web Methods Architecture By web MethodsKB EAI Architecture

web. Methods Architecture By web. Methods_KB

EAI Architecture Concepts • Introduction Ø EAI IT Landscape Ø Integration Evolution • Basic Concepts Ø Messaging Ø Message Processing Ø Message Delivery Ø Message Sharing • Higher Concepts Ø BPM Ø BAM

Landscape Data Sources • Value Chain • Extranets • Legacy Systems • Packaged Apps • Bespoke Apps Intranets Internet • Transactions Customers Networks

Evolution Of Integration • Flat files • Screen Scraping • API based

Evolution Of Integration • Loosely coupled • Message Oriented • Business Logic Layer • Intelligent routing • Transformation • Transactions

Evolution Of Integration • Platform Agnostic • Standards Based • Distributed

Basic Concepts Of Architecture Messaging • MOM (Message Oriented Middleware) shields the inherent complexities like OS, Network topology and protocol, programming language from the applications • Application Communicate with each other using a series of messages. • Applications deposits (publish/request) and retrieve (subscribe/response) the messages from queues (a special message holding area) Message Processing • Synchronous Processing • Asynchronous Processing – enables applications to immediately return to normal processing after generating request without having to wait for

Basic Concepts Of Architecture Message Delivery • Volatile – fast – Messages are stored in memory – Messages are lost if the system shuts down • Guaranteed – slower – Messages are stored in a persistent queue – Messages are guaranteed to reach to its destination regardless of network reliability, target system’s availability, bandwidth limitations

Basic Concepts Of Architecture Message Sharing - Publish and Subscribe • Sending documents out for potential subscription (do not need to know who receives them) • Published documents are routed to the subscribed clients • When a client publishes a document, a “subscription pointer” to the document will be placed in the inbound queues of all subscribers • Each subscriber uses its pointer to extract a copy of the document from the queue • There can be multiple subscribers to single published message

Bus Architecture • Components – Bus – Message/Service Bus (Backbone) – Service Nodes - Enterprise Applications • • CRM ERP Mainframe/Unix Applications B 2 B Partner Applications • Bus – Real-time Message Transport • Adapter - Connectivity to Applications • Characteristics – Minimize point-to-point integration – Complex administration & management – Better scalability and performance. • Examples: See. Beyond, web. Methods and Tibco

BPM • The Process designer must be an easy-to-use and intuitive tool for process/business analysts to completely describe a Process. • Process Simulator enables the process analyst to perform as-if scenarios and to find out the bottle-necks in the process before deploying the process. • Process Executor is the Engine which manages the behavior ( persistency, integrity and flow ) of the Process at run-time. • Process Facilitator is the work-portal and it provides the interface for human interaction • Process Monitor collects data on each process instance and allows the Business Owners to keep an eye on the Business Processes. • Process Analyzer enables the business process / function owners to create multidimensional enterprise dash-board.

BPM Discover Analyze Designer Improve Implement Simulator Developer Monitor Executor Analyzer Facilitator Control

How it works ?

BAM “BAM defines the concept of providing real-time access to critical business performance indicators to improve the speed and effectiveness of business operations. ” • BAM is largely born-of, and is reshaping, two previously distinct technology markets: – Analytics and decision making of Business intelligence market – Real-time and business process linkage of Enterprise Application Integration (EAI) • BAM focuses more on what is happening than on what has happened or might happen • BAM sits in-between the historical and analytical focus of BI and the forward business planning of Corporate Performance Management

web. Methods Product Suite

web. Methods Product Suite • This diagram provides logical view of recommended B 2 B solution architecture I. e. there is no co-relation to the physical machines. • Reverse Proxy Server – Use only for routing inbound documents. No need to open internal firewall ports to DMZ. • Send outbound documents directly to Partner location (or DMZ file server for partners to pick up) • Reverse Proxy Server – No need for IS clustering as the reverse proxy servers only route the documents to internal IS. Use pseudo-clustering • Internal DMZ Facing IS Servers – In IS Cluster with shared Repository Server Configuration. Hosts Trading Networks packages and connects to a Trading N/w database.

web. Methods Product Suite • Trading n/w database file, EDI, SWIFT) for document tracking. • – configuration information - Partner Profile - TN Document type definitions (representing XML, Flat - Processing Rules [Routing] - Certificates - runtime information … transaction analysis logs used Integration Server for Enterprise Application – Acts as adapter run-time for integration with enterprise applications. As best practice, this IS may be on same machine as enterprise application or on a separate server close to the application. The IS performs - operations on the end-application via adapters - enables data exchange between the enterprise application and integration messaging backbone (broker) - provides transformation of data from application format to canonical (and vice-versa).

web. Methods Product Suite • Audit Log database and Trading Networks database will be setup on Oracle/SQL Server database instance. • Audit log – used to track execution of the services such as adapter services, flow services as well as business processes on the integration servers. • Messaging Backbone comprises of multiple broker servers in hardware cluster for high availability.

Details @ SAG • To get more detail on triggers, dispatchers, queues, document stores, storages, document types , etc … refer SAG documents.