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definition of sequence diagram:
Interaction is the behavior of a group of messages that interact with a set of objects that implement a goal in a specific context. Sequence diagram is a kind of interaction graph. A sequence diagram
I. Purpose
For a development team, the sequence diagram is very important because it is used to describe the interaction between a group of objects in the system, especially for crawlers.
The project and sequence diagram of business complexity allow us to clarify these complex processes more quickly.
Ii. Basic
. Note: The door in "Top level diagram" uses the message arrow to point to the reference fragment, where it is not necessary to draw it as a block.??Partial decompositionAn object can draw multiple lifelines so that messages inside and between objects are displayed on the same graph.State Constants/ContinuationsThe state constant is the constraint of the lifeline, and the runtime is always true. A rectangle displayed as a semicircle on both sides, suc
understand the component:
Class
Component
Logical Abstraction
Physical Abstraction
You can directly own properties and operations
Generally, you only have operations that can be queried through the interface.
To sum up, components have the following features:
The component is physical.
Component is replaceable
Components are part of the system
The component follows a group of interfaces and provides implementation for a group of interfaces.
Compared wi
This article begins with a discussion of code-level issues. The main feature of Markdown is the design implementation.This article begins with the markdown perimeter code:UML sequence diagrams are obtained from https://github.com/bramp/js-sequence-diagrams copy.When this UML code also uses two JS, function library and drawing.First of all, talk about this JS core
trufun Plato UML2 modeling toolTrufun Plato is a new generation of UML modeling software that provides efficient and fast modeling tools for your software analysis design.Trufun is a case tool manufacturer that synchronizes the release of uml2.x tools after the OMG release of the UML2.2 specification, and is a state-of-the-art, Enterprise-class UML tool based on the new concept of the Chinese. ?
diagram.The following fragment types can be used to change this interpretation:
Fragment type
Name
Description
Consider
Consider
Specifies the list of messages described by this fragment. Other messages can occur on a running system, but this is not a very meaningful description.Type the list in the Messages property.
Ignore
Ignore
A list of messages not described in this fragment. These messages can occur in a running syst
diagram.The following fragment types can be used to change this interpretation:
Fragment type
Name
Description
Consider
Consider
Specifies the list of messages described by this fragment. Other messages can occur on a running system, but this is not a very meaningful description.Type the list in the Messages property.
Ignore
Ignore
A list of messages not described in this fragment. These messages can occur in a running syst
diagram.The following fragment types can be used to change this interpretation:
Fragment type
Name
Description
Consider
Consider
Specifies the list of messages described by this fragment. Other messages can occur on a running system, but this is not a very meaningful description.Type the list in the Messages property.
Ignore
Ignore
A list of messages not described in this fragment. These messages can occur in a running syst
) operator to explain that the interactive box will think that this information is unimportant, so ignore them (directly do not draw it out), or you can use the consider (emphasis) operator to explain that the interactive box that only this information is important, and therefore will show them.
Ref (Reference)
Used to point to an interactive situation as defined in another diagram. We'll make it a box that covers the lifeline of th
creators of up realized and understood the purpose of these graphs, SSD was not directly mentioned in the initial up description.Up stageInitial Stage: SSD is usually not introduced at this stage unless you want to make a rough estimation of the technology involved. This estimation is based on the identification of system operations, for example, feature or cocomo2 (see www.ifpug.org)Refinement phase: Most SSDs are created in the Refinement phase, which helps to identify the details of system e
. For this long square lattice, I have never understood what it actually means. I encountered an open-minded explanation on "Baidu Encyclopedia:You can think of activation as a "{}",From the beginning to the end, it can be understood as a method, an action;
The lifeline is used to describe the time when an object exists. Add the destroy symbol below to delete the object or recycle the object. It is actually a Roman's dragon nest. When it's done, let's leave.
There are four types of messages, but
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Types of products, such as artificial intelligence, artificial intelligence, and artificial intelligence.
Reference (REF)
Conditional differentiation (ALT)
Conditional judgment (OPT)
And column allocation (PAR)
Loop)
Break)
Please wait until there are too many critical errors (critical)
Snapshot has been created (assert)
The specifie
An old programmer of Pancake Hall 2017/10/12 9:40:59
Qingrun
Ask a question, please.
Green Run 2017/10/129:44:47
Said
Let's be polite about this. If you have any questions, just say that, as long as I have the time, I will reply directly.
An old programmer of Pancake Hall 2017/10/12 9:45:31
How can you do that, you're busy.
I know
It's about the UML sequence diagram
actually a class diagram.
② Behavior diagramThere are 5 behavior graphs:(1) usecasedi.pdf)The UML diagram uses a condition chart to organize the behavior of the system, describing a group of conditions, participants, and their relationships. The condition chart is used to describe the static usage view of the system.
(2) sequencedigoal and collaborationdigoal)In
: 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
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
the concurrent activities. Both the branch line and the confluence line are expressed by a bold horizontal or vertical line segment (synchronous line ).
14. Sequence Diagram 1. Definition: sequence diagram, also known as sequence diagr
executed and cannot be interrupted.② execution time is very short• Different points:Action state and state diagram in different states, there can be no entry action and exit action, there can be no internal transfer? Understanding the respective roles of activity diagrams and state diagrams• Function of the state diagram:① clearly describes the sequence of trans
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 looks more clear, so we found a Java cla
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