What is the online training management system?

The enterprise training management system is a training and examination platform that integrates online learning, online examinations and learning information management. It can help training administrators complete training tasks at low cost and efficiently. Enterprise training management systems generally have functions such as course management, community, and question-and-answer, which can quickly precipitate corporate knowledge. In fact, community Q&A is an important channel for knowledge base precipitation. By motivating employees to ask questions and experts to answer, the knowledge precipitation behavior permeates all employees' behaviors and realizes “unconscious” knowledge production. The enterprise training management system can also analyze and optimize the curriculum based on the course records and key behavior records of the students. For example, through the analysis of key nodes such as the length of the students' study, exit nodes, and weak links in the examination, the optimization and innovation of the curriculum can be realized, thereby stimulating the enthusiasm of all staff for learning.

What are the functions of the online training management system?

1. The popular online training system with the recording, broadcasting and live broadcast function is aimed at the current situation where many training teachers are busy with training work and there is not enough time. The function of recording and broadcasting to live broadcast has been launched for users, which has effectively alleviated the time constraints of many online trainers. Users of online training can record and broadcast the course content in advance, and the online training system directly inserts the recorded content into the live broadcast course for playback at the beginning of the live broadcast, so as not only to ensure the live broadcast in the case of tight time, but also will not affect the order of the course schedule.

2. The function of group live broadcast. Some online trainers often need to face a large number of students, which has caused the trainers' attention to the students to plummet. The online training system can group all online students, and the trainers can enter different groups to conduct targeted training for the students, which can effectively increase the attention of online trainers to the students when the number of students is too large. The degree of attention to the students.

3. The function of live streaming in recent years, the development of online training has shown a trend towards virtual reality. Many online trainers hope to be able to fully mobilize the attention of students through virtual reality. The demand for bandwidth and traffic for virtual reality teaching is extremely high. Therefore, the online training system has also developed the function of live streaming, which can effectively increase the network bandwidth of online trainers and enable trainers to achieve better teaching results through the online training system. A professional online training system can bring better teaching methods to many trainers engaged in online training occupations, and provide more convenient and practical functions. At present, the online training system mainly has the function of recording and broadcasting videos for live broadcast and grouping live broadcast of trainers with a large number of trainees. At the same time, it can also provide the futuristic function of streaming live broadcast according to the needs of trainers. These are the highlight functions of the online training system.

4. Learning resource management: combined with the needs of enterprise talent development, integrate various learning resources into the system to facilitate employees to learn anytime, anywhere.；

5. Training business management: according to some specific business needs, develop or purchase training resources to help employees improve specific business capabilities.；

6. Report analysis and management: The system will automatically generate data reports on the learning status and learning progress of employees. Managers can view the data reports for analysis and adjust the course content based on the analysis.；

7. Effect evaluation management: You can specify some test papers for the course content, and employees can conduct tests after learning, which can effectively verify the learning results of employees.；

8. Learning community management: establish a learning community to facilitate employee communication and feedback；

9. Organizational structure management: Let employees have a deeper understanding of the organizational structure of the enterprise, which can play a role in promoting the upload and distribution of information.；

10. Role/authorization management: open different authorizations to employees of different levels or positions；

11. Online course management: traditional teaching forms of courses help employees learn systematically.

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Four methods of anti-screen recording in online training management system?

One: Anti-theft watermark 

What needs to be popularized for everyone here is that there are three types of anti-theft watermarks.，

The first is a fake watermark, which is a watermark that will float on the live broadcast platform seen on the Web page. This kind of watermark is extremely insecure, and the front-end programmer can log out with just one piece of code. 

The second is also a fake watermark. It just puts the above layer of watermark on the client, and only the client can be used to play it. In fact, the principle is the same, because the watermark and the video stream are output separately. 

