131,059 Hits in 6.4 sec

Entity Types Derived by Symbol-Generating Rules [chapter]

Jordi Cabot, Antoni Olivé, Ernest Teniente
2003 Lecture Notes in Computer Science  
Many languages, like the UML and ORM, allow defining derived relationship types and, at the same time, provide support for reification.  ...  Most conceptual modeling languages, like the UML and ORM, do not allow their formal definition.  ...  This work has been partially supported by the Ministerio de Ciencia y Tecnologia and FEDER under project TIC2002-00744.  ... 
doi:10.1007/978-3-540-39648-2_30 fatcat:qgys3rasprhv3jk6wcvsasojbe

Institutional ontology for conceptual modeling

Owen Eriksson, Paul Johannesson, Maria Bergholtz
2018 Journal of Information Technology  
Further, a common assumption within the field of conceptual modeling is that conceptual models and information systems describe entities in the real world, outside the systems.  ...  Hence, the design of conceptual models could be informed by theories about what entities exist in the world and how they are constituted.  ...  Language rules The assignments of institutional functions are governed by language rules, which enable people to constitute and identify institutional entities.  ... 
doi:10.1057/s41265-018-0053-2 fatcat:dtyudxpdhradndq553nq2u5374

Modelling the Real World: Conceptual Modelling in Spatiotemporal Information System Design

Agnar Renolen
2000 Transactions on GIS  
In this paper, an overview of different modelling principles and a selection of conceptual modelling languages are presented together with examples related to a selection of spatiotemporal problems.  ...  One way to acquire such knowledge is using conceptual modelling methodologies.  ...  Thanks are also owed to the reviewers and to the Department of Surveying and Mapping at the Norwegian University of Science and Technology (NTNU).  ... 
doi:10.1111/1467-9671.00036 fatcat:p5nqa6d4n5ep7lsessjm5n2z44

Semi-automatic Conceptual Data Modeling Using Entity and Relationship Instance Repositories [chapter]

Ornsiri Thonggoom, Il-Yeol Song, Yuan An
2011 Lecture Notes in Computer Science  
HBT incorporates the six domain independent modeling rules, entity categories, and relationship instance repository.  ...  The ER model consists of a collection of entities, relationships between entities and attributes describing entities and relationships.  ...  Figure A.7 A Screenshot of Step 6 in EIPW Step 7: Identify relationships, which are not detected by RIR, by applying a modeling rule.  ... 
doi:10.1007/978-3-642-24606-7_17 fatcat:ru37lvovmfbf7klpzf2ctlddsi

A Framework for the Evolution of Temporal Conceptual Schemas of Information Systems [chapter]

Juan-Ramón López, Antoni Olivé
2000 Lecture Notes in Computer Science  
We define a temporal minimal meta schema, and we show, using some examples, how to extend this minimal meta schema to support any usual conceptual modeling construct.  ...  Ideally, changes in the requirements of information systems should be defined and managed at the conceptual schema level, with an automatic propagation down to the logical database schema(s) and application  ...  Acknowledgments The authors are indebted to Dolors Costal, Cristina Gómez, Camilo Ocampo and Toni Urpí, and to the anonymous referees, for their helpful comments.  ... 
doi:10.1007/3-540-45140-4_25 fatcat:jg4dcaayofcibb6ppmsahvaiba

Conversion of generalization hierarchies and union types from extended entity-relationship model to an XML logical model

Rebeca Schroeder, Ronaldo dos Santos Mello
2008 Proceedings of the 2008 ACM symposium on Applied computing - SAC '08  
This short paper proposes alternative rules for converting generalization/specialization hierarchies and union types, defined in the Extended Entity-Relationship model, to an XML logical model.  ...  Our approach considers all the possible constraints and constructs for generalization and union types, generating abstract schemas for the logical design of XML documents.  ...  In conceptual models such as EER (Extended Entity-Relationship) and UML (Unified Modeling Language), generalization/specialization and union types are considered fundamental and useful modeling constructs  ... 
doi:10.1145/1363686.1363926 dblp:conf/sac/SchroederM08 fatcat:jpoomwelfzgrzh64eouzlmixcu

Taxonomies and Derivation Rules in Conceptual Modeling [chapter]

Antoni Olivé
2001 Lecture Notes in Computer Science  
Our results are general and could be incorporated into many conceptual modeling environments and tools.  ...  This paper analyzes the relationships between taxonomic constraints and derivation rules.  ...  we focus more on defining the relationships than on determining automatically them; we hope this will help in adapting and using the results reported here in several conceptual modeling languages; and  ... 
doi:10.1007/3-540-45341-5_28 fatcat:cj6mztbbyfbfnpf342bdtclhde

Comparison of four Method Engineering languages [chapter]

F. Harmsen, M. Saeki
1996 Method Engineering  
However, the expressive power with respect to Method Engineering of the various conceptual modelling languages differ considerably, turning some modelling languages more suitable for method specification  ...  Brinkkemper claims that every conceptual modelling language is suitable to serve as a meta-modelling language (Brinkkemper, 1990), and therefore suitable to represent method fragments.  ...  A conceptual description of Entity Relationship Diagrams, for instance, only contains the concepts "Entity", "Relationship", "Attribute", and so forth. Properties are "name" and "definition".  ... 
doi:10.1007/978-0-387-35080-6_14 fatcat:bfjilqxe6ng7leehcfece3xizi

