Informatica server components-Informatica Client components

When a workflow starts, the Informatica Server retrieves mapping, workflow, and session metadata from the repository to extract data from the source, transform it, and load it into the target. It also runs the tasks in the workflow. The Informatica Server uses Load Manager and Data Transformation Manager (DTM) processes to run the workflow. 

Server Components 

Integration Service. Integration Service manages the scheduling and execution of workflows. It reads mapping and session information from the repository, extracts data from the mapping sources and stores the data in memory while it applies the transformation rules that you configure in the mapping. It loads the transformed data into the mapping targets. You can achieve high performance using symmetric multi-processing systems, start and run multiple workflows concurrently and concurrently process partitions 

within a single session.

Informatica Server-Client Architecture

Repository Service. Repository Service manages the metadata in the repository database and repository connection requests from client applications. For each repository database registered with the Repository Server, it configures and manages a Repository Agent process. It monitors the status of running Repository Agents, and sends repository object notification messages to client applications. The Repository Agent is a separate, multi-threaded process that retrieves, inserts, and updates metadata in the repository database tables. The Repository Agent ensures the consistency of metadata in the repository by employing object locking. 

Web Services Hub. The Web Services Hub is a gateway that exposes PowerCenter functionality to external clients. It receives requests from web service clients and passes them to the Integration Service or Repository Service. The Integration Service or Repository Service processes the requests and sends a response to the web service client through the Web Services Hub. 

SAP BW Services. The SAP BW Service listens for RFC requests from SAP BW and initiates workflows to extract from or load to SAP BW. The SAP BW Service is not highly available. You can configure it to run on one node

Client Components 

Repository Server Administration Console. Repository Server Administration Console is used to add, edit, and remove repository configurations. It is also used to export and import repository configurations, create, promote, copy, delete, backup and restore repositories. 

Repository Manager. Repository Manager is used for administering the repository, perform folder functions like create, edit and delete folders. It is also used to copy a folder within a repository or to other repository, compare folders, and implement repository security. Also, it allows us to create, edit and delete repository users and user groups, assign and revoke repository privileges and folder permissions, view locks and un-lock objects. You can import and export repository connection information in the registry, analyze source/target, mapping dependencies and view the properties of repository objects. 

Designer. Designer provides five tools with which you can create mappings. Source Analyzer is used to import or create source definitions for flat file, ERP, and relational sources. Warehouse Designer is used to import or create target definitions. Transformation developer is used to create reusable transformations. Mapplet designer is used to create mapplets. Mapping designer is used to create mappings. 

Workflow Manager. Workflow Manager is used to create Workflow which is a set of instructions to execute mappings. Generally, a workflow contains a Session and any other task you may want to perform when you execute a session Tasks can include a Session, Email, or Scheduling information. You connect each task with Links in the workflow You can also create a worklet in the Workflow Manager. A Worklet is an object that groups a set of tasks. 

Workflow Monitor. Workflow Monitor is used to monitor workflows and tasks. You can view details about a workflow or task in either Gantt Chart view or Task view. You can run, stop, abort, and resume workflows. Displays workflows that have run at least once. Continuously receives information from the Integration Service and Rep