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| | Schema - Wikipedia, the free encyclopedia |
 | | In computer science, a schema is a model. | | | The mental representation of a concept can be assimilation to match an existing schema (representing the concept according to a preexisting schema), or accommodation (modifying an existing schema to adapt to the environment). | | | This includes only what is required for some narrow range of actions; e.g., a library card catalogue schema asks librarians only to provide enough information about the book to help library users decide if they want to browse through it, and if so, how to find it. |
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http://en.wikipedia.org/wiki/Schema
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| | Month Year Issue |
| | Factor (8), the developing of a conceptual model on the basis of those relevant constituents, and Factor (9), the physical representation of it, are, in practice, the two proper components of the construction of the conceptual schema. | | | Conceptual modeling is the description of information systems on the meta-level, where conceptual processes, model constructions and knowledge representations play an essential role. | | | On the other hand, conceptual modeling can be characterized as an activity the goal of which is to develop higher level concepts, tools and techniques for all areas in computer science. |
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http://www.inconcept.com/JCM/January2002/esko.html
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| | [No title] |
| | A conceptual model is a language that is used to describe conceptual schemas. | | | Logical Design Input: conceptual schema Output: logical schema Logical schema is a description of the structure of the database that can be processed by the DBMS software. | | | Physical Design Input: logical schema Output: physical schema A physical schema is a description of the implementation of the database in secondary memory. |
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http://www.ait.unl.edu/zlee/db/conceptualmodel.doc
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| | GIS Representations and Interoperability |
| | The global conceptual schema needs only to parse and tag the three elements of geospatial information, and it is up to the user or database to restructure them in the way that suits their purposes. | | | As a result, the primary objective of the global conceptual schema for interoperable geospatial information is to provide a coherent family of constructs representing abstract objects in a structural manner and to encapsulate the structure in these constructs. | | | With the global conceptual schema, communication among users and databases can be performed by inquiring the content and semantic structures of geospatial information instead of low-level data formats or data structures. |
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http://www.ncgia.ucsb.edu/conf/interop97/program/papers/yuan/yuan.html
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| | Systematic Hypermedia Application Design with OOHDM |
| | Nodes are defined as object-oriented views of conceptual classes defined during conceptual design, using a query language similar to the one in [17], allowing a node to be defined by combining attributes of different related classes in the conceptual schema. | | | In this case the conceptual model is finally implemented using an object-oriented language and navigational classes are instantiated from the framework (see [25, 4]). | | | Figure 6 shows (a simplified version of) the conceptual schema for the example application, where, for the sake of conciseness, we have not shown all attributes of all classes. |
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http://www.cs.unc.edu/~barman/HT96/P52/section3.html
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| | Syntactic and conceptual schemas |
| | For example, in a relational database, the conceptual schema declares how data is organized into tables and columns, what the data types of each column are, what the primary key / foreign key relationships between the tables are, and so on. | | | Notice that the storage engine is translating here between the conceptual schema (which uses the concept of table) and the physical schema (which describes how data is stored on disk). | | | In both cases, an XML schema language (including the DTD language) can be viewed as a conceptual schema language as well as a physical schema language. |
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http://www.stylusstudio.com/xmldev/199908/post20200.html
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| | [No title] |
| | Conceptual Schema (conceptual level) hides the details of storage structure uses conceptual/implementation data models 3. | | | An Internal Schema (internal level) describes physical storage structure related to the physical data model 2. | | | A Conceptual Schema (conceptual level) describes whole database structure data types, constraints, user operations, ¡ % # ’ " ' H ’ " * N ’ " % # ' H * N ó * 2 D B M S A r c h i t e c t u r e ( c o n t ) ¨L 2. |
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http://ils.unc.edu/~elliv/inls56/notes/Lecture2.ppt
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| | Conceptual Graph Standard |
| | A conceptual relation whose semantics may be computed or otherwise determined by an IT system external to the current knowledge base. | | | A conceptual relation or relation label of valence n is said to be n-adic; monadic is synonymous with 1-adic, dyadic with 2-adic, and triadic with 3-adic. | | | A 0-adic conceptual relation is logically equivalent to the proposition stated by its defining conceptual graph. |
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http://users.bestweb.net/~sowa/cg/cgstandw.htm
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| | TDAN Hay - Data Model Views |
| | And while the conceptual schema often is the starting point for physical data base design, it is very difficult to keep the link current as requirements change. | | | The design of tables and columns became part of the logical schema design, just as the design of networks and hierarchies were part of the logical schema design under earlier technologies. | | | Finally, the internal schema represents the structure of data as they are stored physically on the computer. |
