Component-based software engineering (CBSE) is a process that emphasizes the design and construction of computer-based systems using reusable software “components.” The intent of domain engineering is to identify, construct, catalog, and disseminate a set of software components that have applicability to existing and future software in a particular application domain. Unfortunately, the existence of reusable components does not…
Step 1. Identify all design classes that correspond to the problem domain. Step 2. Identify all design classes that correspond to the infrastructure domain. Step 3. Elaborate all design classes that are not acquired as reusable components. Elaboration requires that all interfaces, attributes, and operations necessary to implement the class be described in detail. Design…
Component-level design occurs after the first iteration of architectural design has been completed. At this stage, the overall data and program structure of the software has been established. A component is defined in UML as: “a modular, deployable, and replaceable part of a system that encapsulates implementation and exposes a set of interfaces.” However, different…
In building, there are styles known to architects. If you speak of a style, they know what you mean. An architectural pattern, like an architectural style, imposes a transformation on the design of an architecture. However, a pattern differs from a style in a number of fundamental ways: (1) the scope of a pattern is…
Software Architecture is the structure, or structures, of the system that comprise of software components, the externally visible properties of the components, and the relationships among them. Architecture is not operational software, rather it is representative to allow you to see how effective your design is and consider alternatives. It focuses on components. It may…
Linking to an external site means you always need to give the full address. This includes the host, any subfolders, as well as the final file that you wish to link to. Additionally, you will need to prepend the protocol. As of 2019, Google and others are recommending everyone be using https (Hyper Text Transfer…
The most common form of linking will be to other pages within your website. These are often called internal site links, as they are part of your own website. When you link to another file, you need to specify the file name in the href attribute like is shown below. Notice that the only required…
Long web pages were common in the mid to late nineteen nineties. Old servers used to charge by the number of pages you stored on them, and the number of pages that were downloaded. Therefore many developers created long pages on content, instead of breaking it down into smaller chunks. To make navigation within the…
