Summary of What's New in WAS V5 WAS V5 represents a continuation of the evolution to a single, integrated, cost-effective , Web services-enabled, J2EE server foundation for foundation messaging flows and applications that offers customers With WAS V5, IBM enables customers to expand their business opportunity and productivity through a world-class infrastructure ready for On Demand Business. Version 4 made advances in usability, connectivity, and performance that allowed customers to more easily deploy Web applications as well as maximize the performance of those applications. In V5, IBM makes it possible for its customers to participate in the next chapter in e-business. The past five years of e-business were about Web-enabling content and applications. The next chapter is about On Demand Business: dynamically integrating those applications with existing data stores, other applications, and Web services that exist in heterogeneous environments, in multiple programming models, and on different sides of firewalls. WAS V5 provides a powerful foundation and integrated development environment that supports on demand business applications. It provides customers with the four essential characteristics of the on demand operating environment: open , integrated, virtualized, and autonomic. IBM recognizes that every deployment environment is unique, and for that reason, WebSphere Application Server V5 is a single application server code-base with multiple configuration options to support a wide range of scenarios, from simple administration of a single server to a clustered, highly available, high-volume environment with edge of network services. Comprehensive Build-to-Integrate Platform WebSphere provides a platform that allows the building of integration-ready applications that leverage existing software assets. Enable Dynamic Application Interaction WebSphere enables dynamic application interaction through native, high-performance JMS (Java Messaging Service), J2EE 1.3 Message Beans, and container managed messaging. JMS simplifies development by allowing loosely coupled , reliable, asynchronous interactions among J2EE components and legacy systems capable of messaging. Message beans save valuable programming time and skill in that they allow requests to be processed when they arrive , as opposed to code that checks for the arrival of messages. WAS V5 also supports container managed messaging. This feature further reduces required skill level and development time to create these asynchronous applications, allowing the EJB container to take care of core messaging aspects that would otherwise have to be coded in the message beans. This added support for JMS, Message Beans, and Container managed messaging simplifies development while not requiring in depth JMS skills. Reuse and Integrate Disparate Systems and Applications WAS V5 significantly reduces the complexity of interacting with back-end systems through advanced support for Java Connector Architecture (JCA). This feature simplifies the development necessary to connect different types of systems ”for example, from single-phase resources, such as CICS, to two-phase resources like DB2. Unleash Powerful Web Services WebSphere Application Server V5 offers a complete Web services implementation allowing customers to create new business opportunities by exposing business and application services for integration to other divisions, business organizations, or platforms. WAS V5 allows implementation across many platforms, including iSeries and zSeries. The new version offers the ability to build, deploy, and securely externalize Web services for application consumption across the firewall. Choreograph Application Interactions WebSphere Application Server V5 also includes a Service Choreographer that allows businesses to build and deploy process flow quickly and efficiently . This new feature enables customers to expose J2EE-based applications, Web services, and legacy applications as reusable services and then mix and match these services to create a new flexible e-business application. This application can then, in turn , be exposed as a Web service. To facilitate further business efficiencies for customers, the new version supports long running flows with intermittent human interaction. Developers can build flows that can be interrupted prior to completion and then automatically restarted, in addition to flows that prompt users to perform a task or work list. Support for Business Rule Beans and Compensation is added in the new version. Business Rule Beans allow a business analyst to dynamically update business rules without having to hand code application changes. This feature further reduces the cost of creating more efficient processes. Finally, WAS V5 offers support for automated compensation to increase developer productivity by reducing the need to create complex logic to manage transactions. This feature gives the customer the ability to complete or negate a list of defined transactions that depend on each other to fully complete a unit of work. This ability lets customers visually define the process of the transactions as well as the appropriate actions to undo or commit the list of transactions in the event of a failure. Agile Deployment and Administration WebSphere Application Server V5 includes several significant improvements in the flexibility of administration, deployment, and management services. Manage with Ease A new