Information Analysis in UML and ORM

2002 ◽  
pp. 307-323 ◽  
Author(s):  
Terry Halpin
Keyword(s):  
Unified Modeling Language ◽  
Data Modeling ◽  
Object Oriented ◽  
Information Analysis ◽  
Domain Experts ◽  
Unified Modeling ◽  
Data Intensive ◽  
Class Diagrams ◽  
Conceptual Data ◽  
Data Intensive Applications

Since its adoption by the Object Management Group as a language for object-oriented analysis and design, the Unified Modeling Language (UML) has become widely used for designing object-oriented code. However, UML has had only minimal adoption among practitioners for the purposes of information analysis and database design. One main reason for this is that the class diagrams used in UML for data modeling provide only weak, and awkward, support for the kinds of business rules found in data-intensive applications. Moreover, UML’s graphical language does not lend itself readily to verbalization and multiple instantiation for validating data models with domain experts. These defects can be remedied by using a fact-oriented approach for information analysis, from which UML class diagrams may be derived. Object-Role Modeling (ORM) is currently the most popular fact-oriented modeling approach. This chapter examines the relative strengths and weaknesses of UML and ORM for conceptual data modeling, and indicates how models in one notation can be translated into the other.

Information Modeling in UML and ORM

2005 ◽  
pp. 1471-1475 ◽  
Author(s):  
Terry Halpin
Keyword(s):  
Unified Modeling Language ◽  
Object Oriented ◽  
Information Modeling ◽  
Code Design ◽  
Domain Experts ◽  
Weak Support ◽  
Unified Modeling ◽  
Data Intensive ◽  
Management Group ◽  
Data Intensive Applications

The Unified Modeling Language (UML) was adopted by the Object Management Group (OMG) in 1997 as a language for object-oriented (OO) analysis and design. After several minor revisions, a major overhaul resulted in UML version 2.0 (OMG, 2003), and the language is still being refined. Although suitable for object-oriented code design, UML is less suitable for information analysis, since it provides only weak support for the kinds of business rules found in data-intensive applications. Moreover, UML’s graphical language does not lend itself readily to verbalization and multiple instantiation for validating data models with domain experts.

Supplementing UML with Concepts from ORM

2001 ◽  
pp. 168-185 ◽  
Author(s):  
Terry Halpin
Keyword(s):  
Unified Modeling Language ◽  
Use Cases ◽  
Business Rules ◽  
Graphical Language ◽  
Domain Experts ◽  
Unified Modeling ◽  
Class Diagrams ◽  
Conceptual Data ◽  
Object Role Modeling ◽  
Uml Metamodel

The Unified Modeling Language (UML) is useful for designing object-oriented code, but is less suitable for conceptual data analysis. Its process-centric use-cases provide an inadequate basis for specifying data-centric class diagrams, and the UML graphical language suffers from incompleteness, inconsistency and unnecessary complexity. For example, multiplicity constraints can lead to unexpected problems when extended to n-ary associations, the constraint primitives are not optimized for orthogonality or expressibility, and the graphical language does not lend itself readily to verbalization and multiple instantiation for validating models with domain experts. This chapter examines some of these defects, and shows how to compensate for them by augmenting UML with concepts and techniques from the Object Role Modeling (ORM) approach. It highlights the potential of “data use cases” for seeding the data model, using verbalization of facts and rules with positive and negative examples to facilitate validation of business rules. The following approaches are suggested as possible ways to exploit the benefits of fact-orientation: use ORM for the conceptual analysis then map the ORM model to UML; use UML supplemented by informal population diagrams and user-defined constraints; enhance the UML metamodel to better support business rules.

A Comparison of Data Modeling in UML and ORM

2011 ◽  
pp. 613-618 ◽  
Author(s):  
Terry Halpin
Keyword(s):  
Data Modeling ◽  
Object Oriented ◽  
Tool Support ◽  
Information Analysis ◽  
Object Constraint Language ◽  
Graphical Language ◽  
Domain Experts ◽  
Data Intensive ◽  
Identification Schemes ◽  
Oriented Approach

