Terance Dias

Web services are gaining acceptance as the prime technology used to interconnect disparate applications and ease interoperability between heterogeneous and autonomous systems both for internal and external integration. The variation of contexts in which shared Web services could be used and the resulting variation in functional and Quality of Service (QoS) requirements motivate extending Web services management platforms with more sophisticated control mechanisms to cater to differentiated service offerings. However, most Web services platforms are based on a best-effort model, which treats all requests uniformly, without any type of service differentiation or prioritization. This article explores the typical generic requirements for differential QoS support in Web services management. We then evaluate various emerging management frameworks to assess the degree to ... (more)

Adding Reliability to Occasionally Connected Computing in Mobile Devices

Mobile devices use wireless networks that have limited range. Therefore, they may not always be connected to a network. This kind of intermittent connectivity in mobile devices has been one of the factors inhibiting enterprise-level adoption of pervasive mobile applications. Occasionally Connected Computing (OCC) deals with this problem. The challenge that mobile application developers face today is to develop applications that will let users interact uniformly with the application regardless of the connection status. In the recent past, Web Services have appeared as a key techn... (more)

Enabling Offline SOA Using SDO and ADO.NET

Enterprises frequently have to deal with part of their infrastructure that doesn't have the privilege of uninterrupted connectivity. Such system environments designed using Service Oriented Architecture (SOA) need a way to manage uncertain connectivity. SOA as an architectural paradigm depends on a set of services providing business functionality. These services may be distributed over different domains or geographical boundaries. SOA, characterized by independent and self-sufficient services primarily needs to handle the issue of data inconsistency that may result from a disconn... (more)

Enabling Offline SOA Using SDO and ADO.NET

Enterprises frequently have to deal with part of their infrastructure that doesn't have the privilege of uninterrupted connectivity. Such system environments designed using Service Oriented Architecture (SOA) need a way to manage uncertain connectivity. SOA as an architectural paradigm depends on a set of services providing business functionality. These services may be distributed over different domains or geographical boundaries. SOA, characterized by independent and self-sufficient services primarily needs to handle the issue of data inconsistency that may result from a disconn... (more)