1. Data Flow Diagram)
Adhere to DFD, which expresses the system's logical functions in graphical form from the perspective of data transmission and processing. The logical flow of data within the system and the logical Exchange Process, is the main expression tool of the structured system analysis method and a graphical amplification used to represent the software model. It is a transformation that depicts
A business flow chart is a chart that describes the business relationship, operation sequence, and management information flow between units and personnel in the system. It helps analysts find out the non-Confluence direction in the business flow, it is a physical model.The
When I started to build a data center charging system, master and I said that we had to analyze the requirements before doing the system. Only by clarifying the requirements can we start the project. So let's look at it first, but I haven't seen it for a long time. Later, master said that the first part of the data room charging system is the database. This makes me even more confused. I don't even know how the database can be created, because I don't know how the information flows. In addition,
Many of the concepts in the UI design do not appear to be very different, but in fact they are very diverse. @akane_lee, a Taiwanese designer who has not issued a paper for a long time, has elaborated the function of flow Chart and UI flow by discriminating the concept of opportunity.
Nearly one months without a dispatch, busy writing planning cases, do Prototyp
deletion function); 4. The information frame and input box can be scaled up and down; 5. Chat Information support batch loading; 6. Press Shift+enter on the input box, enter to send the message; 7. When loading, the navigation below has the popular loading animation effect; Due to the problem of energy and time, it is imperfect and its insufficiency: 1. Temporarily does not support one-click Copy and edit; 2. No private chat and room (group) function; 3. No friends feature added; 4. No respons
1.react Data flow and communication between components
React is a top-down, one-way data stream, passed from the parent node to the child node (via props), and react re-renders all the child nodes if the top-level props changes.
Props: Used for the delivery of state between components, for passing data and configuratio
The mainstream data Flow framework: Flux/reflux/redux
Simple/single State tree
All actions of the user are distributed to several stores by a unified dispatcher
This store holds data that also holds a state of the current page and can only pass information back to the view layer.
actions/User Actions
Components
Container
The Reducer store is responsible for distributing action, responding
index.html the template file, the
receipt. The system must also be equipped with a settlement system that transfers the final menus and consumption prices to the settlement front-end, allowing the cashier to perform operations quickly. This system will eventually need to be presented. How can we design the interface of the handheld terminal? Can a waiter order a single dish with less clicks? How to Design the settlement center interface? Through the above story, do you better understand the relationship from strategy, tactics,
flow chart and which of the diagram, you can see it is from which processing decomposition of sub-processing.Data storage: Data storage represents data that is temporarily stored. Each data store has a name.External entity: An external entity is a person or organization that exists outside the software system, and he points to the origin of the data or the data that the system produces.External solid proce
"Turn": http://blog.csdn.net/xianshengsun/article/details/7439537
"Reference": http://blog.csdn.net/cjr15233661143/article/details/8117555
The drawing of the flow chart
The data flow diagram is also called the flowchart Date flow diagram, DFD, is a convenient user to understand and analyze the system data
the drawing of the flow chart Reference: http://blog.csdn.net/xianshengsun/article/details/7439537first, the basic composition of the flow chartData flow: Consists of a set of fixed components of data that represent the flow of data. It is important to note that data
In the past years of soft examination in the afternoon, there are five big questions, respectively, is the design of data flow chart, database design, UML diagram, algorithm and design patterns, starting from today's blog, small series with you to study the afternoon of soft exam related content, including theoretical knowledge and typical examples of the explanation, Hope to give the necessary small partne
The drawing of the flow chart (turn)
Streaming Diagram (DFD)The data flow diagram, or DFD, is a tool used in the SA method to represent the logical model of the system, which graphically depicts the process of flowing and processing in the system, because it only reflects the logic functions that the system must complete, so it is a functional model.The figure be
basic elements of the streaming diagram:Why use a streaming diagram? because flow graphs represent the flow and processing of class data in the system. The streaming diagram is a tool used in structured analysis, and it is a functional model because it only reflects the logical functions that the system must complete. and users and developers to communicate with the use of data
Project background:The use of Python to achieve an automated network card flow chart drawing, which for our implementation of the automated operation and maintenance platform has a deeper understanding,will also allow us to some of the existing monitoring software implementation of some of the great help.Implementing the Environment:Virtual MachinesVMware Workstation playerServer: centos6.5 system ip:192.16
prototypes, so it doesn't need to be too fine.
Review is very important. In addition to whether the process itself is correct, it is also necessary to consider whether the existing is the best solution, if some of the steps can be simplified.
The evaluation of a system design is good or bad, not to see the normal logic, but to see the exception branch processing. For example, online shopping, the payment has not been successful but the bank card money has been deducted, then need to design a
Article Description: prepare a control flow chart to provide a guidance note when you may be involved in the project process. Of course, this is a few days to watch other projects when the summary, and then according to the company's current department and team configuration design. Perhaps with the further understanding of the future, the idea will change, it should be said that will change.
Pre
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