The Unified Modeling Language (UML) was adopted by the Object Management Group (OMG) in 1997 as a language for object-oriented (OO) analysis and design. After several minor revisions, a major overhaul resulted in UML version 2.0 (OMG, 2003), and the language is still being refined. Although suitable for object-oriented code design, UML is less suitable for information analysis, since its graphical language provides only weak support for the kinds of business rules found in data-intensive applications, and its textual Object Constraint Language (OCL) is too technical for most business people to understand. Moreover, UML’s graphical language does not lend itself readily to verbalization and multiple instantiation for validating data models with domain experts. These problems can be remedied by using a fact-oriented approach for information analysis, where communication takes place in simple sentences, each sentence type can easily be populated with multiple instances, and attributes are avoided in the base model. At design time, a fact-oriented model can be used to derive a UML class model or a logical database model. Object Role Modeling (ORM), the main exemplar of the fact-oriented approach, originated in Europe in the mid-1970s (Falkenberg, 1976), and has been extensively revised and extended since, along with commercial tool support (e.g., Halpin, Evans, Hallock, & MacLean, 2003). Recently, a major upgrade to the methodology resulted in ORM 2, a second-generation ORM (Halpin 2005). Neumont ORM Architect (NORMA), an open source tool accessible online at http://sourceforge.net/projects/orm, is under development to provide deep support for ORM 2 (Curland & Halpin, 2007). This article provides a concise comparison of the data modeling features within UML and ORM. The next section provides background on both approaches. The following section summarizes the main structural differences between the two approaches, and outlines some benefits of ORM’s factoriented approach. A simple example is then used to highlight the need to supplement UML’s class modeling notation with additional constraints, especially those underpinning natural identification schemes. Future trends are then briefly outlined, and the conclusion motivates the use of both approaches in concert to provide a richer data modeling experience, and provides references for further reading.

Fuzzy Information Modeling with the UML

2011 ◽  
pp. 153-176 ◽  
Author(s):  
Zongmin Ma
Keyword(s):  
Knowledge Engineering ◽  
Unified Modeling Language ◽  
Data Modeling ◽  
Data Models ◽  
Information Modeling ◽  
Fuzzy Information ◽  
Unified Modeling ◽  
Management Group ◽  
Conceptual Data ◽  
Design Databases

Computer applications in nontraditional areas have put requirements on conceptual data modeling. Some conceptual data models, being the tool of design databases, were proposed. However, information in real-world applications is often vague or ambiguous. Currently, less research has been done in modeling imprecision and uncertainty in conceptual data models. The UML (Unified Modeling Language) is a set of object-oriented modeling notations and is a standard of the Object Data Management Group (ODMG). It can be applied in many areas of software engineering and knowledge engineering. Increasingly, the UML is being applied to data modeling. In this chapter, different levels of fuzziness are introduced into the class of the UML and the corresponding graphical representations are given. The class diagrams of the UML can hereby model fuzzy information.

scholarly journals An Object-Oriented Hypermedia Reference Model Formally Specified in UML

2003 ◽  
pp. 59-78 ◽  
Author(s):  
Nora Koch
Keyword(s):  
Graphical Representation ◽  
Reference Model ◽  
Unified Modeling Language ◽  
Object Oriented ◽  
Mobile Systems ◽  
Modeling Language ◽  
Object Constraint Language ◽  
Unified Modeling ◽  
Constraint Language ◽  
Class Diagrams

Although the Unified Modeling Language (UML) is by now accepted as a standard and is widely used as an object-oriented modeling language, some languages such as Z or VDM are preferred to formally specify reference models. Here, we present a reference model for hypermedia systems in UML. It is an object-oriented and Dexter-based approach that uses UML to provide an intuitive graphical representation of the model. The class diagrams are supplemented with formal constraints in the Object Constraint Language (OCL), adding invariants on elements as well as preconditions and postconditions on operations. The result is an easily extendable reference model for describing specific hypermedia systems, for example, like adaptive or mobile systems. Our contribution shows how formal and semiformal object-oriented techniques can be integrated in the metamodeling process.

