Enterprise Software Architecture

Adaptable Enterprise Software Architecture – A Case Study Rizwan Ahmed PMP CISSP IT Systems Architect

Index ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction ,[object Object],[object Object]

Architectural Requirements for a Web Based System ,[object Object],[object Object],[object Object],[object Object]

Web Based System Reference Architecture This is referred to as an n -tier architecture (here, n =3). A tier is a partitioning of functionality that may be allocated to a separate physical machine

Typical Web Based System Architecture

Web Browsers for Modifiability ,[object Object],[object Object],[object Object]

Proxy Servers for Performance ,[object Object],[object Object],[object Object]

Routers and Firewalls for Security ,[object Object],[object Object],[object Object]

Load Balancing for Performance, Scalability and Availability ,[object Object],[object Object],[object Object]

Web Servers for Performance ,[object Object],[object Object],[object Object]

Application Servers for Performance and Scalability ,[object Object],[object Object],[object Object]

Databases for Performance, Scalability and Availability ,[object Object],[object Object],[object Object]

Roadmap to J2EE ,[object Object],[object Object],[object Object]

Summary of J2EE Technology Components ,[object Object],[object Object],[object Object],[object Object]

Summary of J2EE Technology Components and Services (contd.) ,[object Object],[object Object],[object Object]

Deployment view of the J2EE multi-tier Architecture

Roadmap to Web Services – SOA ,[object Object],[object Object],[object Object]

Roadmap to Web Services – Benefits of SOA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Service Specification ,[object Object],[object Object],Financials Interface to online credit check provider Check Credit Credit check CRM Verify if customer exists Check Customer Customer Verification

SOA – Service Specification (contd.) ,[object Object],[object Object],SOAP based web service. Backend implementation using Java classes talking to any EIS database Implementation: verifyCustomer(custId, name, ssn) Methods: Customer Id; address; shipping information; email; preferences Outputs: Customer Id; name, ssn, Input: Customer Verification Service:

Web Services Basics ,[object Object],[object Object],[object Object]

Summary of Web Services Technology Components ,[object Object],[object Object],[object Object],[object Object]

Deployment view of a typical Web Services multi-tier Architecture

SCRS Enterprise Forms Application ,[object Object],[object Object],[object Object],[object Object]

Components Overview ,[object Object],[object Object],[object Object],[object Object],[object Object]

Components Overview ,[object Object],[object Object],[object Object],[object Object]

Security Model ,[object Object],[object Object],[object Object]

Use Case FA001 (Sequence Diagram)

Use Case FA002 (Sequence Diagram)

Deployment View ,[object Object],[object Object]

Enterprise Software Architecture

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