Nó thực sự không bao giờ quá sớm để bắt đầu suy nghĩ về triển khai (hoặc các vấn đề khác truyền thống để lại cho sau này trong phát triển, như bảo mật hệ thống). Mặc dù đó là sự thật Tôi có phải là một coder Java hoặc phát triển một C + + để hiểu những khái niệm và sử dụng chúng? | 28 Hour 1 Q A Q. I ve seen the Unified Modeling Language referred to as UML and also as the UML. Which is correct A. The creators of the language prefer the UML. Q. You mentioned that object-oriented concepts play a major role in this book. Do I have to be a Java coder or a C developer in order to understand these concepts and to use them A. Absolutely not. Object-oriented concepts aren t just for programmers. They re extremely useful for system analysts who want to understand and model the area of knowledge their system works in. Q. You ve made the point that the UML is a great tool for analysts. The deployment diagram however doesn t seem like something that would be all that useful in the analysis stage of system development. Isn t it more appropriate for a later stage A. It s really never too early to start thinking about deployment or other issues traditionally left for later in development like system security . Although it s true that the analyst is concerned with talking to clients and users early in the process an analyst might think about the computers and components that will make up the system hardware. Sometimes the client dictates this. Sometimes the client wants a recommendation from the development team. Certainly a system architect will find the deployment diagram useful. Q. You mentioned that hybrid diagrams are possible. Does UML excuse me the UML impose limitations on which elements you can combine with which on a diagram A. No. The UML sets no limits. It s usually the case however that a diagram contains one kind of element. You could put class icons on a deployment diagram but that might not be very useful. Q. Figure shows a use case diagram for wash clothes. All this says is that a washing machine user wants to wash clothes. Do we really need a set of symbols to say that Can t we just say that in a simple sentence A. If that s all you had to say then you re right You could probably get away with just a sentence. In a typical development .
