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Developing High Quality Data Models

2011-02-07 Computers
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Release : 2011-02-07
Genre : Computers
Kind : eBook
Book Rating : 071/5 ( reviews)

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Book Synopsis Developing High Quality Data Models by : Matthew West

Download or read book Developing High Quality Data Models written by Matthew West. This book was released on 2011-02-07. Available in PDF, EPUB and Kindle. Book excerpt: Developing High Quality Data Models provides an introduction to the key principles of data modeling. It explains the purpose of data models in both developing an Enterprise Architecture and in supporting Information Quality; common problems in data model development; and how to develop high quality data models, in particular conceptual, integration, and enterprise data models. The book is organized into four parts. Part 1 provides an overview of data models and data modeling including the basics of data model notation; types and uses of data models; and the place of data models in enterprise architecture. Part 2 introduces some general principles for data models, including principles for developing ontologically based data models; and applications of the principles for attributes, relationship types, and entity types. Part 3 presents an ontological framework for developing consistent data models. Part 4 provides the full data model that has been in development throughout the book. The model was created using Jotne EPM Technologys EDMVisualExpress data modeling tool. This book was designed for all types of modelers: from those who understand data modeling basics but are just starting to learn about data modeling in practice, through to experienced data modelers seeking to expand their knowledge and skills and solve some of the more challenging problems of data modeling. Uses a number of common data model patterns to explain how to develop data models over a wide scope in a way that is consistent and of high quality Offers generic data model templates that are reusable in many applications and are fundamental for developing more specific templates Develops ideas for creating consistent approaches to high quality data models

R for Data Science

2016-12-12 Computers
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Release : 2016-12-12
Genre : Computers
Kind : eBook
Book Rating : 364/5 ( reviews)

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Book Synopsis R for Data Science by : Hadley Wickham

Download or read book R for Data Science written by Hadley Wickham. This book was released on 2016-12-12. Available in PDF, EPUB and Kindle. Book excerpt: Learn how to use R to turn raw data into insight, knowledge, and understanding. This book introduces you to R, RStudio, and the tidyverse, a collection of R packages designed to work together to make data science fast, fluent, and fun. Suitable for readers with no previous programming experience, R for Data Science is designed to get you doing data science as quickly as possible. Authors Hadley Wickham and Garrett Grolemund guide you through the steps of importing, wrangling, exploring, and modeling your data and communicating the results. You'll get a complete, big-picture understanding of the data science cycle, along with basic tools you need to manage the details. Each section of the book is paired with exercises to help you practice what you've learned along the way. You'll learn how to: Wrangle—transform your datasets into a form convenient for analysis Program—learn powerful R tools for solving data problems with greater clarity and ease Explore—examine your data, generate hypotheses, and quickly test them Model—provide a low-dimensional summary that captures true "signals" in your dataset Communicate—learn R Markdown for integrating prose, code, and results

Model-Based Development and Evolution of Information Systems

2012-05-17 Computers
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Release : 2012-05-17
Genre : Computers
Kind : eBook
Book Rating : 369/5 ( reviews)

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Book Synopsis Model-Based Development and Evolution of Information Systems by : John Krogstie

Download or read book Model-Based Development and Evolution of Information Systems written by John Krogstie. This book was released on 2012-05-17. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces and describes in detail the SEQUAL framework for understanding the quality of models and modeling languages, including the numerous specializations of the generic framework, and the various ways in which this can be used for different applications. Topics and features: contains case studies, chapter summaries, review questions, problems and exercises throughout the text, in addition to Appendices on terminology and abbreviations; presents a thorough introduction to the most important concepts in conceptual modeling, including the underlying philosophical outlook on the quality of models; describes the basic tasks and model types in information systems development and evolution, and the main methodologies for mixing different phases of information system development; provides an overview of the general mechanisms and perspectives used in conceptual modeling; predicts future trends in technological development, and discusses how the role of modeling can be envisaged in this landscape.

The Common Information Model CIM

2012-02-01 Technology & Engineering
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Release : 2012-02-01
Genre : Technology & Engineering
Kind : eBook
Book Rating : 15X/5 ( reviews)

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Book Synopsis The Common Information Model CIM by : Mathias Uslar

Download or read book The Common Information Model CIM written by Mathias Uslar. This book was released on 2012-02-01. Available in PDF, EPUB and Kindle. Book excerpt: Within the Smart Grid, the combination of automation equipment, communication technology and IT is crucial. Interoperability of devices and systems can be seen as the key enabler of smart grids. Therefore, international initiatives have been started in order to identify interoperability core standards for Smart Grids. IEC 62357, the so called Seamless Integration Architecture, is one of these very core standards, which has been identified by recent Smart Grid initiatives and roadmaps to be essential for building and managing intelligent power systems. The Seamless Integration Architecture provides an overview of the interoperability and relations between further standards from IEC TC 57 like the IEC 61970/61968: Common Information Model - CIM. CIM has proven to be a mature standard for interoperability and engineering; consequently, it is a cornerstone of the IEC Smart Grid Standardization Roadmap. This book provides an overview on how the CIM developed, in which international projects and roadmaps is has already been covered and describes the basic use cases for CIM. This book has been written for both Power Engineers trying to get to know the EMS and business IT part of Smart Grid and for Computer Scientist finding out where ICT technology is applied in EMS and DMS Systems. The book is divided into two parts dealing with the theoretical foundations and a practical part describing tools and use cases for CIM.

Fundamental Concepts of Information Modeling

1981 Computers
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Release : 1981
Genre : Computers
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Fundamental Concepts of Information Modeling by : Matt Flavin

Download or read book Fundamental Concepts of Information Modeling written by Matt Flavin. This book was released on 1981. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to information modeling, a form of system analysis that identifies the objects, relationships, and operations of real-world systems. The three sections of the book address the basic problems confronting designers, the analytical machinery, and the combination of these elements to formulate definitions for principal semantic concerns. Sophisticated machinery is developed to allow the model designer to conduct policy analysis and produce system models quickly and effectively.

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