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http://www.tdan.com/i012ht01.htm
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| | No Title |
| | We can therefore change the mapping as the physical schema changes, e.g., change a data type or use a different access method and make these changes transparent to the conceptual schema. | | | Conceptual schema -- This could be the EDM. | | | Logical data independence (LDI) is the ability to change the conceptual schema without necessarily changing each application's view or changing the external schema. |
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http://www.rhsmith.umd.edu/is/aqiuol/721f97/lectmod1.html
(603 words)
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| | [No title] |
| | Conceptual schema can be changed without changing application: Mapping from external to conceptual must be changed. | | | An external schema specifies a view of the data in terms of the conceptual level. | | | A view is computed when accessed (not stored). |
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http://www.cs.nmsu.edu/~tson/classes/fall03-482/class4.ppt
(380 words)
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| | SSHRIIc |
| | Third, the schema provides for indicators of the institutional environment in which SSH research is conducted, and, the Input/Stock, i.e. | | | The proposed conceptual schema should be considered relevant at the international, national, provincial and local. | | | 2.01 Figure 1 provides graphic representation of a conceptual schema for the collection, development and display of Social Science and Humanities Research Impact Indicators. |
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http://www.culturaleconomics.atfreeweb.com/sshriic.htm
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| | CONCEPTUAL SCHEMA |
| | conceptueel schema (conceptual mode, schema), conceptueel gegevensmodel (conceptual mode, schema), schema (model, pattern, schedule, scheme). | | | schema (blank, form, model, pattern, plan, process chart, schedule, scheme, time-able, timetable, time-table), databasschema (conceptual mode, intension, schema, scheme). | | | Translations for "CONCEPTUAL SCHEMA"; alternative meanings/domain in parentheses. |
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http://www.websters-online-dictionary.org/definition/CONCEPTUAL+SCHEMA
(190 words)
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| | Conceptual Schema Qualities |
| | Readability: the schema is easy to interpret and convey the requirements in a natural way; | | | Modifiability: the schema may be easily modified if requirements are changed; | | | Correctness: the schema correctly (syntactically and semantically)represents the initial requirements; |
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http://www.dis.uniroma1.it/~catarci/DBslides/Mod3L1-2-3/tsld031.htm
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| | Conceptual schema - Wikipedia, the free encyclopedia |
| | A conceptual schema, or High-level data model or conceptual data model, is a map of concepts and their relationships, for example, a conceptual schema for a karate studio would include abstractions such as student, belt, grading and tournament. | | | The next step towards creating a database design, after a conceptual schema is produced, is a logical schema. | | | This list is incomplete; you can help by expanding it. |
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http://en.wikipedia.org/wiki/Conceptual_schema
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| | CIKM: CIKM '94, Introducing semantics in conceptual ... |
| | Nezghborhood/ Conceptual Query A nswemng with Imprecise/Incomplete Data. | | | It proposes a semantic retrieval mechanism based on imprecise queries for the reuse of conceptual schema components. | | | This paper deals with conceptual schema construction in terms of reuse and the respective semantic requirements. |
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http://widit.slis.indiana.edu/irpub/CIKM/1994/cite7.htm
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| | VLDB 1976: 13-25 |
| | The conceptual schema is presented as a tool of data base administration. | | | One, to provide maximum derivability of information from the data, assumes an unstructured, non-redundant conceptual schema, third normal conceptual record sets, and permits arbitrarily structured external records to be defined in terms of combinations of conceptual records. | | | The other, to provide dynamic data independence during attribute migration and control over the information that can be derived from the data, assumes a highly structured, highly redundant conceptual schema, third normal,...,unnormalized conceptual record sets, and requires external records to be subsets of predefined conceptual records. |
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http://www.vldb.org/dblp/db/conf/vldb/Meltzer76.html
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| | Conceptual schema - Wikipedia, the free encyclopedia |
| | A conceptual schema, or High-level data model or conceptual data model, is a map of concepts and their relationships, for example, a conceptual schema for a karate studio would include abstractions such as student, belt, grading and tournament. | | | The next step towards creating a database design, after a conceptual schema is produced, is a logical schema. | | | This list is incomplete; you can help by expanding it. |
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http://www.wikipedia.org/wiki/Conceptual_schema
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| | Month Year Issue |
| | It is important to note that while the normal forms are subsets of each other (for example, a schema in 3NF is in 2NF by definition) it is not necessary to move from one to the other in a sequential fashion. | | | Because of this, dependencies and symmetric constraints are rooted out right away, and the resulting (generated) logical and physical schemas are in "optimal normal form" (assuming the fact types are "elementary" [Becker]). | | | To correct this schema, we need to create additional tables and decompose the partial dependencies into these new tables, as in figure 4. |
