Xiaomin Dong

Well said. In my opinion, in order to cross checking, simulation is an useful method to explore or identify the concerned behaviors or performances of real systems.

Nice point. Each model/diagram have different function, integrated models means combine the multiple models/diagrams together to interpret a system.

Well said. With cross checking between models, it can ensure that the requirements are accurate and correct.

I agree with you that it is important to having cross checking. It may find some mistakes that we couldn’t find without cross checking.

Nice point. I also think data integrity and accuracy is really important during the process of database design. In most companies, there are areas where important business decisions are routinely made based on data.

Well said. Database design is a complex, but necessary process. It involves creating a functional database system that is able to manage all of a company’s information in one place.

Nice point. As part of the role they will be responsible for implementing data dashboards to all levels of the organization. They may not understand the problem domain issues but does understand good database design.

Well said. Role-based access control is really important to an organization in regarding the protection of data.

I agree with you. Designing a database requires an understanding of the business functions you want to model. It also requires an understanding of the database concepts and features that you want to use to represent those business functions.

Well said, Human-computer interaction researchers at Microsoft envision a future where technology enhances the human experience for everyone, everywhere. Research results are routinely translated to technological innovations that impact Microsoft customers and products and benefit society at large through open science collaborations.

Great point. Like I said in my comment, an employer in the any country should expect to make reasonable accommodation to employ a disabled person, which includes “Making existing facilities used by employees readily accessible to and usable by persons with disabilities; job restructuring, modifying work schedules, reassignment to a vacant p…[Read more]

Thank you for sharing your own experience Mengqiao. In the terms of traffic light, in some countries of China, the traffic light in sidewalk is designed not only by the color (red/green) but also by the pattern. For example, if the pattern is static man in red it means stop, and if the pattern is walking man in green it means move. I think it is a…[Read more]

Nice point. There are also a concept called “accessibility features of computer”, which are designed to help people with disabilities use technology more easily. For example, a text-to-speech feature may read text out loud for people with limited vision, while a speech-recognition feature allows users with limited mobility to control the computer…[Read more]

Well said, I totally agree with you. I also think that everything should put more “humanity” or user-friendly when the idea was come up, especially in the technology aspect.

Usability is part of the broader term “user experience” and refers to the ease of access and/or use of a product or website. A design is not usable or unusable per se; its features, together with the context of the user (what the user wants to do with it and the user’s environment), determine its level of usability. The official ISO 9241-11 defin…[Read more]

As the saying goes, there are a thousand Hamlets in a thousand people’s eyes. Even if we draw a class diagram from the same narrative descriptions, those class diagrams could not be all correct. When we evaluating class diagrams, we can look for the cohesion and coupling. For the coupling, we can see how closely related classes are linked from a q…[Read more]

The purpose of building a physical design of the database is to optimize performance while ensuring data integrity by avoiding unnecessary data redundancies. During physical design, people transform the entities into tables, the instances into rows, and the attributes into columns. In my opinion, the way that the developers start designing…[Read more]

I believe that have integrated models means combine the multiple models/diagrams together to interpret a system. Each model/diagram have different function. For example, use case diagram is a representation of a user’s interaction with the system that shows the relationship between the user and the different use cases in which the user is…[Read more]

Database design is a complex, but necessary process. It involves creating a functional database system that is able to manage all of a company’s information in one place. When designing a database, there are a lot of factors to consider in order to ensure it can do what is required of it.
First of all, there is a role called database designer, w…[Read more]

Today’s manufacturing industry greatly relies on computer technology to support activities throughout a product’s life cycle. Effective and efficient information sharing and exchange among computer systems have been critical issues. Formal information modeling languages that describe information requirements unambiguously is an enabling t…[Read more]