Distributed architecture and clustering
Multiple JEUS servers can be clustered to act as a single distributed system, which then facilitates the processing of higher volumes of system traffic. Within this architecture, each JEUS server communicates with and monitors the other servers, enabling the entire system to provide services continuously under any circumstances. The distributed architecture also enables the system to be dynamically upgraded or expanded during runtime, without having to be shut down.          
         
Within this distributed environment, in the event of system error, back-up servers and multiple server instances facilitate the continual availability of services. EJB failover, JMS failover, and JNDI failover are also supported. Additionally, administrators can dynamically add or delete server instances within each server without having to shut down the system.

Load Balancing
- Static load balancing
Access requests are intercepted and routed to specific nodes within the system based on pre-determined settings.
- Dynamic load balancing
JEUS monitors the system and reroutes requests to sections of the systems with the lightest load, ensuring requests are evenly distributed at all times.
- Dynamic addition of server instances
JEUS is capable of dynamically activating additional server instances within hosts for handling increased levels of client requests.

Error Handling
- Mutual monitoring among servers
All interactions between servers (hosts) are mutually monitored so that reliable and stable services are guaranteed. In the event of transaction or system failure, requests are passed to backup servers and automated restart functions are engaged.
- Server instance monitoring
All server instances are monitored and, in the event of failure, are automatically restarted. Additionally, in the event of Servlet or EJB service failure, services are automatically restarted and an email notification is sent to the relevant user.

Enables the development and implementation of highly stable web services
JEUS components comply with extended Web Service Standards, such as Atomic Transactions and WS-Reliable Messaging. This ensures that service quality is maintained in terms of message security, data integrity, and message accuracy.

Web services developed with JEUS comply with SOAP 1.1/1.2, WSDL 1.2, and UDDI 2.0/3.0 Basic Web Service Standards. Compliance to the various standards ensures that developed Web services will be fully interoperable with the Web services of other vendors and platforms that meet WS-I Basic Profile 1.0 specifications.

Can implement a variety of presentation logics
- Servlet
Supports the Java Programming model in creating dynamic HTML documents and implements multi-threaded architecture to enable flexible integration with EJBs.
- JSP
Used to control Web page content and styles through Servlets and access the Java programs executed by the Web Server.
- XML
Used to enable the transfer of structured documents in the Web environment and for implementing reliable and stable e-commerce in structured and standardized text forms.

User friendly business logic
EJB (Enterprise Java Beans)
Following the Java-based object oriented programming model, JEUS facilitates the adding or updating of application components without affecting server status.

Compatible with J2EE certified products and applications
- J2EE CA (Connector Architecture)
Provides a standards-based application integration environment, ensuring integration with other systems, such as CICS, IMS, SAP, Tandom, Ingres, MQ, etc.
- JMS (Java Messaging Service)
Provides a message-oriented programming base.
- JNDI (Java Naming and Directory Interface)
Provides a naming service.
- JTS (Java Transaction Service)
Enables global transactions to be performed across heterogeneous databases.
- JMX (Java Management eXtension)
Enables the efficient management of the engine, EJB, Servlet, and Connection Pool.
Enables the creation of application from MBeans.
Enables all resources within JEUS to be monitored and managed.
Facilitates integration with external administration tools such as HP Openview.

Additional
- Ensures integration with CORBA through RMI-IIOP.
- Ensures integration with COM/DCOM through the COM Bridge.
- Ensures integration with LDAP through the JNDI Bridge.
- Ensures integration with the DB using the JDBC Driver.
- Ensures integration with Tmax, CICS and IMS through WebT.
- Vendor-specific connectors ensure integration with various third-party systems.
- Standard Java logging API enables flexible management of logging configuration.

Incorporates a variety of intuitive development and administration tools
- Web browser-based configuration tools.
- Log analysis tools for searching and analyzing log information.
- A comprehensive and user friendly console administration tool for managing the JEUS servers.
- A web server monitoring environment so that administrators can easily access status information (connected users, Servlet requests/processing times, thread statuses, etc).
- Automatic monitoring and management of engine processes for fault detection.

Flexible security architecture
JEUS is provides an "open architecture" and "flexible framework". This enables JEUS security functions to be highly customizable. For example, JEUS security domain functions can limit authorization by client IP or domain, while individual user authorities can be assigned separately for each application if necessary. Additionally, JEUS facilitates dynamic authority mapping (principal-to-role and role-to-resource mapping) and incorporates security audit mechanisms that operate through a flexible event handling model.

- Provides a wide variety of templates and components for developing web applications (Servlet, JSP, JSF, EJB, etc).
- Accommodates various programming techniques.

- Provides a centralized administration environment to facilitate efficient system management.
- Provides a centralized, eclipse-based environment for developing and managing application programs.

- Automatic fault tolerance: in the event of hardware failure, service requests are routed to and continuously processed within backup hardware.
- Automatic restart: in the event of process failure, service programs are automatically restarted.
- Load balancing features ensure that the system maintains an optimal level of performance.
- Multi-threading architecture solves the performance problems experienced by traditional CGI-based architectures.
- Database connection pool reduces load on DB.