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http://www.inconcept.com/JCM/June1999/becker.html
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| | JFS Biography |
| | He is a fellow of the American Association for Artificial Intelligence, and he has taught courses at the IBM Systems Research Institute, universities (Binghamton, Polytechnic, and Stanford), and summer institutes (Linguistic Society of America and UQAM Cognitive Science). | | | "Conceptual graphs as a universal knowledge representation," Computers and Mathematics with Applications, vol. | | | Conceptual Structures: Information Processing in Mind and Machine, Addison-Wesley, Reading, MA 1984. |
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http://www.jfsowa.com/pubs
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| | IngentaConnect Automated Query Formulation Using an Entity-Relationship Conceptu... |
| | Significant effort is expended in developing a high–level conceptual schema for a relational database. | | | However, critical knowledge is often discarded when the conceptual schema is mapped to a set of relation schemas. | | | This article demonstrates how an Entity–Relationship (ER) conceptual schema can be used by a high–level interface to formulate queries automatically. |
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http://www.ingentaconnect.com/content/klu/jiis/1997/00000008/00000003/00133780
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| | Tuning the Conceptual Schema |
| | If such changes are made after a database is in use, called schema evolution; might want to mask some of these changes from applications by defining views. | | | We may settle for a 3NF schema rather than BCNF. | | | We might denormalize (i.e., undo a decomposition step), or we might add fields to a relation. |
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http://db.cs.berkeley.edu/topics/cs186/public_html/lecs/chapter16/sld002.htm
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| | Conceptual Schema Name |
| | Enter the conceptual schema name to further refine the search. |
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http://march-hare.com/library/html/conc2p7p.htm
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| | An ontology for Conceptual Schema Language (ISO/CD TS 19103) using Protégé and OWL |
| | Ontology for Conceptual Schema Language (ISO/CD TS This is an ontology that represents the Conceptual Schema Language (ISO/CD TS 19103) developed using Protégé. | | | Please note: The metadata ontology was developed from Conceptual Schema Language (ISO/CD TS 19103). | | | An ontology for Conceptual Schema Language (ISO/CD TS 19103) using Protégé and OWL |
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http://loki.cae.drexel.edu/~wbs/ontology/iso-19103.htm
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| | CS 457 DB Design |
| | Conceptual database design (Conceptual Schema Design Transaction Design) | | | creating a conceptual schema and external schema in the data | | | - every user group define their own Conceptual Schema |
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http://cs.ua.edu/457/2000/design.htm
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| | Databases: Multidatabase Global Conceptual Schema |
| | With a Global conceptual schema you can see the interception between of Data and DataFlow's by functional areas. | | | I think when you design a IT system you need to have an easy way to look for the global conceptual schema. | | | I use to create Global schemas and smallest schemas by functional area. |
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http://www.experts-exchange.com/Databases/Q_10096784.html
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| | Colloquium Lex Wedemeijer |
| | These patterns were observed in operational conceptual schemas. | | | It shows that studying evolution in operational schemas opens up new and promising ways of improving data model theories and current design practices. | | | Conceptual schemas are described using some preferred data model theory. |
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http://www.cs.ru.nl/research/colloquium/col1999b/wedemeijer.html
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| | Conceptual Schema Design (cont’d) |
| | build a view (schema) for each user group | | | merge views into a global schema (Schema Integration) |
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http://www.ittc.ku.edu/~sgauch/647/s00/notes/Chxx1a/sld005.htm
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| | Citations: Terminology for the Conceptual Schema and Information System (SMEALSearch) - Pal,Rangaswamy,Giles,Debnath |
| | and updates may (conceivably) become expressed at a conceptual level, requiring interaction with conceptual structures rather than their implementation (such as relational database) NIAM [W90] is based on an analysis method for natural language, the query and constraint language RIDL [VvB82] | | | was developed for this purpose; similarly for ConQuer [BH96] for NIAM s successor methodology ORM [H01] For modeling business rules at a conceptual level, we adopt in this paper ORM (Object Role Modeling) as proposed by e.g. | | | Citations: Terminology for the Conceptual Schema and Information System (SMEALSearch) - Pal,Rangaswamy,Giles,Debnath |
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http://smealsearch2.psu.edu/context/21592/0
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| | Citations: A conceptual schema for a central patient database - Johonson, Friedman, Cimino, Clark, Hripcsak, Clayton ... |
| | Citations: A conceptual schema for a central patient database - Johonson, Friedman, Cimino, Clark, Hripcsak, Clayton (ResearchIndex) | | | In Proceedings of the 15th Annual Symposium on Computer Applications in Medical Care, pages 381--387. |
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http://citeseer.lcs.mit.edu/context/2330081/0
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| | [No title] |
