Chapter 975 Foresight
This statement makes no sense, but Zhou Zhi feels that there is no need to talk to Guan Dabin about any big reasons. Uncle Guan, you don’t know how much money you have made for yourself. wealth!
But it reminded Zhou Zhi of another thing: "Uncle Guan, are you familiar with Heheng Supermarket's POS system now?"
"Wait a minute..." Guan Dabin stood up and walked into his room, and then He took out a thick pile of information: "I don't know if these are useful to you. I got the information from the Ministry of Information."
Zhou Zhi opened the information and looked at it: "Even He Heng's system Are they all still in stand-alone mode? ”
The supermarket settlement system is a system that can be simplified or complex, but it is a very forward-looking project. Judging from the current status, Heheng's supermarket system is actually a code reader and a cashier box, plus an information record terminal.
Only after the front-end system is shut down every night, will these records be transmitted to the back-end server, where a series of financial settlements will be performed, the inventory of the entire supermarket will be re-treasured, and the transaction volume will be settled and Financial settlement.
Compared with Jiachuan Sugar and Wine Company’s monthly inventory, such a system can achieve daily settlement, which is already extremely advanced at present.
But in Zhou Zhi's eyes, this system is still lagging behind because it cannot achieve real-time settlement.
The entire system, the front end is busy during the day, and the back end is busy at night. This is actually a huge waste of computing resources.
At the same time, due to the impact of the length of batches at night, it is not far from the time when the supermarket opens after the settlement is completed. If some problems are finally discovered from the financial report analysis, such as out of stock and replenishment, the response time left for the logistics center will be extremely long. Short.
In fact, many things in this system can only achieve T+1 or even T+2, which means that the information processing time will lag one to two days. For example, replenishment can only be set through algorithms. To determine the critical value is to judge based on the average value that the product may be out of stock tomorrow. If there is still one or two days of inventory, the manager will be reminded that replenishment is needed.
This is enough for supermarkets, but if it can be done better...
If it can be done better, then use the Internet to allow the front-end to scan every time The shipping information of the code is sent directly to the backend, allowing the front and backend to perform balanced calculations and control the supermarket's inventory in real time. If the incoming goods scanning is also performed at the same time, the entire supermarket's backend can record the inventory of incoming and outgoing goods in real time.
When the supermarket closes every day, system inventory, cashier, accounting, and many other tasks have been completed in real time. Managers can promptly adjust marketing strategies, adjust and replenish goods according to the sales situation of the day, and have enough time to prepare for the next one. Open the door.
If you want, you can even change the way the supermarket operates, from an eight-hour operation to a 24-hour operation.
After having this system, we only need to go one step further and get a logistics system to cooperate with it, and we will be able to open supermarkets online in the near future.
So Amazon, Taobao Tmall, and JD.com online malls were born...
This is the evolution of POS supermarket settlement systems.
The design principle of this system itself is actually not complicated, and even the initial investment is not too large. It’s just that people nowadays don’t have such advanced presets of application scenarios. It’s still the old saying of today’s science workers - —In the catch-up stage, first resolve whether it is possible, and then discuss whether it is okay or not.
Everyone is crossing the river by feeling the stones. Regarding the future scenario application of the Internet information technology industry, a supermarket settlement system or a hospital outpatient system based on a LAN architecture is already the limit of everyone's imagination. This is the disadvantage of the polytechnic school. Everyone is accustomed to waiting for the country to allocate scientific research projects. The direction of research is mostly to solve domestic technical problems that are urgently needed. As for assisting commercial applications, everyone is confused and doesn’t know how. caught off guard.
Zhou Zhi’s graduation project that year was hospital software design. The instructor did not have any unnecessary requirements, not even code writing, as long as you could draw a qualified hospital workflow diagram. You can graduate as soon as you come.
That is to say, the work of each department of a hospital, such as registration, allocating clinics, treatment, prescribing medicine, checkout, dispensing medicine in the pharmacy... This set of work is divided into work modules and workflows, and drawn The database, control program, transmission program, calculation program, and statistical program that can support its work will be considered graduation after completing the system design.
For this reason, Zhou Zhi went back to his hometown and stayed at Uncle Santan's People's Hospital for two months, worked out a system design plan, and finally completed the defense of his graduation thesis. But only God knows whether the plan was incubated by the mentor and turned into a product.
A tall building rises from the ground. The system design framework that I am holding in my hand now is Zhou Zhi, who is ready to show it to Director Mai, and try to see if it can be completed according to my own ideas and firmly in accordance with the server model.
There is also a heated discussion in the industry regarding the working model of the Internet.
That is the choice between client mode and server mode.
The so-called client mode is to solve the problem of information transmission bottleneck. A system must be downloaded and installed on each terminal to make it a "client", so that those things that can be solved on the terminal can be All problems should be solved on the client side as much as possible. Only interactive data that really needs to be transmitted will be transmitted to the central server through the network for the final "big operation".
For example, the current system of Heheng is a typical client system.
The server mode is actually the later Internet mode. Each terminal does not need to download the client software, but directly accesses the system website through the terminal. All information is directly transmitted to the center for storage, and the local data required is also read from the website in real time. , the front end has no computing function, it is just an input and output port.
The advantage of this is that it achieves the uniqueness, authority, and versatility of the data. There will be no problem of data inconsistency caused by the clearing time difference between the central server and the client. Of course, it is the best way.
When the Internet matures and the network transmission speed meets the demand, the two architectural models also blossom. Among them, the client model develops into APP portals for video games, music, movies, etc., while the server model develops into All major website portals.
In the computer age, the east wind of website portals overwhelmed the west wind of APP portals. However, when we entered the smartphone era, the west wind of APP portals overcame the east wind of website portals.
Look at what the needs of the times are at that time.
However, today when the Internet is still faltering, adopting the server model will undoubtedly put great pressure on the network. Therefore, in China, the development of client systems is the mainstream, and the server is still only in the experimental stage.
As a veteran, Zhou Zhi, of course, wants to seize this foresight so that when the wind blows up, he will already be standing on the edge of the wind and at the same time have a pair of huge wings.
"It should be very useful." After Zhou Zhi read He Heng's system design, he said to Uncle Guan: "Thank you, Uncle Guan. I'll show it to Director Mai of the School of Computer Science. Maybe I can come up with one." Research direction.”
(End of this chapter)