trigamous relationship

CRM Application Status CRM was a fierce competition, and CRM was displaced. Gartner said Sibel. To put it bluntly, it's all about bypassing the CRM circle. CRM was originally a customer relationship management. Where did we put our customers? So I have to talk about the application status of CRM in China. The most suitable industry field for CRM is service enterprises, because these industries do not sell services anyway. The more customers they ope

Http://www.uml.org.cn/oobject/201104212.asp When drawing a class chart, clarifying the relationship between classes is the focus. Class relationships include generalization, implementation, and dependency.(Dependency) and Association ). Association is divided into general association and aggregation.(Composition ). The following describes the relationships with instances.Basic Concepts Class digraphs: class diagrams are the most common and important

UMLUse case diagram The use case diagram mainly uses a diagram to represent the main event process of the system. It is mainly used to describe the customer's needs, that is, the user wants the system to complete certain functional actions, the general understanding of the use case is the functional module of the software. The designer creates and explains Use Case Diagrams based on the customer's needs to describe the functional modules of the software and the call relationships between these m

Now let's start to establish a relationship between tables. First, click the relationship command under the tool menu. In the pop-up relationship dialog box, there is also a display table dialog box. Through the display table dialog box, you can add tables or queries that need to establish a relationship to the

You can create relationships between tables in a database chart to display how columns in one table are linked to columns in another table. In a relational database, the use of relationships can avoid unnecessary data. For example, if you want to design a database that can track book information, you need to create a database namedtitlesIt is used to store information about each book, such as the title, publication date, and publishing house. You may also save information about the Publishing Ho

Relationship between UML classes and Classes The relationship between classes plays an important role in understanding object-oriented objects. I was often asked this question during interviews. Here I will introduce it. There is a relationship between the class and the class: (1) Generalization)(2) Association)(3) Dependency)(4) Aggregation) UML diagram a

Abstract: Customer Relationship Management is not only a management concept, but also a new management mechanism designed to improve the relationship between enterprises and customers. It is also a management software and technology. Data mining can predict future trends and behaviors to better support decision-making. The success of CRM lies in the successful data warehouse and data mining. Key words: E-co

Absrtact: Customer relationship Management is not only a kind of management concept, but also a new management mechanism to improve the relationship between enterprises and customers, as well as a kind of management software and technology. Data mining can predict future trends and behaviors, and thus support people's decision-making well. The success of CRM lies in the successful data warehouse and data mi

LaravelEloquent-relationship between models (association) What is Eloquent? Eloquent is an ORM called Object Relational ING. it is translated as "Object relationship ing" (if you only treat it as the Database Relational action Layer array library Abstraction Layer, it is too small to look at it ). The so-called "object" refers to the "Model" mentioned in this article, and the object

ArticleDirectory Composition) Aggregation) Assignment) Implementation) InArchitecture language archimate-Language Structure)The language structure is introduced, and the following archimate framework diagram is listed:Business, application, and technologyThree layers ),Objects, behaviors, and subjectsThree aspects (aspect), inArchitecture language archimate-business layer and architecture language archimate-Application Layer),Architecture language archimate-technology la

The relationships in UML are hard to remember. Here I will summarize and briefly introduce the commonly used relationships in UML. Note: The sample image is drawn using EA 7.5. Five basic relationships of UML (class diagram as an example) Association Link elements and instances, and connect two model elements with no direction to the real line. The two ends of the association can be marked by both sidesRoleAndMultiple Real things do not exist in isolation. There is a certain

One, hibernate many-to-one association mapping: is the "many" at the end of the foreign key, pointing to the one end.For example, multiple students corresponding to a class, a number of users corresponding to a level, etc., are many-to-one relationship.　　1. "Many" end entities add variables and Getter,setter methods that refer to "one" end entities.For example, multiple students corresponding to a class, in the student entity class joined: Private Gra

Relationship Calculation Problem descriptionA two-degree relationship is a relationship between a user and a user who is discovered by a person who is a bridge of concern. Currently, Weibo has achieved a potential user recommendation through a two-degree relationship. The user's once

1. inheritance relationshipInheritance refers to the function that a class (called a subclass or sub-interface) inherits from another class (called a parent class or a parent interface) and adds its own new functions. In Java, the inheritance relationship is identified by the keyword extends, which is generally not controversial during design. In the UML class diagram design, the inheritance is represented by a solid line with a hollow triangle arrow,

station. The identifier itself may also be meaningless. It is used only as an identifier. For example, an ID card number is used to identify a person, but it does not make sense. 1.5 relationship between objectsThe relationship between objects includes the relationship between N and parts, such as the relationship bet

The user table about the users account is described earlier. But in real life, with the complexity of the problem database stored data is not so simple, let us imagine that there is another table, this table and user has links, but also can be mapped and queried, then this table can be associated with an account of any number of e-mail addresses. This association is a typical 1-n (one-to-many) relationship in the database theory, and the user table co

Turn:Coupling strength comparison of five relationships in UML class Diagrams: dependency Association aggregation combination inheritance I. Dependency relationship:(i) DescriptionDashed + arrow Can be described as:Uses aDependency is one of the least coupled relationships among the five types of relationships in a class.Because both of these relationship classes do not add properties when generating cod

After learning Java object-oriented, the teacher will almost mention the relationship between classes. There are five relationships between classes: inheritance, dependency, association, aggregation, and combination. we also need to use these five relationships during the UML drawing process. Next we will take notes for you to learn from some of the lessons you have taken in the previous sections, and hope to get some benefits. * 1. Association refers

The user table is described in the previous section, but in real life with the complexity of the problem the data stored in the database can not be so simple, let us imagine that there is another table, this table and user has a connection, can be mapped and query, then this table can store any number of e-mail addresses associated with an account. This connection is a typical 1-n (one-to-many) relationship in database theory, and a user table has a u

, Trust , longing for everlasting . First, the Triangle Theory of Love What is love in the end? What motivates, forms, and sustains a relationship? This may be one of the hardest questions to answer in the world, but thankfully we never lack the people who are willing to accept the challenge and try to give the answer. American psychologist Sternberg is one of them. He has put forward a famous theory--The triangle theory of love. Love triangle th