The WS-DAI family of specifications for web service data access and integration

Abstract

This month, we are pleased to provide to our readers a column that addresses an important aspect of grid computing: data access. Grid computing is important and relevant because it provides middleware that supports secure and managed sharing of networked computational resources. This is valuable because many activities involve collaborations that stand to benefit from more efficient and systematic access to computational and data resources across management domains. The GGF is important because the development of grids depends on shared abstractions and consistent interfaces; the GGF is the principal standards body for grid computing. For the most part, the GGF is developing web service standards for resource management and use that can be used relatively independently or as part of a wider service-based architecture. The authors of the note belong to two overlapping groups: the chairs of the GGF Data Access and Integration Services Working Group, and the members of the Design Team that was responsible for writing the specifications, and for evolving them in the light of input from other members of the working group and the wider community.

A Semantically Enabled Service Architecture for Mashups over Streaming and Stored Data

“…A data source may publish one or more datasets, as per the ws-dai standard [2]. Lines 4 and 5 show that the cco sensor data service publishes multiple datasets including the two identified as #envdata_SandownPier_Tide and #envdata_SandownPier_Met.…”

How Physical Objects and Business Workflows Can Be Correlated

“…Besides these standards there are many proprietary Web Service and REST interfaces for devices, like e.g. [23], [24]. In general there are two main concepts on how sensor data can be made accessible as a Web Service based stream.…”

The design and implementation of OGSA-DQP: A service-based distributed query processor

“…This activity on metadata management, combined with the fact that an increasing number of the applications that use the Grid make extensive use of database technology, has increased awareness of the need to integrate database access interfaces with Grid middleware, both in terms of access to existing data resources and the wider management of data in Grid settings [2]. Community interest in Grid database services is reflected in the fact that the OGF has have provided interfaces for accessing databases in a Grid setting [5].…”

“…[5,17]). To simplify somewhat, a Gridenabled database service provides a service-based interface to a database as part of a wider collection of services for managing and using resources.…”