- Wide variety of client types can access the server.
- Incorporates a variety of server-side modules (Servlet engine, EJB, etc).

- Supports the use of global transactions in systems that contain heterogeneous databases.
- Supports the initiation of web transactions from web clients.

Solution Used: JEUS Project Period : January 2005 ~ March 2005

Hanatour travel agency maintains 20 branch offices and 5,000 outlets and affiliated agencies throughout South Korea. Hanatour supplies travel products directly to customers and also sells them indirectly through partners. Therefore their intranet integrates many external channels, not only throughout Korea but also other countries. Their system also connects to travel-related reservation systems such as flight, hotel, and car rental systems throughout Korea and the world.

Hanatour's intranet initially used an Apache Tomcat system that used JSP to handle around 1,500 simultaneous individual accesses, but as the company grew and the load increased, their system could not efficiently manage DB sessions. Hanatour added an L4 switch, but disconnections continued to occur and bottlenecks emerged, causing server failures and paralyzing business.

In order to resolve these problems, Hanatour selected TmaxSoft's JEUS WAS solution to implement a more resource-efficient intranet capable of handling their increasing user demands.

"IBM's WebSphere is good but too heavy. We have examined WAS products for three or four years and checked up on BMT reports. We selected TmaxSoft's JEUS because, among other things, it is based on original technology and TmaxSoft can provide quality technical support." 
                                                                - Jinhwan Kim, Hanatour Vice Director

Hanatour's new JEUS-based system provides reliable services and the switchover was seamlessly implemented without affecting the company's business operations. Most applications and business processes were directly migrated. Indeed, less than one percent of the company's applications had to be redeveloped during the switchover.

The new system uses only four servers to process all services, instead of the eight servers used by the previous system. Server failure and business delays have been eliminated. Since implementation, the system has operated smoothly and without failure, even during peak travel seasons.

TmaxSoft released JEUS 6 in June 2007, marking the culmination of a great deal of effort and technological innovation. JEUS 6 is has been developed entirely within TmaxSoft using wholly original technologies. JEUS 6 was the first non-SUN solution to receive Java EE5 certification, demonstrating that JEUS 6 is an advanced technology at the very vanguard of the IT revolution. Previous versions of JEUS have dominated the Korean WAS market since 2003. Experience JEUS 6 - the most cutting-edge eBusiness Strategic Platform available.

New Features of JEUS 6

Increases developer convenience
JEUS 6 streamlines development by meeting a broader range of specifications, including EJB 3.0, JAX-WS 2.0, and JSF.

- EJB 3.0
Session bean : Combines the functions of the home interface and the component interface into one business interface.
Entity bean : Uses Java Persistence API to enable the DB to be accessed via the Entity Manager without requiring SQL queries.

- JWS 2.0
JAXB 2.0 : 100% schema support; schemas can be created from Java classes.
JAX-WS 2.0 : streamlines web service development through the use of metadata.

- JMaker 4.0
Provides a powerful development environment, for use with Java EE 5 and JEUS 6, based on Eclipse 3.2 and WTP 1.5. Also used to create CRUD components for database tables.
- View : JSF 1.2 Component
- Data : JPA Component

Increases administrator convenience
JEUS 6 provides a web-based management environment and observes a wider variety of recognized international standards to provide management convenience. With greater XML-oriented support, JEUS 6 is particularly advanced in terms of web service support and interoperability.

- Facilitates web-based interactivity
Richer user experiences through Ajax technology.
Intuitive system status monitoring environment (dashboard).
Expansion of web administration through plugins.

- Manages JMX based Java standard resources
Provides standardized MBean interface for all JEUS resources.
Supports interoperability with JMX based management tools.
Manages even user MBeans.

- Manages network resources through SNMP
Manages network resources through SNMP, the standard enterprise network management infrastructure.

- Distributed management of web services
Management Using Web Services (MUWS): All manageable resources can be monitored and controlled through web services.
Management Of Web Services (MOWS): Manages metric for web services themselves.
Provides system flexibility and expandability
JEUS 6 provides strengthened interoperability with third-party and open source products. It has been designed around the concepts of reusability and integration in order to establish an SOA development environment.

- Interoperability with third-party products
SUNOne (iPlanet) - Web Server
Vitria - EAI
HP OpenView - NMS Console
Wily - APM

- Interoperability with open source products
Web Framework - Struts
IOC Container - Spring
Persistence - Hibernate
XML - Xerces
Web Services - Axis

Java EE 5 Certified
JEUS 6 is one of the very few Java EE 5 certified products available. Java EE 5 is the most recent Java Platform Enterprise Edition to be released. Compared with previous editions, Java EE 5 increases developer convenience and incorporates a variety of enhanced functions. By using JEUS 6, you can access the enhanced functionality of Java EE 5.

-Java EE 5 / J2EE 1.4 comparison

- Enhanced efficiency when using Java EE 5

Leading the way in open standards
After becoming the first company in the world to produce a (non-SUN) Java EE 5 certified product, TmaxSoft is now leading the way in maintaining global standards.

