How IT in Financial Institutions can use SOA to support end to end business processes, shorten change cycles, and provide better business insight and auditability.

It is critical for the success of an enterprise wide system to have inbuilt capacity and resiliency to efficiently service its clients. Many such systems are increasingly becoming SLA based and hence there is an implicit assumption that the systems will be able to scale as and when the business demands change as well as be reliable from an availability perspective. In this session, we look at some of the common sense and practical approaches to addressing these issues.

Existing business scenarios need a global enterprise system which provides unified information and agile solution with greater ease and simplicity. And inherently needs to cater the requirements of a constantly changing environment like business environment changes, user requirement changes and technical environment changes. With the evolution of SOA and semantic web services, enterprise solution heeds to the limitations of conventional enterprise systems by providing data convergence and concept reutilization with intelligence.
This talk takes you through a case study simulating semantic web paradigm over a leasing business system. It also portrays the various advantages and explains the hurdles in accepting the semantic web technology.

Web2.O represent the next transition in the evolution of web applications; they promise to restore the richness, interactivity and usability lacking in many web applications. As with any technological transition, for an enterprise this implies that there are new opportunities to be explored and new challenges to be negotiated. To maximize the benefits of Web2.O, an enterprise should assess: How does Web2.O fit in a SOA based enterprise architecture stack? What are the business benefits that enterprises will accrue by adopting Web2.O and what are its challenges? SOA has benefited enterprises with benefits such as standardized patterns, interoperability, centralized governance, easy integration etc. Almost all industry domains have benefited from SOA strategy in order to build more flexible and malleable IT architecture involving re-usable services. On the other hand, Web 2.0 practices like communities and folksonomy are much centered around end-users. They involve frequent communication among large consumers dispersed all around the world over the Internet. They have become extremely popular among internet users. This brings the interesting idea of bringing enterprise products i.e. services and consumer-savvy applications from Web 2.0 together.
This talk takes you through a case study simulating semantic web paradigm over a leasing business system. It also portrays the various advantages and explains the hurdles in accepting the semantic web technology.

Web Services have wide potential in different application scenarios like application integration, data integration and system management. A significant number of solutions have been proposed in the literature for composition and execution of web services (WSCE), some focused on specific scenarios. In order to understand the characteristics of autonomy and adaptation in web services, one needs to systematically analyze the strengths and weaknesses of each type of these solutions. To this end, we present a framework that includes a formalization of the WSCE process, a classification of existing solutions into four distinct categories, and an in--depth evaluation of these approaches. We believe that the proposed framework offers a fresh perspective on WSCE systems, and is a right step in the direction of efficiently creating, executing and adapting composite Web services.

Beyond the publish-find-bind, there is no general consensus on the underlying principles of Service Oriented Computing (SOC). In this talk, we explore how the OO principles of classes, sub-classes, aggregation and polymorphism could provide good foundation for SOC. This is despite the fact that there is wide disagreement about the difference between objects and services. We provide the notions of service types and service instances as relating to classes and objects. The service type consists of profile types describing the operations, model description, and service state types. The service instance consists of service type identification, state, profile and grounding. The notions of service type and service instance are used for building service composition and service specialization. Simple examples of help-desk application are used for explaining how these concepts are useful in building Service Oriented Architecture (SOA).

This is a joint work with Arun Kumar and Anindya, IBM-IRL, New Delhi

Enterprise middleware systems typically consist of a large cluster of machines with stringent performance requirements. Hence, when a performance problem occurs in such environments, it is critical that the health monitoring software identifies the root cause with minimal delay. A technique commonly used for isolating root causes is rule definition, which involves specifying combinations of events that cause particular problems. However, such predefined rules (or problem signatures) tend to be inflexible, and crucially depend on domain experts for their definition. In this talk we present a method that automatically generates change point based problem signatures using administrator feedback, thereby removing the dependence on domain experts. The problem signatures generated by our method are flexible, in that they do not require exact matches for triggering, and adapt as more information becomes available. Unlike traditional data mining techniques, where one requires a large number of problem instances to extract meaningful patterns, our method requires few fault instances to learn problem signatures. We demonstrate the efficacy of our approach by learning problem signatures for five common problems that occur in enterprise systems and reliably recognizing these problems with a small number of learning instances.

The web service is a main working pattern and a significant application model for next generation Internet application. The service-oriented architecture is a very promising architecture for practical implementation of the next generation geographical information systems. The paradigm for Spatial Data Infrastructure (SDI) is shifting towards Service Driven Infrastructure (SDI). The presentation talks about the usability service-oriented architecture for constructing a distributed and web service enabled geographical information platform. It gives a brief overview of the OGC geospatial service standards. The web service framework was applied to the GIS system design and implementation. GIS web services were designed to provide the hosted spatial data and GIS functionality to integrate the customized GIS applications to perform basic geo-processing tasks without maintaining GIS tools or the associated geographical data. The system architecture, functions, system integrations have been pointed out. It has an important application prospect in the GIS tools development and application.

An introduction to Tibco's products and associated standards (JBI and SCA) that simplify the design, testing, deployment and management of solutions based on SOA.

This talk aims to briefly provide an overview of REST architecture and implementation, with specific reference to its utility for Web Services.

The term Web Services has generally been used to refer to SOAP services operating over HTTP. This has been the predominant flavor of Web Services in usage till now. While providing a lot of flexibility and interoperability over different platforms, SOAP is a very heavy protocol, consuming a high level of network bandwidth, as well as being difficult to configure and deploy effortlessly in implementation environments. These factors and other drawbacks have led SOAP Web Services to be tied mainly to enterprise applications, without being exposed to normal users.

REST architecture promises a change to all that. By utilizing the power of the normal HTTP commands (POST, PUT, GET, DELETE) as well as building systems similar in architecture to normal Web Applications, REST allows end users to utilize the power and flexibility of Web Services through normal interface paradigms (Web Sites etc) and clients (browsers, aggregators etc.) Moreover, the lightweight requirements, performance and scalability inherent in REST applications have enabled them to be widely accepted across the spectrum.

The talk will mainly cover design principles, advantages, concerns, REST vis-a-vis SOAP, a simple use case and a few real world usage examples.