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Dongjie Wang commented on the post, Week 13 – Discussion, on the site 6 years, 5 months ago
there are so many cloud service providers in the market, such as Amazon Web Service (AWS), Microsoft Azure, Google Cloud Platform, and Adobe. The different providers have different pricing and functions, I would recommend the company to try at least two vendors which are Amazon and Google because both of the company offers the best service in the…[Read more]
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Dongjie Wang commented on the post, Week 14 – Discussion, on the site 6 years, 5 months ago
agree with you Binju. sometimes more cost can reduce the potential risks however it does not mean the more expensive the better. companies have to choose the deployment method to depend on the business needs, requirements, and resources.
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Dongjie Wang commented on the post, Week 14 – Discussion, on the site 6 years, 5 months ago
Thank you for your sharing, Xinteng. when weighing the pros and cons between the different deployment approaches, consider what your business needs most and which option will give the most benefit back to the company with the smallest impact on your operations during the transition.
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Dongjie Wang commented on the post, Week 14 – Discussion, on the site 6 years, 5 months ago
Well said Yijiang. the company should balance the needs and resources when they choosing the deployment method.
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Dongjie Wang commented on the post, Week 12 – Discussion, on the site 6 years, 6 months ago
Just a question: do you think if people have visual impairment use screen reader software will result in some information security problems? and how to avoid them?
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Dongjie Wang commented on the post, Week 12 – Discussion, on the site 6 years, 6 months ago
Hi, Mengqiao, thank you for sharing the story.
I agree with you. People who have the colorblind problem can still work and live normally. I think the Chinese Government establishes that rule to avoid the potential traffic accident, but they did not realize people are colorblind have their own way to distinguish the colors. Your father is very…[Read more] -
Dongjie Wang commented on the post, Week 12 – Discussion, on the site 6 years, 6 months ago
I like your post, Yijiang.
People who have the disability could achieve a better life. For example, Stephen Hawking, a great English theoretical physicist. He interacted with his computer using Intel’s system. “Hawking’s computer system uses a rudimentary timed interface. A cursor automatically scans across an on-screen keyboard, and whenever t…[Read more] -
Dongjie Wang commented on the post, Week 12 – Discussion, on the site 6 years, 6 months ago
Computer accessibility refers to the accessibility of a computer system to all people, regardless of disability type or severity of impairment. One example of disability causes a barrier to effective computer use is visual impairment, such as low-vision, blindness, and color blindness. Because in the most situation, computer interfaces with visual…[Read more]
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Dongjie Wang commented on the post, Week 11 – Discussion, on the site 6 years, 6 months ago
In addition, I think log management and least privileges are also good method to protect the database security,
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Dongjie Wang commented on the post, Week 11 – Discussion, on the site 6 years, 6 months ago
Yingyan, good point, In order to protect the data efficiently, the organization should classify the data based on the sensitive level. Therefore, the organizations could implement control methods more cost-effective and efficient.
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Dongjie Wang commented on the post, Week 11 – Discussion, on the site 6 years, 6 months ago
Binju, I agree with your point. Designing a database should be a collaborated work which includes both parties. the collaboration can create a functional and secure database for the organizations.
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Dongjie Wang commented on the post, Week 11 – Discussion, on the site 6 years, 6 months ago
To designing the database, I think team members who understand the application requirements and the database design expert who is professional in database structure designing should collaborate. Because during the database design process, understanding the business rules and application requirements is critical. If only team members responsible…[Read more]
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Dongjie Wang commented on the post, Week 10 – Discussion, on the site 6 years, 6 months ago
Thank you for your sharing, Haitao.
None of a single diagram can represent all the useful information. Therefore, organizations should use cross checking method to ensure the accuracy and completeness. -
Dongjie Wang commented on the post, Week 10 – Discussion, on the site 6 years, 6 months ago
Thank you Linlan, I agree with you. Without checking, the organization could omit some mistake in the diagrams.
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Dongjie Wang commented on the post, Week 10 – Discussion, on the site 6 years, 6 months ago
Good Point Yingyan,
The single diagram can only contain limited information, but an integrated model can include different information. The integrated model can ensure the consistency among all the diagrams, which can improve the development quality and speed. -
Dongjie Wang commented on the post, Week 10 – Discussion, on the site 6 years, 6 months ago
An integrated model provides the connection between different diagrams which can help organizations clarify the stakeholders’ needs, development requirements and business rules. Different from a single diagram, an integrated model contains various diagrams which represent diverse information. The use case diagram shows the system boundary, the i…[Read more]
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Dongjie Wang commented on the post, Week 9 – Discussion, on the site 6 years, 6 months ago
Based on the different understanding, each of us might create different diagrams. I think the diagrams do not have to look same but the structures and requirements need to be in a similar form. To evaluate the class diagrams, we can evaluate the following elements:
–relationship sets
–data consistency
–primary keys and foreign keys setting -
Dongjie Wang commented on the post, Week 8 – Discussion, on the site 6 years, 7 months ago
Thank you Xinteng, you brought up a fresh idea of the scenario to me. I did some research online and tried to figure out what scenario doesn’t require the data modeling techniques, but I didn’t find one. Thank you for you sharing,
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Dongjie Wang commented on the post, Week 8 – Discussion, on the site 6 years, 7 months ago
I like you post Yingyan. In addition, begin the data modeling before design physical database can be helpful for designing the security infrastructure for the organization because the date modeling process will provide the details and security needs for sensitive data.
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Dongjie Wang commented on the post, Week 8 – Discussion, on the site 6 years, 7 months ago
Well said Hana,
I love the points you mentioned data is the main actor and the database is assistance for data. The reason that database existing is for helping organizations to better use and secure their data. The structure of database should be compliance with the detail of data. - Load More