Rouying Tang

Hello Lyana, you made a good point that “the effective database modeling involves understanding both the business requirements and the database features” the solution evaluations you provide are very thoughtful as well.

Hello Lyana,
You pointed to a key issue in system and software designs. The accessibilities for people with disabilities are extremely important. The people with disabilities may have special needs, but sometimes a good design can avoid the extra cost on those kind of systems. For example, more physical buttons and inputting reactions.

Hanqing, the suggestions you made are practical and specific. Especially the first point “isolate sensitive databases”. I understand why you put it first. An isolated sensitive database makes sure limited accessibilities and prevents catastrophe risk caused by hazard of the destroy of other databases.

Nice analysis Xinten, a good introduction toward different roles. And I really agreed on your point that important to include different roles in a team.

Hello Hanqing,
You made a good analysis toward the question why cross model analysis is necessary. I agree with you on your idea that the complexity of the information and the large amount of data volume urgent it to happen.
Thank you for your sharing.

Hello Yinjiang, thank you for your sharing. As you stated single diagram model is not enough to illustrate the complete business case. And agree with anyone else, you are so smart!

Oh, Zhixin little sister, like your post the most. They are so cohesive and easy to read. I agree with you on the idea that the cross checking between models ensure the accuracy and the correctness of the requirements.

Hello Jing, good job.
Thank you for your explanations toward the case diagram, CRUD, class diagram, activity diagram and the importance of cross-checking between models.

Thank you for your explanations, Lyana. You made a good analysis on each diagrams and models and the relationship between them.

It is true that different people can have various views toward same things, which raised different class diagram derived from the same narrative descriptions. I do believe there are no correct or wrong from the perspective, however, at the same time the logical error and factors missing must be brought into considerations, which must be considered…[Read more]

Thank you for your sharing, thank you for your sharing for those there concept, I think they are good standard to evaluation the diagram logics.

Thank you for your sharing Sarush, you mentioned a good idea about the business requirement and data requirement, which should be considered on the evaluations toward the diagram designs.

Thank you for your sharing Menqiao. It is true that even everyone has a different version of understanding, but it is still hard to said all of these can be correct. We need to exclude the logical error or missing information.

Thank you Xiaozhou, I agree with you on the idea that there are objective factors exist but objective factor also used.

Thank you, Mahugnon. I fully agree with your idea that as long as the associations make sense, it is fine. Every one get different view from their perspectives and it makes the diagrams more accurate and diversity instead of being wrong.

Hello Yingyan,
Good summary, you made good explanations toward the definitions about logical database model and physical database design. I can’t agree more on your idea and the support points toward the necessary of analyzing data first in all cases.
Thank you

Hello Xiaozhou,
Can’t agree more on your support points toward the importance of finding the correct directions of data need analysis before database designing. Nice job.
Thank you

Hello Jing,
Nice opinion, you made a good explanation on the importance of data needs analysis conducted before the physical database designing.
Thank you

I agree on the idea of to design physical data base according to its data needs. We need to set the goals and directions correctly to make sure our walk into the right directions. I think analyzing the data needs first is a better strategy. I think all database designs must follow this rule to make the project more efficient and function well. For…[Read more]

Hello Xinteng,
Thank you for your sharing you mentioned an important technology Big Data, which included tons of different information, some can even be real-times. And new analysis technology must be conducted as well.