software tools available to help software engineers to do the work, either forward engineering or reverse engineering .
Forward Engineering is a traditional process of high-level abstraction, logic and independence design for a system physical structure implementation.
Reverse engineering is the analysis and processing of an existing system to identify its components and their intrinsic relations, so as to build a framework of a system with high-level abstraction. In mos
passed between the object classes that complete a behavior and those object classes. A sequence diagram is an interaction diagram that emphasizes the time order of messages. A sequence diagram describes the chronological order in which messages are sent between objects, and is used to represent the order of behavior in a use case.
sequence
project, as shown in:4.GreenGreen is a plug-in for Eclipse and is an advanced and simple UML Class diagram tool that major students develop and use. It is the live round-tripping editor, so it's easy to generate Java code from a UML class
Because of learning Java to do course assignments need to spend class UML diagram, online Search a lot of methods. This is the way to install the green plugin.
Sometimes want to write our class to generate a UML diagram, is the code
Data Center reconstruction (1) -- UML diagram, Data Center reconstruction -- uml diagram
Finally, we started restructuring. Data Center reconstruction is a very important small project at this stage, because it involves all kinds of knowledge we learned during this time. First, we used the knowledge of softwares, write
: Describes the workflow of the business implementation use case.3.2 State diagram: is a state-to-state control flow that is often used to model dynamic properties.4. Interaction diagram: Describes the interaction between objects, including sequence diagrams and collaboration diagrams.4.1 Sequence diagram: A dynamic partnership between objects that emphasizes the
components and deployment diagrams to test/confirm whether their designs are adequate. Developers can use class diagrams to design and write documents for the system code (or code to be written) class.
Special Class Diagram
UML 2 regards the structure diagram as a classific
There are many types of UML diagrams, only two of the most important and common-class and time series diagrams are discussed here. 1. Class Diagram through the class diagram, we can easily understand the code architecture, clarify the relationship between the modules, includes inheritance (inheritance), implementation
This essay is well written, in PHP to explain the UML (or vice versa) can be said to be an innovation, through this article, I also found a good station: www.phppatterns.com. The translation of the UML terms comes from the UML User Guide (the Unified Modeling Language user Guide) that I am looking at.
UML (Unified mod
the relationship between packages and packages. Because the package contains classes, you can represent the relationship between packages and packages based on the relationships between the classes in those packages.Figure DAssociation (Association)A structured relationship between entities in a UML class diagram relationship indicates that the objects are interconnected. The arrows are optional and are us
.
Constraints
Specifies one or more rules to satisfy for some classes and interfaces, using free-text identifiers enclosed in curly braces in UML.
Package
Packages in UML correspond directly to packages in Java to represent hierarchies and organizational content. Relationship of Class
diamond representation of the decision) can be used to design theobject (Rectangle)In the activity diagram, use dependency to connect it to the corresponding activity in the instance analysis:Three. Sequence diagram 1. Overview: The sequence diagram is the third diagram in the UML
interface and the database. The control class is usually a noun that is transformed by a verb-structure phrase (verbs + nouns), such as adding a commodity to a product, adding a class, registering a user registration class, etc.(3) Boundary class: The boundary class is used to abstract the interaction objects between the external user and the system, including the interface classes, such as dialog boxes, windows, menus, etc.In the early stages of object-oriented analysis and design, it is commo
phrase (verbs + nouns) converted to nouns, such as the increase in goods to have a commodity added class, registration of a user should have a registration class, etc.
(3) Boundary class: Boundary class is used to abstract the interaction object between external user and system, mainly including interface class, such as dialog box, window, menu, etc.
In the initial stage of object-oriented analysis and design, the entity class is usually first identified, the initial class
Objective:If your UML diagram is still a use case diagram, please keep looking, if you do not know the relationship between the business analysis diagram and the activity diagram, please continue to look, if your computer room is refactoring or the cooperation of the omissio
MyEclipse Java code into UML class diagrams1, right click on the project name, select New-------àuml2 Model2. Give class diagram a name3. Class Diagram1) If you want to map the entire project into a class diagram, drag the entire project into the class diagram2) If a single
UML Implementation diagram includes: Deployment diagram, Component diagram
Component diagram describes the main functions of a system from the perspective of software architecture; The deployment diagram describes the structure o
connection. The constraint is represented as {}.4. Typically in UML, the name of the specific instance is underlined, and the class, not the instance, is represented if there is no underscore. Note that the rule has an exception for instances in the interaction diagram, and the instance is represented by a lifeline diagram, with no underscore in its name.Typical
complete. Significant progress has been made in serialization logic modeling due to changes in the symbol set of the sequence diagram in UML 2 ).
Note the text I mentioned above: "The uml2.0 draft Specification has been adopted ." Indeed, the specifications are still in the draft State, but the key is that the draft specifications have been adopted by OMG, which is an organization that uses them until the
:(Component) is the physical, replaceable part of the system that complies with the same set of interfaces and provides its implementation. Each component can realize certain functions for other components to provide the use of interfaces, convenient software reuse. such as object libraries, executables, COM +, Enterprise Java beans.
2. Component type:
Source Code widget: source
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