Enhancing the HP e3000 User Interface

Appendix C: Client/Server Conversions

Level 8—Web-enabling the HP e3000 Platform

Geneva Message Queuing

Since 1996, Level 8 has been working with Microsoft to meet the interoperability needs of

enterprise developers. The result is Geneva Message Queuing (GMQ)—the simple, reliable, cost

effective Windows messaging solution for the enterprise.

Microsoft Message Queue Server (MSMQ) is the popular message queuing subsystem integrated

with the Windows family of products. MSMQ provides loosely coupled and reliable network

communications services based on messaging queuing. MSMQ makes it easy to integrate

applications, implement a push-style business event delivery environment between applications,

and build reliable applications that work over unreliable but cost-effective networks. Because of

MSMQ’s ease-of-use, integrated and comprehensive feature set, Microsoft recommends MSMQ

when choosing a message queuing technology for Windows-based applications.

Microsoft’s only recommended implementation of MSMQ on non-Microsoft operating system

platforms is Geneva Message Queuing. Geneva Message Queuing extends full MSMQ

functionality from the Windows environment to encompass the full range of non-Windows

operating systems, including HP e3000.

To make it easier for Windows developers to create cross-platform applications, Microsoft

includes the Level 8 message queuing connector with Windows 2000. This message queuing

connector enables Windows-based MSMQ applications to exchange MSMQ messages with non-

Windows Geneva Message Queuing applications.

Solution Pattern

Developers tasked with delivering new web-based applications are migrating to the Windows

platform for the obvious reasons:

• Simple, easy to use Web development tools and technologies including ASP, COM, IIS, MSMQ

etc.

• A wide range of technical support from Microsoft including conferences, MSDN and TechNet

web sites, etc.

• Since the tools necessary are included with the Windows platform the technologies are

widely available and accessible to a large pool of developers

But as everyone knows this is not a Windows only world, therefore many times a developer may

have to access a database or other information resource running on a non-Windows system

such as HP e3000.

This type of scenario is what Geneva Message Queuing is uniquely suited for. The diagram

below shows some of the components of this common solution pattern.