ORA SPACE

Oracle Application Server 10g is a member of the Oracle Fusion Middleware family of products

Oracle Application Server 10g offers a comprehensive solution for developing, integrating, and deploying your enterprise’s applications, portals, and Web services. Based on a powerful and scalable J2EE server, Oracle Application Server 10g provides complete business integration and business intelligence suites, and best-of-breed portal software.

Figure: OracleAS Solutions Ecosystem

Oracle Application Server 10g consists of three logical-tiers i.e. Client-tier, OracleAS Business Applications or Middle-Tier, and OracleAS Infrastructure Tier. OracleAS tiers can be deployed on single host as well as tier components split onto various hosts for load balancing and scalability.

Figure: OracleAS Base Architecture

Oracle Identity Management software manages user authentication, authorization,and identity information. Functionally, its main components are:

■ OracleAS Single Sign-On

■ Oracle Delegated Administration Services

■ Oracle Internet Directory

■ Oracle Directory Integration and Provisioning

Architecturally, Oracle Identity Management can be broken down into a Web server tier of Oracle HTTP Server, an OracleAS Single Sign-On/Oracle Delegated Administration Services middle-tier composed of an Oracle Application Server Containers for J2EE (OC4J) instance for these security applications, and an Oracle Internet Directory/Oracle Directory Integration and Provisioning tier at the back end. The OracleAS Metadata Repository is an Oracle database that manages configuration, management, and product metadata for components throughout the OracleAS Infrastructure and OracleAS middle-tier.

The middle tier hosts most of Oracle Application Server business applications, such as:

■ Oracle Application Server Portal

■ Oracle Application Server Wireless

■ Oracle Application Server Integration

These applications rely on Oracle Identity Management and OracleAS Metadata Repository for security and metadata support. The middle tier also includes a Web caching sub-tier (Oracle Application Server Web Cache), a Web server sub-tier (Oracle HTTP Server), and OC4J instance(s). Behind the middle tier, the OracleAS Metadata Repository serves as the data tier.In actual deployments, other databases may also exist in the data tier (for example, a customer database for OC4J applications deployed on the middle tier).