Dispositions and causal laws as the ontological foundation of transition rules in simulation models

Giancarlo Guizzardi, Gerd Wagner
2013 2013 Winter Simulations Conference (WSC)  
We also show how the ontological concepts of dispositions and causal laws provide a semantics for the concept of transition rules in conceptual simulation modeling languages corresponding to transition  ...  Process worldview The system is described as a process flow where a set of passive entities flow through the system and are subject to a series of process steps (e.g. seize, delay, release) that model  ...  The Conceptual Process Modeling Language Onto-PMN We briefly discuss how event types and causal laws can be expressed in conceptual models.  ... 
doi:10.1109/wsc.2013.6721520 dblp:conf/wsc/GuizzardiW13 fatcat:t3x5ijifmzb7vfbkijj7cnwpva

An Analysis and Characterisation of Publicly Available Conceptual Models [chapter]

C. Maria Keet, Pablo Rubén Fillottrani
2015 Lecture Notes in Computer Science  
Multiple conceptual data modelling languages exist, with newer version typically having more features to model the universe of discourse more precisely.  ...  Only 64% of the entities are the kind of entities that appear in all three language families. Different profiles are identified that characterise how a typical UML, (E)ER and ORM diagram looks like.  ...  Acknowledgements This work is based upon research supported by the National Research Foundation of South Africa (Project UID: 90041) and the Argentinian Ministry of Science and Technology.  ... 
doi:10.1007/978-3-319-25264-3_45 fatcat:vsx7i2lhj5bq3eyyigrlokupym

Modelling for Data and Business Rules

Maria Cristina ENACHE
2017 Annals of Dunarea de Jos University. Fascicle I : Economics and Applied Informatics  
In this paper you will find and a comparison between the UML and Object Role Modelling (ORM), from the perspective of an entity with its values.  ...  This paper provides an overview of Object Role Modeling (ORM), a fact-oriented method for performing information analysis at the conceptual level.  ...  As a general rule, take the form of the predicate Binary is used to indicate a relationship of roles between a type of object entity and a type of object value.  ... 
doaj:8ce7dc4bccdf4cf19dea0dbb97fca8e8 fatcat:2sbdveuc7ncuhkduaua4os24oi

Automated Question Answering Using Question Templates That Cover the Conceptual Model of the Database [chapter]

Eriks Sneiders
2002 Lecture Notes in Computer Science  
, their attributes, and the relationships in form of natural language questions.  ...  The question-answering system developed by this research matches one-sentence-long user questions to a number of question templates that cover the conceptual model of the database and describe the concepts  ...  The entity slots are bound to the concepts, or entities, in the conceptual model of the database while the templates themselves express the relationships between these concepts in form of natural language  ... 
doi:10.1007/3-540-36271-1_24 fatcat:blibgm7eqnfhpmtjorf2jh2x24

Understanding Semantic Completeness in Rule Frameworks for Modeling Cardinality Constraints

Faiz Currim, Sudha Ram
2018 Enterprise Modelling and Information Systems Architectures - An International Journal  
Modeling organizational rules during conceptual design provides a more accurate picture of the underlying domain and helps enforce data integrity.  ...  Early modeling ensures they are visible to designers and users, thus improving requirements and validation. The rules can then be semiautomatically translated into logical design code.  ...  and rules for conceptual design, e.g., ER Model.  ... 
doi:10.18417/ dblp:journals/emisaij/CurrimR18 fatcat:ferkoucevzasle23onhpmwg2sq

A Transformation-oriented Methodology to Knowledge-based Conceptual Data Warehouse Design

Opim Salim Sitompul, Shahrul Azman Noah
2006 Journal of Computer Science  
In this paper, we proposed a design methodology for conceptual data warehouse design called the transformation-oriented methodology, which transforms an Entity-Relationship (ER) model into a multidimensional  ...  The transformation-oriented methodology translates the ER model into a specification language model and transformed it into an initial problem domain model.  ...  Some examples of this approach are the Multidimensional Entity Relationship (ME/R) [10] , the Structured Entity Relationship Model (SERM) [11] and the Event-Entity-Relationship model (EVER) [12]  ... 
doi:10.3844/jcssp.2006.460.465 fatcat:igz7xvtybjdjtotpi3p4xgavyu

A Framework for Modeling, Building and Maintaining Enterprise Information Systems Software

Alexandre Cláudio de Almeida, Glauber Boff, Juliano Lopes de Oliveira
2009 2009 XXIII Brazilian Symposium on Software Engineering  
The main ideas are to focus on the conceptual modeling of the three aspects of the EIS software -application functions, business rules, and database schema -and to automatically generate code for each  ...  rules, which control and restrict the manipulation of data by functions.  ...  As we have said, the conceptual model used in our framework is based on the Entity-Relationship model.  ... 
doi:10.1109/sbes.2009.24 dblp:conf/sbes/AlmeidaBO09 fatcat:s7euxcuo3vdt3hsamrmoz6zd7y
« Previous Showing results 1 — 15 out of 131,059 results