...Database Modeling Tool INF322 Instructor June 27, 2011 Database Modeling Tool The company has grown exponentially over the past 6 months and needs to develop a new database to house its financial, inventory, and client data. It has been decided to build this new database in house rather than purchase a system from a third party vendor. As part of the development of this database it is in the company’s best interest to utilize a database modeling tool to help the design effort. Utilizing a database modeling tool will offer the following benefits: 1. Simple graphic representation of the data structure. 2. Visual work flow of how data will be entered, modified, and reported. 3. Bulk editor capabilities. 4. Database design generator. 5. Database reverse engineering. 6. Logical and physical data model reporting. The tool that looks to be the best fit for the company is CA Erwin Data Modeler r8. CA Erwin Data Modeler r8 was developed by Logic Works Inc. Logic Works Inc. has been in business as a database modeling solution since 1988 (Carreon, 1996) and continues to be one of the top data modeling providers. CA Erwin Data Modeler r8 is the most balanced data modeler tool when comparing functionality, simplicity, and cost when to its competitors. CA Erwin has very user friendly graphical representation of both the logical and physical data models. No other competing modeler has both of these capabilities within the same function. It has all of...
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...Vilnius Gediminas Technical University Jelena Mamčenko Lecture Notes on INFORMATION RESOURCES Part I Introduction to Dta Modeling and MSAccess Code FMITB02004 Course title Information Resourses Course volume 3,0 cr. (4,50 ECTS cr.) Teaching methods (Full-time, daytime studies): Lectures - 16 h per semestre Laboratory works - 32 h per semestre Individual work - 72 h per semester Course aim Understandig of models and system of information resourses. Jelena Mamčenko Introduction to Data Modeling and MSAccess CONTENT 1 Introduction to Data Modeling ............................................................................................................... 5 1.1 Data Modeling Overview ............................................................................................................... 5 1.1.1 Methodology .......................................................................................................................... 6 1.1.2 Data Modeling In the Context of Database Design................................................................ 6 1.1.3 Components of A Data Model................................................................................................ 6 1.1.4 Why is Data Modeling Important? ......................................................................................... 6 1.1.5 Summary ................................................................................................................................ 7 1.2 The...
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...USE OF DATA ANALYSIS IN MODELING Use of Data Analysis in Modeling Michael Matthews CIS 331: System Modeling Theory Strayer University Mark O’Connell, PHD March 5, 2013 The term “model” refers to a process of creating a representation of reality and working with this simplified representation in order to understand or control some part of the world (Barker, Powell 2004 pg. 11). A model can be used in varies ways such as business plains, forming a database, or building a structure. It can also be formed mentally, visually, and mathematically especially by data analysis. Data analysis is the process of raw data measured in order to determine the means based on that data. Although, data is relevant in producing a model, it is only used to provide general perspective of information, not to form a solution. By determining this objective, I will demonstrate the use of data analysis to form a model and the advantages and disadvantages that come with it. The techniques of a model are used constantly to understand the world and to predict the outcomes and actions. For example, a mental model come into play when one manager has to decide is hiring an older worker beneficial to the company. Another manager suggests that hiring older workers is a good idea because they bring valuable experience to the job. This mental model is the basis of decision making, one action forming an outcome (Barker, Powell 2004). The decision that is made, the advantage and disadvantage of hiring...
