WebSphere Diego Leone

Summary Story and birth What is WebSphere?/Goals Main features Advantages/Disadvantages Conclusions

WebSphere’s birth and story IBM’s product its roots are in the mid-1990s based on Java programming language IBM launched WebSphere in 1998 gained momentum with on-demand business (2002)on-demand business

WebSphere Goals l integrate all of a company’s existing data l give a Web front-end l support for business processes – respond to market fluctuations and new industry supply chain requirements in realtime. build interactive Web-oriented applications support business functions needed for e- commerce

What is WebSphere?(1) a set of software products

What is WebSphere?(2) middleware application middleware trasforms the old business into SOASOA is J2EE certifiedJ2EE implements three tier architecturesthree tier architectures

What is WebSphere?(3) composed of: – server software – development products this two parts are bundled into packages The foundation of the software is WebSphere Application Server (WAS)

What is WebSphere?(4) Four different sizes: – Small – Medium – Large – Super Size A Company chooses the size according to its needs

What are its main features?(1) l It works across all of its different operating systems and applications l Unify the company’s management

What are its main features?(2) Modular options: – There are different tools that can be added to WAS – Different tools help the different audiences Example: –for Web-site developers –for application developers

What are its main features?(3) run code that enables business application – Example: Run many EJBs and Servlet within WASEJBs and Servlet realizes multi-tier applications – Example Example

WebSphere Architecture

WebSphere’s Architecture example

Some hardware requirements quite modern PCs advised IBM zSeries N.B.: differences between Server and Client

Some software requirements Operating System: Windows XP Professional SP1a Linux Sun Solaris Other… A lot of applications are included (HTTP server)

HTTP server WebSphere HTTP plug-in for the HTTP server. uses an easy-to-read XML configuration file to determine whether a request is handled by the Web server or the Application Server. uses the standard HTTP protocol to communicate with the Application Server uses secure HTTPS for the configuration, if required

What are advantages?(1) installation and customization are simple for administrative task very good when it’s ready there are a lot of useful tools: Example: Click hereClick here gives lot and lot of integration gives good Web Site IBM gives a complete assistance…

What are advantages?(2) Business features: – simplifies the attainment of the “time to market” – gives only point of administration – simplifies the communication inside the company

What are disadvantages? installation and customization aren’t so simple not a good product for little company (under 1000 employees) the tools have to be put together

Conclusions(1) IBM is using its size to become the leader There are other products: – BEA System – SAP – Windows Server System (.Net and Windows Server 2003) [best for the smaller company]

Conclusions(2) using WS, Don Sloan (Kforce) reduces the time required for its applicant matching process from two or three days to less than an hour WebSphere costs a lot of money……

Bibliography s/sg pdf fs/redp3601.pdf

J2EE The standard for developing, deploying, and running enterprise applications

A three Tier Architecture

Middleware Middleware is what on demand business demands (IBM) middleware “is the goo that helped companies get out of the porting game.”

Glossary(1) E-business on demand: the idea of paying only for the IT and business processes you need, when you need them Service Oriented Architecture (SOA)

Glossary(2) EAR files - Enterprise application archive consisting of JAR files (EJB, Java code) and XML configuration files.

Glossary (3) Enterprise JavaBeans are server-side components that use services such as life-cycle management, transactions, security, database connectivity, and more. They provide application business logic and data access. Servlets and JavaServer Pages are server-side components used to respond to requests from HTTP clients. They provide presentation and control client interaction with applications.

Tool examples(1) WebSphere Studio: – unit test environment – visual editors – user interface for the latest Web technology – a wizard for creating servlets – J2EE EAR deployment supportEAR – …… WebSphere Studio Workbench: – open tool – implements the same functionality of Eclipse

Multi-tier Application: Example