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Data modeling is a process of developing a model to design and develop a data system that supports an organization s various business processes. A conceptual data model represents a technology-independent specification of structure of data…

Databases · Computer Science 2021-10-01 Sabah Al-Fedaghi

Difficulties arise when conceptual modeling lacks ontological clarity and rigorous definitions, which is especially the case in the relationship construct. Evidence shows that use of relationships is often problematic when it comes to…

Software Engineering · Computer Science 2020-08-04 Sabah Al-Fedaghi

Conceptual modelling using the entity relationship (ER) model has been widely used for database design for a long period of time. However, studies indicate that creating a satisfactory relational model representation from an ER model is…

Databases · Computer Science 2013-07-01 Dhammika Pieris

The Entity-Relationship (ER) model is widely used for creating ER schemas for modeling application domains in the field of Information Systems development. However, when an ER schema is transformed to a Relational Database Schema (RDS),…

Software Engineering · Computer Science 2020-03-02 Dhammika Pieris , M. C Wijegunesekera , N. G. J. Dias

In database development, a conceptual model is created, in the form of an Entity-relationship(ER) model, and transformed to a relational database schema (RDS) to create the database. However, some important information represented on the ER…

Databases · Computer Science 2020-07-03 Dhammika Pieris , M. C Wijegunesekera , N. G. J Dias

This article analyzes the use of Large Language Models (LLMs) as support for the conceptual modeling of relational databases through the automatic generation of Entity-Relationship (ER) diagrams from natural language requirements. The…

Artificial Intelligence · Computer Science 2026-05-13 Arthur F. Siqueira , Carlos D. S. Nogueira , Eduarda Farias , Claudio E. C. Campelo , Júlia Menezes

The entity relationship modelling using the original ER notation has been applauded providing a natural view of data in conceptual modelling of information systems. However, the current ER to relational model transformation algorithm is…

Databases · Computer Science 2013-06-25 Dhammika Pieris

Software engineers typically interpret the domain description in natural language and translate it into a conceptual model. Three approaches are used in this domain modeling: textual languages, diagrammatic languages, and a mixed based of…

Software Engineering · Computer Science 2025-06-04 Sabah Al-Fedaghi

Applying logic in the area of conceptual modeling has been investigated widely, yet there has been limited uptake of logic-based conceptual modeling in industry. According to some researchers, another formalization of such tools as EER or…

Software Engineering · Computer Science 2024-09-25 Sabah Al-Fedaghi

This paper is a sequel to an evolving research project on a diagrammatic methodology called thinging machine (TM). Initially, it was proposed as a base for conceptual modelling (e.g., conceptual UML) in areas such as requirement…

Software Engineering · Computer Science 2025-01-03 Sabah Al-Fedaghi

Entity Recognition (ER) within a text is a fundamental exercise in Natural Language Processing, enabling further depending tasks such as Knowledge Extraction, Text Summarisation, or Keyphrase Extraction. An entity consists of single words…

Computation and Language · Computer Science 2021-06-14 Andreas Waldis , Luca Mazzola

In previous works, we proposed a one-category (entitled thimac) conceptual model called a thinging machine (TM), which integrates staticity (e.g., objects) and dynamism (e.g., events) without losing valuable aspects of diagrammatic…

Software Engineering · Computer Science 2022-03-03 Sabah Al-Fedaghi

Conceptual models as representations of real-world systems are based on diverse techniques in various disciplines but lack a framework that provides multidisciplinary ontological understanding of real-world phenomena. Concurrently, systems…

Software Engineering · Computer Science 2023-06-27 Sabah Al-Fedaghi

The increasing importance of such fields as embedded systems, pervasive computing, and hybrid systems control is increasing attention to the time-dependent aspects of system modeling. In this paper, we focus on modeling conceptual time.…

Software Engineering · Computer Science 2021-04-05 Sabah Al-Fedaghi

Conceptual models rely on structural information to describe relationships among UML classes; among these, the whole-part (WP) relationship plays a fundamental role. This paper explores and analyzes the WP semantics at large with a focus on…

Software Engineering · Computer Science 2022-09-16 Sabah Al-Fedaghi

Since Chen's Entity-Relationship (ER) model, conceptual modeling has been playing a fundamental role in relational data design. In this paper we consider an extended ER (EER) model enriched with cardinality constraints, disjointness…

Databases · Computer Science 2015-03-13 Andrea Cali , Davide Martinenghi

Models are fundamentally crucial to many scientific fields, including software engineering, systems engineering, enterprise modeling, and business modeling. This paper focuses on diagrammatic conceptual modeling, as opposed to mathematical…

Software Engineering · Computer Science 2021-10-28 Sabah Al-Fedaghi , Mahdi Modhaffar

In software system design, one of the purposes of diagrammatic modeling is to explain something (e.g., data tables) to others. Very often, syntax of diagrams is specified while the intended meaning of diagrammatic constructs remains…

Software Engineering · Computer Science 2022-10-05 Sabah Al-Fedaghi

We present a different approach to developing a concept of time for specifying temporality in the conceptual modeling of software and database systems. In the database field, various proposals and products address temporal data. The…

Software Engineering · Computer Science 2021-02-02 Sabah Al-Fedaghi

Enterprise Architecture (EA) continues to gain global recognition as a management tool that would improve the organizations performance. However, based on literature, it was found that the lack of EA knowledge of top management (TM) hinders…

Computers and Society · Computer Science 2016-06-07 Hawa Ahmad , Aishah Ahmad , Nik Hazlina Nik Abdullah Hafaz
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