flat Files, Oracle, SQL*Server, Teradata, etc.). Business Model Layer ­ Brings together data elements from Physical sources into a logical

Star-Schema representation. This is where business rules and definitions are setup. Presentation Layer ­ An abstraction from the Business Model, defines exactly how users will see tables and fields. Connection Pool is a connection to a Physical data source. Multiple connection pools can be created to the same source to improve end-user query performance. All tables in the Physical layer must have a Primary Key column. Column properties can be edited to set the Primary Key. Physical joins need to be established between tables, using Foreign Keys and Primary Keys. Right-click on Connection pool to create the Physical diagram joins. A Business Model can be created by drag and drop of objects from the Physical Layer. It's a logical Star-Schema representation of the Physical objects. Tables from different sources can be merged to form one Logical table. These sources are called Logical Table Sources. Logical Fact tables hold Metrics; every Metric must have an aggregation rule. Hierarchies can be setup on dimensions for drilldown functionality. It is important to join logical Facts and Dimensions together, much like the Physical Diagram. Right-click on Model, click Business Model Diagram to create joins. Use Complex joins in the Business Model. Presentation Layer is exactly what End-Users will see in BI Answers, contains multiple Subject Areas that answer specific Business questions.

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