Data Dictionary

Author(s):  
Peretz Shoval

This chapter explains the roles of a data dictionary (DD) in the development of the information system (IS) and describes its components. The chapter presents a possible implementation of the data dictionary both with the relational and the object oriented (OO) models. A DD is a database or repository of data on the products of the analysis and design phases. It is initially created during the analysis phase, containing details about the components of the object oriented data flow diagram (OO-DFD) and the data elements carried by their various dataflows. But it will be updated and extended throughout the design phase to include details about the products of that phase too. The DD is essential in the development of large-scale systems because it enables its users (analysts and designers) to define, save, and retrieve, in a standard manner, various details of the analysis and design products, details which are not included in those products. A DD can be implemented as a relational database consisting of tables, or as an OO database consisting of object classes. This chapter describes the components of a DD using both models. Obviously, at this stage we only describe the components which are created at the analysis phase.

Author(s):  
Peretz Shoval ◽  
Judith Kabeli

The chapter provides an overview of FOOM–Functional and Object-oriented Methodology–for analysis and design of information systems. FOOM integrates the functional and object-oriented approaches. In the analysis phase, two main models are created: a) a conceptual data model, in the form of an initial class diagram; and b) a functional model, in the form of OO-DFDs (object-oriented data-flow diagram). In the design phase, the above models are used to design the following products: a) a complete class diagram, including Data, Menus, Forms, Reports and Transactions classes, including their attributes, relationships and methods; b) the user interface–a menus tree; c) the input and output form and report; and d) detailed descriptions of the class methods, expressed in pseudo-code or message charts.


Author(s):  
Peretz Shoval

This chapter elaborates on the activities and products of the analysis stage with functional and object oriented methodology (FOOM). The products of this stage include a data/objects model in the form of an initial class diagram, and a functional model in the form of hierarchical object oriented Data flow diagram (OO-DFDs). The two diagram types are synchronized in order to guarantee the correctness and completeness of the two models. The chapter presents various examples of diagrams of both types.


Author(s):  
ENOCH Y. WANG ◽  
BETTY H. C. CHENG

The data flow diagram (DFD), originally introduced for structured design purposes, depicts the functions that a system or a module should provide. The objective of a software system is to implement specific functionalities. The function-oriented decomposition strategy of DFDs in the conventional design process for structured design conflicts with the spirit of object-orientation. So far, there is no object-oriented method that has successfully integrated DFDs into the object-oriented development process. In this paper, we demonstrate how DFDs can be modified in order to be integrated into object-oriented development. The Object Modeling Technique (OMT) is used as the context for object-oriented development. In addition, a set of formalization rules are proposed to provide formal semantics for DFDs in order to integrate the functional model with the other two models of OMT, namely, the object and dynamic models, in terms of the underlying formal semantics.


2019 ◽  
Vol 15 (2) ◽  
pp. 59
Author(s):  
Hariaty Octavia ◽  
Susi Ari Kristina ◽  
Eko Nugroho

Pelayanan resep rawat jalan meliputi kegiatan administratif dan kegiatan pelayanan farmasi klinik. Kebutuhan pengguna dalam pelayanan resep rawat belum sepenuhnya didukung oleh Hospital Pharmacy Information System (HPIS), sehingga perlu dilakukan desain sistem pelayanan resep rawat jalan di RSUD Blambangan menggunakan pendekatan user centered. Penelitian ini bertujuan membuat desain sistem pelayanan resep rawat jalan di RSUD Blambangan melalui pendekatan user centered yaitu berdasarkan kebutuhan pengguna di instalasi farmasi. Penelitian ini merupakan rancangan deskriptif yaitu analisis kebutuhan pengguna menggunakan metode focus group discussion (FGD) dan telaah dokumen. Subyek penelitian ini berjumlah 24 otang yang terdiri dari 9 orang apoteker, 13 orang tenaga teknis kefarmasian (TTK), dan 2 orang tenaga administrasi. Kebutuhan data dalam pelayanan resep rawat jalan meliputi data pasien, data obat, data admisi, data pemeriksaan fisik, data pemeriksaan klinis, data pemeriksaan laboratorium, dan data pelayanan resep yang selanjutnya dikelompokkan dalam kebutuhan data skrining resep, labeling, dan penyerahan obat. Desain sistem pelayanan resep rawat jalan yang dibuat merupakan desain dalam bentuk data flow diagram (DFD). Kesimpulan penelitian ini adalah perlu dibuat desain model lanjutan pelayanan resep rawat jalan yaitu entity relationship diagram (ERD), data dictionary, dan system flowchart.


2020 ◽  
Vol 2 (2) ◽  
pp. 114-123
Author(s):  
Nurjoko - Nurjoko ◽  
Sushanty Saleh ◽  
Sifaul Khoiri

Dalam penyelenggaraan pemerintaahan yang berbasis e-govertment, pengelolaan kependudukan  yang  baik  sangat  dibutuhkan  untuk  dapat  memberikan    pelayanan  kepada pihak-pihak terkait dan untuk menghasilkan kinerja yang lebih baik. Oleh karena itu diperlukan perangkat lunak yang mampu menangani pengelolalan layanan pendudukan secara baik. Adapun metode dan tools yang digunakan dalam penelitian  ini adalah Metode Structured Systems Analysis and Design( SSAD), flowchat dokumen, Data Flow Diagram (DFD), ERD dan flowchart program. Sistem ini berjalan pada internet sehingga dapat diakses oleh warga desa Bangun Rejo dimana dan kapan saja. Sistem ini dibangun dengan menggunakan bahasa pemrograman php dan database MySQL.Sehingga dengan adanya sistem informasi kependudukan berbasis E government ini memudahkan warga dan petugas dalam mengolah data kependudukan. Kata Kunci : Layanan, kependudukan, E-Government, Desa


Author(s):  
Suroto Adi ◽  
Desi Maya Kristin

Entity relationship diagram (ERD) and data flow diagram (DFD) modeling are necessary parts in analysis and design of structured information systems in business. Definition of entities in the ERD, the process, and datastore in the DFD have well described in a lot of literatures. However, practically it is not easy to explain how to design ERD and DFD models so that the students well understand the modeling steps, especially in business applications. This study discussed step-by-step systematic approach to ERD and DFD modeling using "business event-driven" approach that is represented by the REA model, through structuring REA-ERD and REA-DFD. From the results we concluded that the logical design of ERD should be done before designing DFD, so that there would be perfect "balancing" between the entities in the ERD and data stores in the DFD. Consequently, the implementation of these steps needed to be tested both qualitatively and quantitatively in advanced researches


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