dynamodb modeling

Previous articles 3D urban Modeling Based on skyline Since Gore proposed the concept of "Digital Earth", it has become a hot topic to express geographical space in digital form. Digital provinces and cities and digital towns have become the development strategies of developed provinces, cities, and regions in the 21st century, it has become one of the commanding heights of Technology, Industry, and economy. 3D Urban Landscape

1. emergence of standard modeling language UML The accepted object-oriented modeling language appeared in the middle of 1970s. From 1989 to 1994, the number has increased from 10 to more than 50. Among the many modeling languages, language creators strive to promote their own products and improve them in practice. However, users of the OO method do not understan

The development of Object-Oriented Analysis and Design (OOA D) methods has seen a climax from the end of 1980s to the end of 1990s. UML is the product of this climax. It not only unifies the Expression Methods of booch, Rumbaugh, and Jacob, but also makes further development on it, and finally unified it into the standard modeling language accepted by the masses. 1. emergence of standard modeling language

UML Modeling Tools Comparison of Visio, Rational Rose, powerdesignThe most widely used by two of various 1. Rational Rose, it's IBM's. Microsoft Office visio®2003 3.Enterprise Architect for 2.Microsoft. There are other tools such as PowerDesigner, etc.1.Rational Rose is a UML-based modeling tool. In the field of object-oriented application development, Rational rose is an important factor affecting its deve

to design the HBase primary key in the HBase authoritative guide. There is no methodology like programming design patterns that can be followed at the model architecture level. When comparing different NoSQL databases, various metrics, such as extensibility, performance, and consistency, are often used in addition to features. Since these indicators are often used in the original sense of NoSQL, they are deeply studied from a theoretical point of view and a practical point of view, and the basi

ArticleDirectory I. Review in the previous chapter Ii. Summary Iii. Contents of this Chapter 4. abstract model diagram in modeling. 5. Summary in this chapter. 6. Series progress. VII. References. 8. next announcement. I. Review in the previous chapter The previous article briefly introduced the related content of the standard modeling language UML used in

Notes | data The recent bookstore has found a good book for data Modeling-data modeling: tools and techniques for analyzing and designing (Workbench:tools and techniques for analytics and design), by Steve Hoberman. After rough, it feels like the book is truly worthy of the praise of translators and foreign experts: "This book is full of techniques and techniques that are useful for improving data models an

September 13, 2016Author: dengshuai_superSource: http://blog.csdn.net/dengshuai_super/article/details/52535925Disclaimer: Please specify the author and source of the reprint. Modeling Method: Abstract Level When used in modeling, HDL languages can be categorized according to an abstract hierarchy:Requirements and concepts can be described at a high level (System level)The concept of requirements can be desc

Whether you follow heavyweight methods, such as Enterprise Unified Process (EUP) or lightweight development processes, such as Extreme Programming (XP), modeling is indispensable in software development. Unfortunately, there are various errors and misunderstandings.This comes from a variety of aspects, from the study of theoretical errors, cultural deposits in the field of information technology for decades, the hype of Software Tool developers, and O

ArticleDirectory Chapter 4 low-level modeling and sequential simulation Disclaimer: This article is an original work and copyright belongs to akuei2 and heijin power Community (Http://www.heijin.org) All together, if you need to reprint, please indicate the source http://www.cnblogs.com/kingst/ Chapter 4 Basic Ideas for low-level modeling and sequential operation imitation 4.1 C languag

Introduction:This period of time will be devoted to writing UML blog, due to the limited ability of individuals, if the blog errors in the place also asked the vast number of Bo friends to criticize. In order to better understand a process or thing, people usually build a model based on certain characteristics (shape, structure, or behavior) of the object being studied. A model is an abstraction of a system from a particular viewpoint, which can be a physical model, such as a building model, a t

First, Oberzhang reviewIn the previous article, we briefly introduced the relevant content of UML of standard modeling language used in modeling, including the usage of use case diagram and class diagram and how to model it. I believe that we have a preliminary understanding of the UML modeling languageAnd to remember the usefulness of UML's different

I recently found a good book on Data Modeling in a bookstore-data modeler's workbench: tools and techniques for analysis and design ), author Steve Hoberman. After a rough review, I feel that this book is indeed worthy of the praise of the translators and foreign experts: "This book is full of techniques and Techniques useful for improving data models and design, it is also very interesting to read-a great combination! Any data modeler should have a b

PrefaceUML Modeling, its importance is self-evident, although I have known its name during the university, but because of various factors are always picked up and put down, failed to continue to study, after several intermittent, has not continued to read a book in depth. Recently more and more feel that the reverse engineering (generated by the code UML) in the daily finishing of the importance and convenience, then picked up books, think should take

http://m.blog.csdn.net/blog/zxhcloth/23451849Original Eclipse EMT Papyrus Modeling and MODISCO reverse engineering2014-4-11 Read 1195 comments 0I seldom write a blog before, given that Eclipse EMT modeling Chinese material is relatively small, many students want to use it, do not have to, write a blog to do a simple guide. Modeling has always been used in the Pow

Comparison of UML modeling tools Visio, Rational Rose, and powerdesignRose is a design tool born directly from the Development of UML. It was designed to support UML modeling. Rose did not support database modeling at the beginning, however, the database modeling function has been added to the current version. Rose is

Summary Workflow Modeling refers to various activities, including the workflow process, the execution sequence and relationship of the process, the agent related to the execution of the process, and the representation of resources used during execution. Multiple technologies are being used for workflow modeling. One of them is to use a temporary Object-oriented Data Model TF-ORM to represent a workflow mode

As the study progresses, my reading continues, and after reading the first and second parts of requirements engineering-software modeling and analysis-in the first phase, I read the third part of the book's needs analysis in the last few days, which is part of the focus of the book, and is also the most helpful in this part of my reading."Requirements Engineering-software modeling and analysis" in the requi

| Rhino Product Modeling Tutorial|--| Vacuum Cleaner Product Modeling|----|06 Overall chamfer operation. avi|----|05 Other details part of the process. avi|----|04 wheel part processing. avi|----|03 handle part of the hand. avi|----|02 top SAG treatment. avi|----|01 basic body modeling. avi|--| Instance File|----| 5th Chapter|------| Shaver rendering model. 3DM|-

Content: What is plotting? Why use modeling tools? Select a Plotting Method Sample Plot Method Use IBM Rational xde modeler/Developer