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...1. Introduction 2 2. Certification 2 3. Getting Started 2 4. ‘Bang for the Buck’ Data Models 2 5. Design Patterns 2 6. Master Data Management (MDM) 2 7. Build your Own 2 8. Generic Data Models 2 9. From the Cradle to the Grave 2 10. Commercial Web Sites 2 11. Vertical Applications 2 Appendix A. Business Rules 2 Appendix B. Glossary of Terms 2 1. Introduction 1.1 Our Approach This book adopts a unique approach which is based on using existing Data Models as the basis for designing new ones to meet specific requirements. We have almost 800 Data Models on our Database Answers Website and they define our starting point – * http://www.databaseanswers.org/data_models/index.htm We have used the Dezign Data Modelling Tool to create most of the Data Models in this book. I chose it because it is powerful, flexible and affordable. Members of the Database Answers Community and people who buy this book can purchase Dezign and benefit from a discount of 25%. In order to gain the benefit of this discount, all you have to do is to send an email to dba_requests@barryw.org with your Database Answers Community ID. We will then send you the order instructions. 1.2 Tutorials We have a number of useful Tutorials on our Website. Here are two of them :- * Data Modelling with two young people visiting Windsor Castle * http://www.databaseanswers.org/tutorial4_data_modelling_dimple_and_toby_visit_windsor_castle/index.htm * Beginner’s...
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...System Modeling Margaret Francies Strayer University Term Paper System Modeling Theory– CIS 331 Richard Guirguis Due on 12/8/2010 System Modeling Systems modeling or systems modelling is the approach to the study of the use of models to imagine and construct systems in business and IT development. In business and IT development the term "systems modeling" has multiple meaning. System Modeling can refer to analysis and design efforts, simulation and or system dynamics, and a study of the many uses of these models. There are different approaches to modeling: Agent based data and mathematical modeling. Quality management adopts a number of management principles that can be used by top management to guide their organizations towards improved performance. Principles such as: customer focus, leadership, people’s involvement, the process, system approach to management, continual improvement, facts, and a mutual benefit. . Decision making is a reasoning or emotional process which can be rational or irrational. The cognitive perspective is that the decision making process must be regarded as a continuous process integrated in the interaction with the environment. From a normative perspective, the analysis of individual decisions is concerned with the logic of decision making and rationality and the invariant choice it leads to it can be based on explicit assumptions or tacit assumptions. In decision making, objectives must be established and placed in the order of...
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...Best Practices in Data Modeling Dan English Objectives • • • • • Understand how QlikView is Different from SQL Understand How QlikView works with(out) a Data Warehouse Not Throw Baby out with the Bathwater Adopt Applicable Data Modeling Best Practices Know Where to Go for More Information QlikView is not SQL (SQL Schemas) SQL take a large schema and queries a subset of tables. Each query creates a temporary “Schema” of only a few tables. Query result sets are independent of each other. Query 1 Query 2 QlikView is not SQL (QV Schemas) QlikView builds a smaller and more reporting friendly schema from the transactional database. This schema is persistent and reacts as a whole to user “queries”. A selection affects the entire schema. QlikView is not SQL (Aggregation and Granularity) Store Table Store A B SqrFootage 1000 800 Sales Table Store A A A B B Prod 1 2 3 1 2 Price $1.25 $0.75 $2.50 $1.25 $0.75 Date 1/1/2006 1/2/2006 1/3/2006 1/4/2006 1/5/2006 Select * From Store, Sales Where Store.Store = Sales.Store will return: SqrFootage 1000 1000 1000 800 800 Store A A A B B Prod 1 2 3 1 2 Price $1.25 $0.75 $2.50 $1.25 $0.75 Date 1/1/2006 1/1/2006 1/1/2006 1/1/2006 1/1/2006 Sum(SqrFootage) will return: 4600 If you want the accurate Sum of SqrFootage in SQL you can not join on the Sales table in the same Query! QlikView is not SQL (Benefits) • QlikView allows you to see the results of a selection across the...
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...! University of Illinois at Springfield Journal Article Review By Sadanand Patil. Instructor: Hamed Saremi. ABSTRACT: In this paper we are going to review three journal articles based on Business Process Modeling and Simulation. These articles explain the importance of business process modeling and simulation in business processes. Authors discuss how modeling and simulation is done. We start with some information about the business processes explained by the authors then we will discuss business process modeling and methods of modeling. We will also go through how simulation modeling helps to evaluate alternate business process strategies. We will also discuss benefits of simulation of business process modeling. The purpose of this paper is to give readers idea about the journal articles, whether they are worth reading and importance of these articles and how these articles will help to understand Business Process Modeling and Simulation. INTRODUCTION: Ray J. Paul, Vlatka Hlupic and George M. Giaglis explained in their article that due to increasing competition, organizations need to make major changes in their each step of business process. BPR (Business Process Re-engineering) helps an organization to enhance the business process and also creates new ways in order to gain a competitive edge in a real market. BPR helps to redesign the business system for the enhancement of an organization. Many organizations faced a failure because of many factors...