The third is the watermark we are using. The watermark and the video stream are mixed together as keyframe output watermarking technology. This watermarking technology can effectively prevent the video from being extracted and captured, so it is the safest watermarking technology. In addition, we can think from the following aspects. The movement of anti-theft watermarks is also very important. Some later software, such as AE, can track and remove watermarks by video. As long as the movement pattern is regular from left to right, this kind is easy to get rid of. So our solution is to let the watermark move randomly in 10 different modes of movement, which greatly increases the difficulty of removing the latter stages of the video, and it can be said that it is almost impossible to remove traces.

Two: How to prevent software from ripping almost 100%. We often watch some video encryption software or online class platforms that claim to have anti-screen recording functions, but what is the current anti-software screen recording technology on the market? The answer is to just pass a simple blacklist protection, just put some common screen recording software on the market, for example, Baidu's previous 20 pages of software are added to the blacklist, once the blacklist screen recording software is turned on, it can be detected.

This way of preventing software from ripping is very tasteless, because screen recording software, new and old, domestic and foreign, theoretically have unlimited screen recording software. The blacklist is completely impossible to prevent. What we need is a general solution. After years of research, we have found that all screen recording or screen capture software, once it is run on the win system, needs to call some of the underlying functions of win, we can monitor in real time whether these functions are called! This low-level technology is very difficult to achieve! But we did it!

So it doesn't matter if you are on the blacklist or not, because if you record the behavior of the screen, we will monitor it, thus completely ending this method of ripping! 

For example, the picture below shows the screen recording software that has been renamed at will, and it is not in any blacklist, and it will be detected immediately! Whether it is the browser's screen recording plug-in or the computer-side screen recording software, all of them can be detected!

Three: The technology of studying multi-level hybrid encryption algorithms is also the most rare! Because the time to study a complex encryption algorithm, if there is a genius programmer, it may only take one or two years, but more than ten years is normal! The video encryption algorithms currently on the market can be roughly divided into two categories： 

1. General-purpose algorithm. This kind is generally used for online school or online education websites for online on-demand use. It is captured in an encrypted format through packet capture technology, which is similar to segmented slicing, but the disadvantage is obvious. It is symmetrical encryption, which can be cracked simply by decompiling, so there are various website generation extraction services.

 2. AES256 encryption algorithm. This is also almost all encryption software at present. Note that I'm talking about all of them. Almost all of them are using this AES256 encryption algorithm. The security is higher than the previous one, but unfortunately, there have been cracking schemes for this algorithm in foreign countries. Don't say too much about the benefits involved, otherwise there won't be so many treasures.Encrypted video extraction business. Later, our research found that the best way is to study multi-level hybrid encryption algorithms. For example, our algorithm has five layers in it. If you want to extract it, the programmer brother is willing to abandon the hairline! And there is a core point that a small part of the video will be placed in the cloud after encryption, and only the local screen recording authorization matches the cloud data authorization! Can be decrypted! Thus fundamentally solving this method of extraction! 

Four: Prevent virtual machine ripping and hardware ripping. Almost all current encrypted video software or online class platforms cannot prevent virtual machine ripping. Even if there are a few that can prevent it occasionally, they still cannot prevent de-virtualized virtual machines! The detection technology of virtual machines is very complex. In addition to VMs, virtual machines have various other virtual machines. How to target each of them, the best general solution is also to detect the call of the win function! Real-time monitoring!

Instead of just simply blacklisting VMs, virtual machines are also blacklisted! As for hardware-based ripping, such as capture cards, such as screen-recording graphics cards, monitors, etc., how can this be prevented? This requires very strong technical support. We are currently the only online course platform that can prevent hardware class ripping! It also includes de-virtualized virtual machines! As for whether other platforms can prevent it, here Xiao V recommends that everyone buy one and try it, and you'll know, Hehehe. To prevent hardware ripping, we also need to monitor the output stream of screen pixels. Once the output of the screen output stream is not output normally, then we will monitor it. This technology will use a lot of win's underlying application knowledge. So the difficulty is very high! The above are some thoughts on how to realize the anti-screen recording of online education live broadcast, and how to answer 100% in all directions. We still have a long way to go to protect copyright! As the strongest anti-ripping platform in China, Vttalk will still move forward!