Delphi Developers Group Main Meeting

All Delphi Developer meetings are free and open to the public.
Reservations are not required.

Delphi Developers Group Main Meeting

November 16, 1998

Distributed Application Development and the Inprise VisiBroker Object Request Broker
Inprise Corporation

Distributed application development is evolving into the standard application architecture of the future. Application developers are being asked to build and deploy distributed applications that are component based, open, flexible, and interoperable across a wide range of platforms. At this months meeting we will look into cross platform, application development; the issues and technologies application developers will need to understand, and the Inprise VisiBroker products.

The Inprise VisiBroker set of solutions includes the following:

VisiBroker, a CORBA 2.0 Object Request Broker (ORB) written completely in Java with native support for CORBA's Internet Inter-ORB protocol (IIOP), enables developers to build and deploy distributed applications that are open, flexible, and interoperable across a wide range of platforms. VisiBroker allows developres to take advantage of Web, Internet and Intranet based technologies while leveraging the component re-use fostered by object-oriented computing.

VisiBroker Integrated Transaction Service (VisiBroker ITS), a transaction-management solution, delivers the features of a traditional TP monitor while meeting the requirements of distributed object applications. VisiBroker ITS simplifies the complexity of distributed transactions by providing an essential set of services:

an integrated product set that includes the VisiBroker ORB, naming and event services;
an implementation of the CORBA Transaction Service, recovery and logging;
integration with databases and legacy systems; and
administration facilities-within a single, integrated architecture.

VisiBroker Naming Service is a mechanism to associate meaningful names to individual object implementations. VisiBroker Naming Service reduces the complexity of locating and retrieving objects from the thousands of objects available. An implementation of OMG's CORBA Naming Service specification, VisiBroker Naming Service provides a CORBA 2.0-compliant solution ensuring flexible, heterogeneous interoperability.

VisiBroker Event Service, an implementation of the OMG's CORBA Event Service specification, extends the capabilities of the VisiBroker ORB to include alternative communication mechanisms needed by event-based tasks. Through support for asynchronous invocations, VisiBroker Event Service allows the de-coupling of the traditional "clients" and "servers" and transforms applications into information "suppliers" and information "consumers". This supplier-consumer model reduces server traffic and improves scalability without impacting development efforts. VisiBroker Event Service is a CORBA 2.0-compliant, high-performance solution, guaranteeing interoperability within heterogeneous environments.

VisiBroker Manager supports and enhances the development, deployment and management of VisiBroker applications. By providing visual access to ORB information, developers can efficiently and effectively manage an applications operating characteristics

Time	7:00 PM
Location	Kronos, Inc. 400 Fifth Avenue, Waltham, MA
Directions	Heading South on Route 128 take Waltham Exit 27A, Totton Pond Road / Wyman Street. The exit ramp will merge with Totton Pond Road West. Merge into the left lanes and follow the signs to Totton Pond Road East towards Waltham and Route 128 (you are making a u-turn, make sure you get in the correct lane). Proceed over Route 128 and at the second traffic light (the first and second traffic light are separarted by about 50 feet) turn right onto Third Avenue. Heading North on Route 128 take Waltham Exit 27A, Totton Pond Road. Proceed up the exit ramp and just before the traffic light, bear right towards the stop sign. Turn right onto Third Avenue. On Third Avenue, proceed about a 100 yards and turn left onto Fifth Avenue, the first "real" left just before the Westin Hotel. Proceed up the hill on Fifth Avenue, at the top turn (bear) right. You will pass 4 buildings (3 red brick and 1 tan brick) on your left. Kronos is located in the last (4th) building on you left, the only tan brick building in the office park. Park in the parking lot and proceed to the main entrance of the tan brick building. Signs in the lobby will direct you to the meeting room. (If you get lost, ask for directions to the Westin Hotel in Waltham.)
Additional Information	Al Reinhart, DisCom Systems Voice: 508/869-6417 EMail: reinhart@DisCom.com
In case of inclement weather or a holiday on the day of a scheduled meeting please call Kronos after 3:00 PM at (781) 890-3232 to determine if the building will be open and check the web site to deterine if the meeting is canceled. (An open building does not guarantee a meeting will take place.)