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...Modeling, Visualization, and Assessment Modeling, visualization, and assessment are three tools that when incorporated properly, can make any classroom successful. Visualization is now being used in several careers. Disciplines such as mechanical design and architecture have traditional utilized drawings such as plans, sections, and elevations as the primary medium for design communication as well as documentation (Guidera, 2010). Highway design engineers now use visualization as an opportunity to improve the entire planning, design, and construction process for all types of projects, big and small, and from start to finish (Taylor, & Moler, 2010). The following sections will discuss incorporating modeling activities, creative ways to use visualization tools, technologies for assessing student progress, and difficulties expected with the incorporation of modeling, visualization, and assessment. Incorporating Modeling Activities Modeling activities can be tailored to fit any classroom situation. There are several things to keep in mind when using or creating modeling activities for instruction. One thing to keep in mind is that the activity is should be interactive. The modeling should also provide opportunities for them to experiment with the model or modify. The second thing to keep in mind is that the purpose of using a model is to help bridge the gap between observations and the real world. The final thing to keep in mind is that modeling can introduce students...
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...GEORGE WARREN BROWN SOCIAL OF SOCIAL WORK WASHINGTON UNIVERSITY Ph.D. PROGRAM IN SOCIAL WORK FALL 2010 ADVANCED MULTIVARIATE STATISTICS S90-6901.01 CREDIT HOURS: 3 GRADE: L/G ROOM: Brown 209 TIME: Tues., 1:00 – 3:00 LAB: Tues., 3:15-5:15 pm In Goldfarb 330 TA: Jin Huang TA’S E-MAIL: jhuang22@wustl.edu INSTRUCTOR: David Gillespie OFFICE: Brown 106 OFFICE HOURS: Mon., 9:00 – 11:00 a.m. & by appointment PHONE/VOICE MAIL: 935-6674 E-MAIL: davidg@gwbmail.wustl.edu OR davidfg@fidnet.com TA’S OFFICE: B-05; PHONE: 935-8786 TA’S OFFICE HOURS: Thurs., 1:00 – 3:00 p.m. & by appointment I. COURSE DOMAIN AND BOUNDARIES This course introduces structural equation modeling (SEM). SEM is a flexible and extensive method for testing theory. Structural equation models are best developed on the basis of substantive theory. The hypothesized theoretical relationships imply particular patterns of covariance. Statistical estimates of these hypothesized covariances indicate within a margin of error how well the models fit with data. The development and testing of these models advances theory by including latent variables, by estimating measurement error, by accepting multiple indicators, by accomodating reciprocal causation, and by estimating model parameters simultaneously. Structural equation models subsume factor analysis, regression, and path analysis. The integration of these traditional types of analysis is an important advancement because it makes possible empirical specification of the...
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...Unified Modeling Language (UML) UML stand for Unified Modeling Language and will forever change the world of modeling. UML was introduced more than 10 years ago in 1997 with the combined of three modeling advocates techniques. One of the first to adopt the system was The Object Management Group (OMG), the immediately set the stage for a new world of modeling with UML leading the way. The UML version 1.x was composed of 9 distinct but was break down into three types; they are structural, behavioral, and interaction. Of course no system was prefect there were issues as well that lead to more researches. First of UML is very complex and not users friendly and doubt it’ll get any less according to the article. They required experience user and have to get users to learn it language. (Erickson, J. (2008)) The impact on modeling that UML was seen years later. Now most of the businesses around the world use it in their daily working and communication. The systems on which these businesses run are based on languages, which make the design of these systems easier than it would have been otherwise. System design and engineering complexities are greatly reduced by use of diagrams that convey much more than reams of paper would consume by way of text. Also, these diagrams used in modeling help to design the system faster and quicker. Unified Modeling Language (UML) is now one such Modeling language, used to make designing of systems faster and quicker. The UML is thus a visual...
