Technology sharing | system architecture under test and data flow analysis

Technology sharing | Architecture and data flow analysis of the system under test

Deeply understand the architecture and data flow of the system under test during the test , Help understand business logic , Sort out business use cases and promote department collaboration . A deeper understanding of business logic means analyzing what the company does , What are the important business decisions of the company , How the data flow inside the company works , What are the common business scenarios . This can also test the degree of responsibility for the company's business , It can better serve the business department , Create value for the company .

Open source project litemall System architecture

The following is an open source project litemall For example , Analyze the system architecture of this project . litemall This product is a small Mall , With SpringBoot As the back-end ,Vue The administrator combines wechat applet as the front end ,Vue User as mobile terminal .

System architecture

litemall The system architecture is shown in the figure ：

Technology Architecture

litemall The technical architecture is shown in the figure ：

Open source project Mall System architecture

Mall The project is a set of e-commerce system , Including front office mall system and back office management system , be based on SpringBoot + MyBatis Realization , use Docker Containerized deployment . The front office mall system includes the home portal 、 recommendation 、 Commodity search 、 Merchandise display 、 The shopping cart 、 Order process 、 Membership Center 、 Customer service 、 Help center and other modules . Background management system includes commodity management 、 Order management 、 Member management 、 Promotion management 、 operation management 、 Content management 、 Statistical report 、 Financial management 、 Rights management 、 Setting and other modules .

System architecture

Mall The system architecture is shown in the figure ：

Business structure

Mall The business architecture of is shown in the figure ：

Company structure composition

adopt litemall and mall Two open source projects can be seen , In order to better serve the company , Need to understand the company's structure , General business structure and system structure .

Business structure

• Business model ： It is also the most concerned issue at present , How the company maximizes revenue . For example, how to make tiktok and how the fission system is involved. , This requires understanding the business model and technology stack of your business department , And the development mode and future trend of the company .
• Business data ： Understand the role 、 Resources and data . For example, the role in the company's account management center is administrator 、 The user etc. , These roles can be divided into those who output content and those who consume content , Except for the role , We also need to know the types of core resources and data information on the company's platform .
• The business process ： Understand roles in business data , The behavior of roles and the integration relationship between data .

System architecture

The system architecture is to implement the business architecture , Realize the business model and business process . 1. Architecture role and technology stack ： The role of architecture will not change , The technology stack will change with the development of technology . Specific

• gateway ：Apache/Nginx/F5
• application development ：SpringBoot/SpringCloud
• Communication protocol ：Dubbo/HTTP/PB
• Data processing ：Hadoop/Spark/Flink
• data storage ：Redis/MySQL/Oracle/ES
• Document storage ：MongoDB/HBase/Neo4j

2. Deployment architecture ： Integration relationship of architecture roles , Corresponding business process in business architecture .

Modeling language UML

For a quick understanding of the company's structure , You can use a unified modeling language UML To analyze the company structure . Common compiler language tools are ：

• plantuml（ recommend ）
• yed
• draw.io
• processon
• visio ( Not commonly used )

With plantuml Tools, for example , The following diagram model can be designed to analyze the company structure ：

• Use case diagram ： Used to describe the business model 、 Business role
• Sequence diagram ： Used to describe business processes 、 Call relationship
• Deployment diagram ： Used to describe the system architecture and integration relationship
• Activity diagrams ： Used to analyze business logic

Use use case diagrams to sort out business processes

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       @startuml
       
       
left to right direction
       
       
actor User as user
       
       
actor Admin as admin
       
       
package  goods  {
       
       
  usecase " Release commodities "
       
       
  usecase " Browse products "
       
       
  usecase " Purchase goods "
       
       
  usecase " Take off the shelves "
       
       
}
       
       
package  Order  {
       
       
  usecase " Settle orders "
       
       
  usecase " Query order "
       
       
  usecase " refund "
       
       
  usecase " Manage orders "
       
       
}
       
       
admin -up->  Release commodities 
       
       
admin -up->  Take off the shelves 
       
       
admin -up->  Manage orders 
       
       
user -->  Browse products 
       
       
user -->  Purchase goods 
       
       
user -->  Settle orders 
       
       
user -->  Settle orders 
       
       
user -->  Query order 
       
       
user -->  refund 
       
       
@enduml
      
      
      
      

       
       
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Use mind mapping to analyze function points

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       @startmindmap
       
       
scale 380 height
       
       
* <&flag>Debian
       
       
<strong> <&globe>Ubuntu
       
       
</strong>* Linux Mint
       
       
*<strong> Kubuntu
       
       
</strong>* Lubuntu
       
       
*<strong> KDE Neon
       
       
</strong> <&graph>LMDE
       
       
<strong> <&pulse>SolydXK
       
       
</strong> <&people>SteamOS
       
       
<strong> <&star>Raspbian with a very long name
       
       
</strong>* <s>Raspmbc</s> => OSMC
       
       
*** <s>Raspyfi</s> => Volumio
       
       
legend right
       
       
  Short
       
       
  legend
       
       
endlegend
       
       
@endmindmap
      
      
      
      

       
       
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Analyze data flow using sequence diagram

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       scale 300 height
       
       
 user  ->  authentication center :  Login operation 
       
       
 authentication center  ->  cache :  Deposit (key=token+ip,value=token)token
       
       

       
       
 user  <-  authentication center  :  Authentication returned successfully token
       
       
 user  ->  authentication center :  The next visit to the head carries token authentication 
       
       
 authentication center  <-  cache : key=token+ip obtain token
       
       
 Other services  <-  authentication center :  If it exists and the verification is successful, it will jump to other services requested by the user 
       
       
 Other services  ->  user :  Information 
      
      
      
      

       
       
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Use the test case analysis activity diagram

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       @startuml
       
       
scale 580 height
       
       
start
       
       
repeat
       
       
  :Test something;
       
       
    if (Something went wrong?) then (no)
       
       
      #palegreen:OK;
       
       
      break
       
       
    endif
       
       
    ->NOK;
       
       
    :Alert "Error with long text";
       
       
repeat while (Something went wrong with long text?) is (yes) not (no)
       
       
->//merged step//;
       
       
:Alert "Success";
       
       
stop
       
       
@enduml
      
      
      
      

       
       
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The essence of sorting out business use cases is in the testing process , More comprehensive testing of the company's business . For example, complex e-commerce systems or management systems in the insurance industry , The business flow is very complex and involves a variety of internal users , Do not understand the business logic and data , It is difficult to write a well covered business use case . Better cross departmental collaboration with R & D, operation and maintenance refers to when the product has problems , R & D and operation and maintenance will be checked . As a test , To understand the problems and help R & D operation and maintenance to solve them , This can speed up the progress of departmental collaboration . ​​​