XML-based administrator client that works over HTTP is one of many significant usability enhancements to WAS V5. With this client, the administrator can create and manage the WAS cluster while quickly and easily deploying new components, applications, and services. Databases are no longer necessary for administering WAS; however, for simplicity and cost savings, DB2 is included with WAS Network Deployment and Enterprise versions for use in session persistence. Additionally, management is made easier in WAS V5 with support for significant parts of JSR 115, the Java Authorization Service. It allows customers to plug in third-party authorization/roles engines to their WebSphere environment. Administrators can now easily manage a joint authorization engine and application serving environment. Intelligent End-to-End Application Optimization WAS V5 improvements allow customers to create competitive advantage and optimize price/performance while meeting the changing demands of dynamic e-businesses with industry leading reliability, availability, scalability, performance, and security. Handle the Volume Dynamically WAS V5 improvements allow administrators to work more efficiently and easily. Support for JMX (Java Management Extensions), which records and logs statistics on usage and resources, is included in the new version. JMX is a standard way of managing a J2EE environment and exposes the WebSphere administrative data to partners like Tivoli and others for management integration. This allows administrators to better manage performance through best of breed tooling that is tightly integrated with their application serving environment. The combination of JMX and Performance Monitor Interface (PMI) in WAS V5 allows customers to capture and manage more performance metrics than any other vendor. Customers can now capture not only performance metrics defined in the PMI but also WebSphere and application specific metrics. In addition to JMX, WebSphere Application Server V5 contains multiple components to improve the ability to handle volumes dynamically with high performance. For example, included in WAS V5 is the Tivoli Performance Viewer (previously named Resource Analyzer). This feature offers smart auto-tuning to simplify the administrator's job by automatically making recommendations to tune critical WebSphere parameters for maximized performance. Tivoli Performance Viewer saves time while enabling improved application performance. Always On, Always Available WAS V5 has new elements that decrease costly downtime. Additional load balancing is included to allow failover beyond the cluster level to the domain level, enabling high availability of critical enterprise Java applications. V5 includes improved, weighted workload distribution and failover of clustered application servers, isolation of application servers to avoid single points of failure, and a simpler and improved configuration infrastructure for much better coordination and integrity of related changes. The power of first failure data capture means that your application server will be able to report and analyze problems as they occur. In addition to these features, Application Profiling delivers powerful new capabilities that allow you to carefully optimize the performance of your applications without impacting any application source code. This capability offers a mechanism for instructing the same component to interact with the run-time infrastructure, such as a database, differently depending on the application that calls it. Therefore, you gain unprecedented control in defining strategies about concurrency, update intent, use of collections, and prepopulating component state and data buffers. Instill Confidence with Security WAS V5 offers outstanding security through its sophisticated infrastructure and through its extensive support of open, standards-based Java specifications. WebSphere WAS V5 will support the following: -
Java Authentication & Authorization Services (JAAS) to authenticate new principals and manage privilege information for a principal -
Java 2 Security Model to secure system resources -
JavaSecure Socket Extension (JSSE) to secure communication channels based on transport level security (TLS/SSL) -
Java Cryptographic Extension (JCE) -
Java Cryptographic Architecture (JCA) for Java cryptographic extensibility such as for PKI integration -
Common Secure Interoperability V2 (CSIv2) for interoperability between application servers Together, these implementations enable you to implement standards-based security capabilities within your enterprise applications. Additionally, sophisticated enterprise topologies and infrastructure can be implemented by leveraging WebSphere pluggable security architecture. This includes the following: -
Pluggable user registries that enable you to exploit LDAP or custom registries -
Web single sign-on exclusively provided by WebSphere or through integration with front-end authentication end-points through Trust Association Interceptor (TAI) technology (Reverse Proxy Security Servers) -
End-to-end access to enterprise information systems using rich security features and exploiting the pluggable principal and credential mapping facility The caching proxy provides plug-in support for Tivoli Access Manager that allows you to exploit the Access Manager infrastructure and an LDAP plug-in to exploit an LDAP-based repository for storing user authentication and authorization information. |
