GVB Subrahmanyam

Traditionally business process services are built on applications that are running within the enterprise to fulfill business demands. In the recent past, the concept of SaaS Clouds gained significance with services being hosted in a common cloud environment within the enterprise or outside the enterprise. In this article, we propose an innovative implementation of Cloud-based SaaS Enterprise Frameworks in "Corporate Action Events" Processing. A lot of discussions have appeared on how enterprise architecture services and cloud-based services, namely SaaS, are connected within an organization and how these architectural styles are better leveraged to fulfill business domain demands. [1] Enterprise architecture often describes the blueprint of applications and strategies within an enterprise, whereas enterprise SOA is more about enterprise services and provides integr... (more)

Enterprise Cloud Services Architecture

Enterprise services are built on applications that are running within the enterprises to fulfill the business demands. In the recent past, the concept of services in a cloud environment gained significance with services being hosted in a common cloud environment within the enterprise or outside the enterprise. In this article, I described the various steps involved in moving services from an enterprise level to cloud-based environment as part of a cloud implementation. Traditionally an organization's Enterprise Services Architectures are considered in terms of Business Architect... (more)

Reference Architecture for Securing Web Services in a Heterogeneous Environment

Web Services have played a key role in integrating heterogeneous applications, particularly in cross domains. As part of identity management, Security Token Services are used for request and response tokens. However, we need multiple communication channels among Security Token Services when multiple applications in different domains try to reach other Web Services. In this article we have proposed a Master Security Token Service (MSTS) that can act as a broker for all security authorization without duplicating the effort at every domain. In a world of heterogeneous systems where ... (more)

Migrating from WebLogic 6.1 to 8.1

BEA's name is synonymous with the application server. Most applications running on Unix in North America run on BEA's WebLogic server, particularly financial apps. The current stable WebLogic 8.1 version does a lot more than earlier versions. Migrating to new versions is always challenging and risky, but is done for efficiency and new capabilities, and to stay current with a vendor's products and support. Most applications developed on the WebLogic 6.1 used JDK 1.3 or earlier. A move from WebLogic 6.1 to 8.1 means making our applications compatible with JDK 1.4.1 or higher since... (more)

Performance Improvement in a J2EE Application

Java is hot. Just nine years old, it has become one of the leading development environments in the world. Millions of programmers and thousands of companies use it, and half of all IT managers expect to deploy J2EE applications this year. But Java's popularity hasn't necessarily made it easy for the growing population of Java code jockeys. Ever-shortening production cycles have kept the heat on programmers, who increasingly work in large teams to meet production milestones. And every day those teams come face-to-face with an immutable law of software development: the more code y... (more)