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...Alberto Sikaffy CMGT 263 Professor Paul 11/17/14 Building Information Modeling Building Information Modeling (BIM) is an intelligent model-based process that provides insight to help you plan, design, construct, and manage buildings and infrastructure. BIMs are files that can be exchanged or networked to support decision-making about a place. Businesses and Individuals use BIM software to construct and maintain physical infrastructures from water, wastewater, electricity, bridges, ports, apartment buildings, schools, warehouses and much more. The term “Building Information Model” was first documented in a paper written by Van Nederveen and Tolman (1992), from TU Delft in the Netherlands, although the concept of BIM has existed since the 1970s. The US National Information Model Standard Project Committee has the following definition for BIM: “Building Information Modeling (BIM) is a digital representation of physical and functional characteristics of a facility. A BIM is a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception to demolition” Before BIM, traditional building designs were largely reliant upon two-dimensional drawing. BIM has facilitated this process augmenting the three primary spatial dimensions width, height, and depth. With BIM we now have time as a fourth dimension and cost as a fifth dimension. BIM design tools allow extraction of...
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...Logical Modeling in Systems Analysis Table of Contents Topic Page Chapter One Abstract . . . . . . . . . . . . . . . . . . . 3 Chapter Two Introduction . . . . . . . . . . . . . . . . . . 4 Information Systems . . . . . . . . . . . . . . . 5 IS Analysis Phase . . . . . . . . . . . . . . . . 5 Modeling Definition and Concepts. . . . . . . . . 5 Traditional Approach Logical Models . . . . . . . . 7 Object Oriented Approach Logical Models . . . . . . 9 Chapter Three Current Topics in Data Modeling . . . . . . . . . . . 12 Bibliography . . . . . . . . . . . . . . . . . . 14 CHAPTER ONE Abstract Today’s organizations are utilizing their core competencies while exploiting the core competencies of subcontractors to produce highly differentiated and high quality products at a lower cost. Business process reengineering has played a key role in remaining competitive, enabled through information technology. Existence of the automated information system, developed through Systems Analysis and Design, has become a requirement for survival of today’s companies. Process requirements...
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...OBJECT-RELATIONAL DATABASE MODELING USING UML Table of Contents Introduction……………………………………………………………………………………..4 Overview of ER Modeling and UML…………………………………………………………...4 UML Meta-model……………………………………………………………………………… 6 UML Components………………………………………………………………………………7 UML Data Profile……………………………………………………………………………….9 UML Diagrams……………………………………………………………………………….....10 UML Diagram Classification – Static, Dynamic, and Implementation…....................................12 4+1 View of UML Diagrams……………………………………………………………………13 Object-oriented Class Model and Relational Database Model..............................................…...14 Use of UML to develop Ontologies…………………………………………………………..…17 References……………………………………………………………………………………….19 Abstract The Unified Modeling Language (UML) is being used as the de-facto standard in the software industry. With the adoption of UML 2.0, the new enhancements allow this version to describe many of the elements found in today's software technology as well as Model Driven Architecture and Service-Oriented Architecture. Many existing software applications involve complex application layer implemented in object-oriented programming languages and at the same time use relational database systems as the back-end data store. Modeling the whole system in a consistent manner will help developers and end users better understand the application. The Unified Modeling Language (UML) is a standard language for modeling software and database systems...
