eGovSM Metadata Model: Towards a Flexible, Interoperable and Scalable eGovernment Service Marketplace

2005 ◽  
Author(s):  
E. Mugellini ◽  
O.A. Khaled ◽  
M.C. Pettenati ◽  
P. Kuonen
Keyword(s):  
Metadata Model ◽  
Egovernment Service

Universal Data Warehousing Based on a Meta-Data Modeling Approach

2003 ◽  
Vol 12 (03) ◽  
pp. 325-363 ◽  
Author(s):  
Joseph Fong ◽  
Qing Li ◽  
Shi-Ming Huang
Keyword(s):  
Data Warehouse ◽  
Data Warehousing ◽  
Object Oriented ◽  
Data Models ◽  
Heterogeneous Databases ◽  
Materialized Views ◽  
Prototype System ◽  
Relational View ◽  
Metadata Model ◽  
Star Schema

Data warehouse contains vast amount of data to support complex queries of various Decision Support Systems (DSSs). It needs to store materialized views of data, which must be available consistently and instantaneously. Using a frame metadata model, this paper presents an architecture of a universal data warehousing with different data models. The frame metadata model represents the metadata of a data warehouse, which structures an application domain into classes, and integrates schemas of heterogeneous databases by capturing their semantics. A star schema is derived from user requirements based on the integrated schema, catalogued in the metadata, which stores the schema of relational database (RDB) and object-oriented database (OODB). Data materialization between RDB and OODB is achieved by unloading source database into sequential file and reloading into target database, through which an object relational view can be defined so as to allow the users to obtain the same warehouse view in different data models simultaneously. We describe our procedures of building the relational view of star schema by multidimensional SQL query, and the object oriented view of the data warehouse by Online Analytical Processing (OLAP) through method call, derived from the integrated schema. To validate our work, an application prototype system has been developed in a product sales data warehousing domain based on this approach.

scholarly journals Lifting a Metadata Model to the Semantic Multimedia World

2011 ◽  
Vol 7 (1) ◽  
pp. 199-208 ◽  
Author(s):  
Gaetan Martens ◽  
Ruben Verborgh ◽  
Chris Poppe ◽  
Rik Van De Walle
Keyword(s):  
Metadata Model

scholarly journals Using a Core Scientific Metadata Model in Large-Scale Facilities

2010 ◽  
Vol 5 (1) ◽  
pp. 106-118 ◽  
Author(s):  
Brian Matthews ◽  
Shoaib Sufi ◽  
Damian Flannery ◽  
Laurent Lerusse ◽  
Tom Griffin ◽  
...  
Keyword(s):  
Large Scale ◽  
Materials Science ◽  
Production Quality ◽  
Scientific Study ◽  
Quality Data ◽  
Structural Elements ◽  
Metadata Model ◽  
The Core ◽  
Future Developments ◽  
The Relationship

In this paper, we present the Core Scientific Metadata Model (CSMD), a model for the representation of scientific study metadata developed within the Science & Technology Facilities Council (STFC) to represent the data generated from scientific facilities. The model has been developed to allow management of and access to the data resources of the facilities in a uniform way, although we believe that the model has wider application, especially in areas of “structural science” such as chemistry, materials science and earth sciences. We give some motivations behind the development of the model, and an overview of its major structural elements, centred on the notion of a scientific study formed by a collection of specific investigations. We give some details of the model, with the description of each investigation associated with a particular experiment on a sample generating data, and the associated data holdings are then mapped to the investigation with the appropriate parameters. We then go on to discuss the instantiation of the metadata model within a production quality data management infrastructure, the Information CATalogue (ICAT), which has been developed within STFC for use in large-scale photon and neutron sources. Finally, we give an overview of the relationship between CSMD, and other initiatives, and give some directions for future developments.    

Requirements Analysis and General Functional Model of Seamless, Citizen-Oriented Service Delivery

2011 ◽  
pp. 2425-2451
Author(s):  
Maria Chiara Pettenati ◽  
Elena Mugellini ◽  
Omar Abou Khaled
Keyword(s):  
Service Delivery ◽  
Functional Model ◽  
Shared Services ◽  
Future Trends ◽  
Government Service ◽  
Services Delivery ◽  
Egovernment Service ◽  
The Impact ◽  
Government Level ◽  
Open Issues

Seamless services provide citizens with what they need to know in a particular topic without having to know which government level or agencies they must contact to get it. Seamless services meet efficiency targets, reduce costs and respond to citizen demands for improved services; they help governments to be more citizen-centered, outcome-oriented, efficient and accountable. This chapter outlines main requirements for the delivery of seamless services and presents a general functional model (e-government service marketplace) for the delivery of shared services to citizens at transaction level (i.e. supporting a complete online handling of a service). The main functionalities of the egovernment service marketplace are analyzed in details. Advantages, disadvantages and the impact of this concept on the three fundamental axes: social, economic and technical are discussed as well. The chapter ends with some insights on future trends and open issues about seamless services delivery and enabling systems.

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