- JCP
TmaxSoft is an active member of JCP
As of today, TmaxSoft has participated in total 16 JSR
Java EE 5 core technologies: JSR 244 Java EE 5, JSR 220 EJB 3.0, JSR 245 JSP 2.1
Web services : JSR 222 JAXB 2.0, JSR 224 JAX-WS 2.0, JSR 261 JAX-WSA 1.0
Java core technologies : JSR included in Java SE 5 and Java SE 6
BPM : JSR 207 Process Definition for Java , JSR 208 Java Business Integration 1.0
Security : JSR 196 Java Authentication Service Provider Interface for Containers
Tool support : JSR 198 A Standard Extension API for Integrated Development Environments

- WS-I
Targets securing interoperability, the most vital feature for web services
WS-I Basic Profile
WS-I Attachment Profile
WS-I Basic Security Profile
WS-I Sample Applications

- OASIS
WS-Security
WS-ReliableMessaging
WS-BPEL
WSDM
ebXML

TmaxSoft's JEUS 7 application server has achieved Java EE compatibility. We will release JEUS 7 at the end of 2010. However, you can meet the technical preview of JEUS 7 which supports the full spectrum of Java EE technology, including Servlet 3.0, EJB 3.1, JPA 2.0, CDI 1.0, WebServices 1.3 and more. Note that JEUS 7 has only a Linux and x86 download now, and it's listed as "jeus70_linux_x86.bin". As such, the product is not be in final form.

Increases developer convenience
JEUS 7 streamlines development by Java EE 6 specifications, including Servlet 3.0, EJB 3.1, CDI 1.0, and
JAX-RS 1.1

- Servlet 3.0
Servlet 3.0 supports asynchronous Servlets and introduces web-fragment.xml to merge several web.xml automatically for development convenience

- EJB 3.1
EJB in .war: Enables to package EJBs in .war together, not separately
Singleton Session Bean: Introduces a new session bean which has shared data in the same application.
Asynchronous Invocation: Allows asynchronous invocations which had to use extra technology such as Web Services or JMS.
Schedule Expression Timer: Adds powerful calendar-style expressions compared to restricted expressions in
EJB 3.0.
No Interface View Session Bean: Removes interface restrictions for a local session bean invocation.

- CDI 1.0
CDI 1.0 enables to manage the life cycle of Java EE Components and interact with one another easily.

- JAX-RS 1.1
JAX-RS 1.1 supports RESTful Web Services.

- Production Redeployment
A developer can update and redeploy an application in a production environment without stopping the application or otherwise interrupting the application's availability to clients.

- Enhancement of JMS
Supports JMS Unit of order and JMS Unit of work, and enhances failover.

- Enhancement of Web Service
Supports WS-RM persistence store and WS-Transaction.

Increases administrator convenience
JEUS 7 provides a web-based management environment and observes a wider variety of recognized international standards to provide management convenience. With greater XML-oriented support,
JEUS 7 is particularly advanced in terms of web service support and interoperability.

- Facilitates web-based interactivity
Richer user experiences through Ajax technology.
Intuitive system status monitoring environment (dashboard).
Expansion of web administration through plug-ins.

- Manages JMX based Java standard resources
Provides standardized MBean interface for all JEUS resources.
Supports interoperability with JMX based management tools.
Manages even user MBeans.

- Manages network resources through SNMP
Manages network resources through SNMP, the standard enterprise network management infrastructure.

- Distributed management of web services
Management Using Web Services (MUWS): All manageable resources can be monitored and controlled through web services.
Management Of Web Services (MOWS): Manages metric for web services themselves.
Provides system flexibility and expandability
JEUS 7 provides strengthened interoperability with third-party and open source products. It has been designed around the concepts of reusability and integration in order to establish an SOA development environment.

- Interoperability with third-party products
SUNOne (iPlanet) - Web Server
Vitria - EAI
HP OpenView - NMS Console
Wily - APM

- Interoperability with open source products
Web Framework - Struts
IOC Container - Spring
Persistence - Hibernate
XML - Xerces
Web Services - Axis

- Introduction of Domain architecture
Domain composed of serveral clusers or servers, controls and manages servers easily and enhances availability.

Java EE 6 Certified
JEUS 7 is one of the very few Java EE 6 certified products available.
Java EE 6 is the most recent Java Platform Enterprise Edition to be released.
By using JEUS 7, you can access the enhanced functionality of Java EE 6.

- Java EE 5 / Java EE 6 comparison


Leading the way in open standards
TmaxSoft is now leading the way in maintaining global standards.

- JCP
TmaxSoft is an active member of JCP.
As of today, TmaxSoft has participated in many JSRs such as JSR 316 Java EE 6, JSR 318 EJB 3.1, JSR 315
Servlet 3.0, JSR 317 JPA 2.0, JSR 322 JCA 1.6, JSR 314 JSF 2.0, JSR 299 CDI 1.0 and so on.

- OASIS
WS-Security
WS-ReliableMessaging
WS-BPEL
WSDM
ebXML