| | Further, a variety of computer based design tools have been developed, many of which support a graphic representation of data and function schemas. ó D 7 ¨" Conclusion: Why Conceptual Design? ¡ # # $ ¨v The basic features of conceptual design are relatively simple and their understanding does not require much technical knowledge about database systems. | | | Users involved in the decision process are more willing to accept and use the information system. ¡ w Z w ó E 8 ¨" Conclusion: Why Conceptual Design? ¡ # # $ ¨ Conceptual design ease the understanding of data schemas and of applications that uses them. | | | Thus, users can easily learn them to guide designers to in their decisions and to ensure greater cooperation with designers. |
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http://www.cs.odu.edu/~lieu_v/db_design/DatabaseDesignOverview.ppt
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| | The Conceptual Schema |
| | Often the language of a conceptual schema is specified by enumerating only the types and attributes, since the other symbols and the grammar are seen as given implicitly. | | | A set of derivation rules and a set of integrity constraints. |
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http://www.dsv.su.se/~vadim/cmnew/chapter3/ch3_74.htm
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| | Publication Details - DR 05519 CP Geographic information - Conceptual schema language |
| | DR 05519 CP : Geographic information - Conceptual schema language | | | Publication Details - DR 05519 CP Geographic information - Conceptual schema language | | | Adopts ISO/TS 19103:2005 which provides rules and guidelines for the use of a conceptual schema language within the ISO geographic information standards. |
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http://www.standards.com.au/catalogue/script/details.asp?DocN=MSWD05519ATCRD
(102 words)
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| | Extending the LOINC Conceptual Schema to Support Standardized Assessment Instruments -- White and Hauan, ... |
| | Objective To extend the Clinical LOINC (Logical Observation Identifiers Names and Codes) semantic schema to support (1) the representation of common types of assessment instruments, and (2) the disambiguation of versions and variants that may have differing reliability and validity. | | | In contrast, the proposed extensions were able to meet both objectives, since they are derived from the Dialogix schema, which already performs those tasks. | | | Design Psychometric theory and survey research framework, plus an existing tool for implementing many types of assessment instruments (Dialogix), were used to identify and model the attributes of instruments that affect reliability and validity. |
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http://www.jamia.org/cgi/content/short/M1033v1
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| | AddALL.com - People Care in Institutions: A Conceptual Schema and Its Application |
| | People Care in Institutions: A Conceptual Schema and Its Application - by Yochanan Wozner - Paperback - List $27.95 | | | People Care in Institutions: A Conceptual Schema and Its Application | | | AddALL.com - People Care in Institutions: A Conceptual Schema and Its Application |
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http://www3.addall.com/detail/1560240121.html
(89 words)
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| | An Approach to Conceptual Schema design of Information Systems. |
| | An Approach to Conceptual Schema design of Information Systems. | | | Try our search engine which allows complex field-based queries. | | | For the most recent entries see the Petri Nets Newsletter. |
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http://www.informatik.uni-hamburg.de/TGI/pnbib/h/horndasch_a1.html
(61 words)
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| | IngentaConnect Context over content: ICPD, a conceptual schema for the building ... |
| | Context over content: ICPD, a conceptual schema for the building technology domain | | | IngentaConnect Context over content: ICPD, a conceptual schema for the building... | | | You may be required to register and activate access/purchase before you can obtain the full text. |
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http://api.ingentaconnect.com/content/els/09265805/2002/00000011/00000004/art00088
(95 words)
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| | Conceptual schema |
| | A Conceptual schema is a map of concepts and their releationships. | | | All is still licensed under the GNU FDL. | | | One day, wearying of servants, Miriam had gone to walk in the gardens that he owned to. |
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http://www.termsdefined.net/co/conceptual-schema.html
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| | Citations: Conceptual Schema Analysis: Techniques and Applications - Castano, Antonellis, Fugini, Pernici (SMEALSearch) ... |
| | provides more semi automatic heuristics, algorithms, and techniques for schema analysis and classification but still rely on designer interaction to achieve integration. | | | II.3.2 Schema Transformations A logical extension of semantic modeling is schema re engineering. | | | Citations: Conceptual Schema Analysis: Techniques and Applications - Castano, Antonellis, Fugini, Pernici (SMEALSearch) - Pal,Rangaswamy,Giles,Debnath |
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http://smealsearch.psu.edu/context/34928/0
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| | 1.2 |
| | The conceptual schema we have adopted directs our attention to each of these points in turn, as well as on the need to respond. | | | Students should be able to use the ideas, theories, and procedures from a variety of disciplines in order to conceptualize issues, solve problems, and provide service to others in daily life. | | | In a sense, the first three may be viewed as culminating in the last: we respond in contemporary situations according to our religious orientation, the structure of the situation, and the possibilities for action that are available to us at the time. |
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http://www.dordt.edu/publications/faculty_handbook/1-2.shtml
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