479 research outputs found
Virtue: Virtual Enterprises for Information Markets
No full textAn essential part of a modern economy is an information market. In this market, information products are being traded in countless ways. Information is bought, modified, integrated, incorporated into other products and then sold again. Usually, the manufacturing of an information product requires the collaboration of several participants. A virtual enterprise is a community of business entities that collaborate on the manufacturing of new products. This collaboration is often ad hoc, for a specific product only, after which the virtual enterprise may dismantle. The virtual enterprise paradigm is particularly appealing for modeling collaborations for manufacturing information products, and in this paper we present a new model, called VirtuE, for modeling such activities
Blind Custodians: A Databases service architecture that supports Privacy without Encryption
No full textSession A: Courage and Creativity in Legal Scholarship
No full textLed by Shari Motro, University of Richmond School of La
Evolving VirtuE
No full textOne of the most attractive aspects of virtual enterprises is their agility: the inherent ability to adapt and evolve in response to changing market conditions.
Evolving VirtuE is a formal framework within which such agility can be realized. Through the concepts of enterprise time, activity logging, and log mining, the recent behavior and performance of an enterprise may be studied,and corresponding evolutionary steps can be induced. These steps may be intended to benefit the operation of individual enterprise members, as well the enterprise as a whole. In addition, we examine enterprise creation, a period of rapid evolution that concludes when the enterprise reaches stability and begins transacting its business activities.One of the most attractive aspects of virtual enterprises is their agility: the inherent ability to adapt and evolve in response to changing market conditions.
Evolving VirtuE is a formal framework within which such agility can be realized. Through the concepts of enterprise time, activity logging, and log mining, the recent behavior and performance of an enterprise may be studied,and corresponding evolutionary steps can be induced. These steps may be intended to benefit the operation of individual enterprise members, as well the enterprise as a whole. In addition, we examine enterprise creation, a period of rapid evolution that concludes when the enterprise reaches stability and begins transacting its business activities.Monograph's chapter
ViewFinder: an Object Browser
No full textViewFinder is a graphical tool for browsing in databases that provides a flexible, yet intuitive environment for exploratory searches. The design approach has been to provide maximum functionality and generality without sacrificing simplicity. The constructs of ViewFinder’s external model are essentially object-oriented: class and token objects, membership relationships between tokens and classes, generalization relationships between classes, inheritance, and so on. This external model is based on an internal model which resembles a semantic network. Such a network may be extracted from a variety of data models, including object-oriented, entity-relationship and extended relational models. This architecture gives ViewFinder a large degree of model independence. The main construct of the external model are displays of objects (either classes or tokens), called views. Commands are available for efficient traversal of the database, displaying views of any class or token. To speed up repetitive searches, views may be synchronized: the user sets up several views, linked in a tree-like structure, so that when the information displayed in the root view is modified (e.g. scrolled by the user), the contents of the other views change automatically. Additional commands are available to search, order, aggregate and select the information displayed in a view, thus providing a simple query facility
Letter From Tel Aviv: The View From the Bubble
No full textIn this 2006 o-ed, Shari Motro paints the view of war from her former home in Tel-Aviv, which to her seemed like a bubble of safety within a country in chaos
Grid-VirtuE: a layered architecture for grid virtual enterprises
No full textA grid virtual enterprise is a community of independent enterprises concerned with a particular sector of the economy. Its members (nodes) are small or medium size enterprises (SME) engaged in bilateral transactions. An
important principle of a grid virtual enterprise is the lack of any global "guiding force", with each member of the community making its own independent decisions.
In this paper we describe Grid-VirtuE, a three-layer architecture for grid virtual enterprises. The top layer of the architecture, representing its ultimate purpose, is an environment in which grid virtual enterprises can be modeled and implemented. This layer is supported by middleware infrastructure for grids, providing a host of grid services, such as node-to-node communication, bilateral
transactions, and data collection. The bottom layer is essentially a distributed data warehouse for storing, sharing and analyzing the large amounts of data generated by the grid. Among other functionalities, the warehouse handles the dissemination of data among the members of the grid; it confronts issues of data magnitude with an aging mechanism that aggregates old data at a lower level of detail; and it incorporates privacy-preserving features that retain the confidentiality of individual members. Warehouse information is also used for data and process mining, aimed at analyzing the behavior of the enterprise, and subsequently inducing evolutionary changes that will improve its performance.A grid virtual enterprise is a community of independent enterprises concerned with a particular sector of the economy. Its members (nodes) are small or medium size enterprises (SME) engaged in bilateral transactions. An
important principle of a grid virtual enterprise is the lack of any global "guiding force", with each member of the community making its own independent decisions.
In this paper we describe Grid-VirtuE, a three-layer architecture for grid virtual enterprises. The top layer of the architecture, representing its ultimate purpose, is an environment in which grid virtual enterprises can be modeled and implemented. This layer is supported by middleware infrastructure for grids, providing a host of grid services, such as node-to-node communication, bilateral
transactions, and data collection. The bottom layer is essentially a distributed data warehouse for storing, sharing and analyzing the large amounts of data generated by the grid. Among other functionalities, the warehouse handles the dissemination of data among the members of the grid; it confronts issues of data magnitude with an aging mechanism that aggregates old data at a lower level of detail; and it incorporates privacy-preserving features that retain the confidentiality of individual members. Warehouse information is also used for data and process mining, aimed at analyzing the behavior of the enterprise, and subsequently inducing evolutionary changes that will improve its performance.Monograph's chapter
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