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Xiaomin Dong commented on the post, Week 14 – Discussion, on the site 6 years, 3 months ago
Nice explanation of each deployment methods of system, Organization should consider the values that each methods brings to us based on the variety of factors.
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Xiaomin Dong commented on the post, Week 14 – Discussion, on the site 6 years, 3 months ago
Nice point. Organization should consider do things within their capabilities. Deploy a system is not a moment, it has long way to go.
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Xiaomin Dong commented on the post, Week 14 – Discussion, on the site 6 years, 3 months ago
I totally agree with you. Cost, urgency, complexity and experience are really importance factors when considering deployment of a system.
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Xiaomin Dong commented on the post, Week 14 – Discussion, on the site 6 years, 3 months ago
In terms of two systems be run in parallel, it has pros and cons. The pros are parallel running allows results to be compared to ensure that the new system is working without any errors. If errors are found, user can refer to the old system to resolve the problem and make modifications to the new system thus operation can continue under the old…[Read more]
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Xiaomin Dong commented on the post, Week 13 – Discussion, on the site 6 years, 4 months ago
Nice point. I would recommend the AWS as well, not only from the cost perspective, but also the consideration of security controls.
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Xiaomin Dong commented on the post, Week 13 – Discussion, on the site 6 years, 4 months ago
I would like to recommend the Amazon Web Services (AWS). AWS provides on-demand cloud computing platforms to individuals, companies, and governments. The technology allows subscribers to have at their disposal a full-fledged virtual cluster of computers, available all the time, through the internet. The fees are based on a combination of usage,…[Read more]
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Xiaomin Dong commented on the post, Week 7 – Discussion, on the site 6 years, 4 months ago
Nice point. Emphasis is placed on the need for the implementation of “quality” information models to facilitate an integrated manufacturing environment. How information models are used to define data requirements and how, in a practical application, information models enable information sharing and exchange are described.
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Xiaomin Dong commented on the post, Week 7 – Discussion, on the site 6 years, 4 months ago
I agree with you. If I am working with an IT organization that has not adopted a formal standard for process modeling, the following might be my advice to entice them to do so.
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Xiaomin Dong commented on the post, Week 7 – Discussion, on the site 6 years, 4 months ago
Well said. Effective and efficient information sharing and exchange among computer systems have been critical issues.
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Xiaomin Dong commented on the post, Week 8 – Discussion, on the site 6 years, 4 months ago
Nice point. The data integrity is really important. In most companies, there are areas where important business decisions are routinely made based on data.
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Xiaomin Dong commented on the post, Week 8 – Discussion, on the site 6 years, 4 months ago
Well said. the risks that a project bypasses the formal analysis maybe a data leaks, deployment failures, the abuse of database features, hopscotch, broken databases, so and so forth.
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Xiaomin Dong commented on the post, Week 8 – Discussion, on the site 6 years, 4 months ago
Great point. In my opinion, the way that the developers start designing immediately based on their assumption about the objects that must be tracked in persistent storage is not appropriate and efficient.
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Xiaomin Dong commented on the post, Week 8 – Discussion, on the site 6 years, 4 months ago
Well said. during physical design, people transform the entities into tables, the instances into rows, and the attributes into columns.
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Xiaomin Dong commented on the post, Week 8 – Discussion, on the site 6 years, 4 months ago
I agree with you, the purpose of building a physical design of the database is to optimize performance while ensuring data integrity by avoiding unnecessary data redundancies.
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Xiaomin Dong commented on the post, Week 9 – Discussion, on the site 6 years, 4 months ago
Nice point, even if we draw a class diagram from the same narrative descriptions, we may have different interpretation of it.
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Xiaomin Dong commented on the post, Week 9 – Discussion, on the site 6 years, 4 months ago
Nice point, even if we draw a class diagram from the same narrative descriptions, we may not have different interpretation of it.
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Xiaomin Dong commented on the post, Week 9 – Discussion, on the site 6 years, 4 months ago
Nice point. In my opinion, we could also evaluating class diagrams by look at the cohesion and coupling in the diagrams. It is best to have classes that are loosely coupled and highly cohesion.
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Xiaomin Dong commented on the post, Week 9 – Discussion, on the site 6 years, 4 months ago
Well said. Even if we draw a class diagram from the same narrative descriptions, those class diagrams could not be all correct.
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Xiaomin Dong commented on the post, Week 9 – Discussion, on the site 6 years, 4 months ago
I agree with you. as the saying goes, there are a thousand Hamlets in a thousand people’s eyes.
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Xiaomin Dong commented on the post, Week 10 – Discussion, on the site 6 years, 4 months ago
I agree with you, a CRUD diagram shows what types of processing is performed on data by a system, indicating them in a matrix format for each function.
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