Showing papers on "Semantic interoperability published in 1992"

Semantic Data Modeling

Abstract: Part 1 Overview: introduction classical approaches modern approaches. Fundaments - basic principles semantic concepts semantic operations semantic integrity. Part 2 Design: design methods conceptual design screen design data manipulation physical design. Part 3 Case studies: case study 1 - bank case study 2 - vehicle registration case study 3 - working conference.

Interoperability between Database Models

Abstract: This paper addresses the problem of interoperability between existing data base models. The architecture of the federation taken here contains two local data models: an object-oriented data model (e.g., O 2 [17]) and a logic-based model (e.g., Logres [6]). A canonical data model which combines the concepts used in object and logic-based models is needed to achieve such interoperability. We propose in this paper a canonical data model, called ERC+ [30], issued from an extension of semantic data models (e.g., ERC+ [27] to include representing dynamic aspects of data base applications as formulae of a logic-based language. ERC++ provides powerful concepts for representing data and behaviour stored in local databases in a convenient and flexible way. Additionally, the translation mechanism between the ERC++ data model and local data models is based on the manipulation aspect. The process of interoperability is split into static and behaviour interoperability. The static interoperability is based on the concept of access path preserving. The behaviour interoperability is based on the decomposition of operations into basic operations which relate to a single class.

Interoperability between new Database Languages

Abstract: Keywords: interoperability Reference LBD-CONF-1992-004 Record created on 2007-01-16, modified on 2016-08-08

Reuse library interoperability: bringing the concept into reality

Abstract: The Reuse Library Interoperability Group (RIG) will adopt a straightforward approach to presenting ita efforts, The chair of the Executive Board will first describe what the RIG is, how it is organized, and the overall problem that the RIG is trying to solve. The chair of the Technical Committee will then give an overview of the work of the individual technical committees. Each panel member, representing a particular RIG committee, will present the group’s work in grater detail, explaining what parts of the problem the group is addressing, articulating its approach to solving the problem, and reviewing its progress to date. Specifically, the panel will

Semantic network architectures: an evaluation

Abstract: Semantic networks as a means for knowledge representation and manipulation are used in many artificial intelligence applications. A number of computer architectures, that have been reported for semantic network processing, are presented in this paper. A novel set of evaluation criteria for such semantic network architectures has been developed. Semantic network processing as well as architectural issues are considered in such evaluation criteria. A study of how the reported architectures meet the requirements of each criterion is presented. This set of evaluation criteria is useful for future designs of machines for semantic networks because of its comprehensive range of issues on semantic networks and architectures.

Multi-vendor interoperability through SQL access

Abstract: Several years ago, there was no general approach to providing widespread interoperability between databases and database tools from different sources. The interoperability solutions that did exist were primarily achieved through specific, point solutions that provided interoperability between a single pair of vendors. At the time, many companies were faced with the expensive and daunting possibility of creating tid supporting a number of these pair-wise solutions. The SQL Access Group was formed in order to provide common solutions to the multi-vendor interoperability and portability problems. Its primary foeus is to accelerate existing efforts in official standards bodies, such as ANSI and ISO, by providing input to the standards process. Unique to the group, is the concept of prototyping and demonstrating these standards in order to ensure their viability. The SQL Access Group is currently working in three areas: the SQL language (API), client-server formats and protocols (FAP), and a dynamic SQL-oriented, procedure call-based interfaee (CLI). A common definition for the SQL language is essential for application portability and for client-server interoperability, because SQL statements are communicated between client and server. The SQL Aeeess embedded SQL definition is based on SQL-89 with extensions from SQL2, some of which were originally proposed by SQL Aeeess. The spec%ication is published by X/open in cooperation with SQL Aeeess. Client-sewer communication is achieved through the use of formats and protocols that are based on the 1S0 Remote Database Aeeess (RDA) standard over an 0S1 network. The SQL Aeeess Group was instrumental in providing essential input into the RDA standard. The group is also finalizing a mapping of the formats and protocols for TCP/lP networks. The SQL Access Call-Level Interfaee (CLI) is a procedure call-based interface that will shortly be published as an X/open “snapshot” specification. It is intended to support the requirements of “shrink-wrapped” software vendors, and others wishing to use an alternative to embedded SQL, SQL Aeeess members are currently working towards products that implement one or more of the SQL Access standards. Digital Equipment Corporation is expecting to ship a SQL Access (FAP) Server in the near future. Microsoft Corporation has recently announced their Open Database Connectivity (ODBC) architecture, that has the SQL Aeeess CLI at its core. They expeet to ship ODBC in June 1992. Additional SQL Access-based products are expected from these and other sources in late 1992 and early 1993. The talk will deseribe The SQL Aeeess Group and elaborate on the areas in which the group is working. The relationship between the work of The SQL Access Group and the 1S0 SQL2 and Remote Database Access (RDA) standards will be explaind as well as their involvement with X/open. In addition, some parallels with other significant remote database access approached will be illustrated.

Interoperability with Other Navigation Systems

Abstract: Standing alone, the Navstar GPS provides extremely versatile and accurate position-fixing, but, if it can be combined with various other navigation systems, its versatility and accuracy can be further increased. In particular, a successful marriage between the former Soviet Union’s Glonass constellation and the American GPS could yield extremely beneficial results.