APLIKASI PEMESANAN MAKANAN BERBASIS WEB

e-NARODROID ◽  
2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Immah Inayati
Keyword(s):  
Unified Modeling Language ◽  
Object Oriented ◽  
Modeling Language ◽  
Unified Modeling ◽  
Model View Controller ◽  
Model View

Perkembangan dunia teknologi berjalan sangat cepat. Selaras dengan hal itu, kebutuhan manusia hususnya dibidang bisnis juga semakin berkembang. salah satunya adalah R.M. Lesehan Berkah Ilaahi. Rumah makan ini merupakan rumah makan yang memiliki banyak pelanggan. Dengan semakin bertambahnya jumlah pelanggan, maka [penumpukan antrian banyak terjadi. Di samping itu rumah makan ini memiliki potensi untuk dapat terus mengembangkan bisnisnya. Untuk itu dibutuhkan sebuah sistem yang mampu memfasilitasi proses pemesanan melalui online serta mampu membantu pemilik bisnis dalam melakukan promosi dan penawaran, terlebih kepada pelanggan yang daya belinya tinggi. Jurnal ini memaparkan proses pembangunan sistem pemesanan berbasis web dengan menekankan pada tahap analisa, desain, dan implementasi. Analisis kondisi lapangan dilakukan dengan cara observasi lapangan, studi literatur sistem lama, wawancara dan kuesioner pelanggan. Hasil analisa akan digambarkan menggunakan notasi UML (Unified Modeling Language) untuk selanjutnya diimplementasikan dalam sebuah aplikasi e-CRM menggunakan bahasa pemrograman PHP serta basis data PostgreSQL. Metode pengembangan yang digunakan adalah Object oriented dengan memanfaatkan Yii Framework yang merupakan framework PHP berbasis Model View Controller (MVC). Selain itu digunakan pula bootstrap framework dari sisi desain aplikasi untuk memberikan fleksibilitas aplikasi ketika diakses dengan device yang resolusinya lebih kecil seperti telephon genggam. Kata kunci : Observasi, Wawancara, Kuesioner, UML (Unified Modeling Language), Yii Framework, Object oriented, Model View Controller (MVC), bootstrap framework.

UML Based Design Approach for Storage System of Nano-Satellite

2014 ◽  
Vol 599-601 ◽  
pp. 530-533
Author(s):  
Hong Hao Wang ◽  
Hui Quan Wang ◽  
Zhong He Jin
Keyword(s):  
Storage System ◽  
Unified Modeling Language ◽  
Object Oriented ◽  
Modeling Language ◽  
Nand Flash ◽  
Unified Modeling ◽  
Object Oriented Design ◽  
High Level Modeling ◽  
High Level

Due to the complex timing sequence of NAND flash, a unified design process is urgently required to guarantee the reliability of storage system of nano-satellite. Unified Modeling Language (UML) is a widely used high level modeling language for object-oriented design. This paper adopts the UML as the design and modelling tool in the low level storage system design to elaborate the UML application in each phase of design in detail. The result shows taking UML as the modelling tool results in a clear and unambiguity design, which promotes the reliability and quality of software. At last, the feasibility of object-oriented implementation in C is presented.

scholarly journals Aplikasi Sistem Informasi Social Media Advertise Maintenance Menggunakan Pendekatan Object Oriented Methodology

2021 ◽  
Vol 7 (1) ◽  
pp. 19-31
Author(s):  
Sri Rahayu ◽  
Ryanthika Serliyanthi Setyaningrum ◽  
Yuni Kristina Dewi
Keyword(s):  
Social Media ◽  
Information System ◽  
Unified Modeling Language ◽  
Object Oriented ◽  
Negotiation Process ◽  
The Internet ◽  
Great Opportunity ◽  
Face To Face ◽  
Unified Modeling ◽  
The Right

Information systems built in the form of social media and the internet make us able to carry out various activities without having to meet face to face. Social media is currently the main attraction for people to communicate and find information quickly. This is a great opportunity for companies to reach and expand their market. With an information system built in the form of social media and the internet, all obstacles, both distance and high costs, can be suppressed and communication can be carried out effectively. So far, PT. Red Eye Utama conducts marketing through radio advertisements, newspapers / billboards, this is what causes problems, due to limited space and time, as well as high costs to carry out all these processes. The negotiation process between the company and the customer is one of the obstacles that affects the company's service to customers. Therefore, one solution to the problems in this system is to build a Social Media Advertise Maintenance Information System. By using PIECES method analysis for improvements based on performance indicators, indicator information, economic indicators, control indicators, efficiency indicators and service indicators. To design the new system, object-oriented modeling is used, namely UML (Unified Modeling Language) which is the right tool to use in describing the system design that will be made according to User needs.

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