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...UML是Unified Modeling Language的簡稱，中譯為「統一塑模語言」。其中： Unified：UML是一種標準語言，廣泛運用於全世界。 Modeling：UML用途在於塑模(Modeling)，也就是畫軟體藍圖。 Language：UML是一種塑模語言，而非程式語言或標示語言。 也就是說，UML是軟體系統發展人員用以建造模型，而這些模型使得工作團隊能夠：將系統具象化(Visualization)、將系統結構及行為規格化(Specification)、建構(Construction)系統、以及記錄(Documentation)發展系統過程中之各項決策。 什麼是塑模？ 作曲家會將其腦袋中的旋律譜成樂曲，建築師會將其設計之建築物畫成藍圖，行銷廣告人員會將其創意製作成簡報；這些樂曲、藍圖及簡報就是模型(Model)，而建構這些模型的過程就稱為塑模(Modeling)。 軟體開發如同音樂譜曲及建築設計，其過程中也必須將需求、分析、設計、實作、佈署等各項工作流程之構想與結果予以呈現，這就是軟體系統之塑模。 為什麼要塑模？ 絕大部份的音樂演奏都需要樂譜(除了少數即性式表演外)! 絕大部份的建築施工都需要藍圖(除非要蓋的是一間狗屋)! 同樣的，所有軟體系統的建構最好都有適當的分析設計藍圖，因為軟體開發的過程絕對不是任意的、隨性的、且戰且走的、天馬行空的。 UML在軟體塑模中所扮演的角色是什麼？ 1.軟體發展之方法論中包含了程序(Process)及表示法(Notation)兩個部份，其中： 程序指的是系統開發的流程，例：瀑布模式、漸增模式、擴展模式、雛型模式、螺旋模式等。 2.表示法指的是建構軟體模型中所會用到之符號及規則。 3.UML所涵蓋的內容是表式法而非程序，UML是與程序無關的(Process Independent)，也就是說，無論以任何程序來開發軟體系統，都可以使用UML來建構軟體模型。 UML與物件導向方法之關係 1.UML之訂定與物件導向方法的確有非常密切之關係。 2.UML中的各種符號及規則與物件導向語言(Java，C++)之結構有完整對應。 但是，UML絕對不僅限用在物件導向軟體開發，UML中有些概念與圖形甚至可說是與物件導向無關 例：Use Case Diagram及Statechart Diagram 因此，軟體開發時無論是否採用物件導向方法，UML都是適用的。 UML的重要性 1.UML是OMG公佈的官方標準。 2.UML已為全世界軟體業者所廣泛採用，各大軟體公司(Microsoft、IBM、Oracle等) 3.在其產品中均支援UML。 4.UML的應用領域越來越廣(資料庫設計、韌體設計、資訊管理等)。 UML的現行版本 UML現行版本為1.5版(http://www.omg.org/technology/documents/formal/uml.htm)，但2.0版將近完成，應會在短期內正式公佈(http://www.omg.org/uml)。 UML的內容到底是什麼？ UML對於軟體開發相關人員而言，其實就只是一組符號及規則，其中包括： 1.Basic Building Blocks(都有其相對的符號) (1) Things Structura˙Things：Class、Interface、Collaboration、Use...
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...Applied Modeling with Military Operations (non-war) Modeling or model is a simplified representation of a situation or problem and modeling is the process of building, refining, and analyzing that representation for greater insight and improved decision making. Modeling is also a mathematical or logical depiction of a system’s behavior. Simulation, is otherwise the device that implements the model. In many military operations, simulation is distinguished among three classes (rough). Live simulations, this involves real people using real equipment in the physical world (real world), like large field exercises. Virtual simulation, involves real people using simulators, flight simulators and/or actual information systems, this often provides realistic acts. Lastly, constructive simulations, this involves simulated people and systems operating in the simulated world, as in things like simulated combat, here users set the initial conditions and run the simulation to see what happens. Simulations are developed from the thoughts of human designers. All simulations are tested to assure accuracy and effectiveness, to illuminate specific issues or problems. The process that covers these mistakes and issues is associated with verification, validation and accreditation. These three sources are applied to a simulation development cycle that operated by the real world system, and is replicated and identified and the conceptual model of it is then identified. This conceptual model is...
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