Friday, February 14, 2020

Principles of Detail Design Essay Example | Topics and Well Written Essays - 750 words

Principles of Detail Design - Essay Example Clements et al differentiate architectural design from detailed design in a uniquely interesting way. He alluded that architecture could be defined as a form of design yet the reverse was not possible. The interpretation is that design is not within the realms of architecture since the end of any masterpiece can be manipulative. There is a close relation between detailed design, architecture and construction. From this, designers aiming for success in detailed design are obligated to have or obtain full understanding of the requirements and architecture of the system. Proficiency in particular design strategies such as object-oriented, programming languages, and methods and processes for software quality control becomes a requirement. Detailed design acts as a bridge between design and code in the same way that architecture provides a link between requirements and design. When it comes to implementation, it can be debated that most problem solving activities occur in the detailed des ign phase. This can be demonstrated in the case where a formal process is followed, and the requirements are met by the detailed design and architecture. In numerous real-world applications, intricate problem solving is deferred by the architectural design activity to the detailed design, predominantly through abstraction. In some instances, specifying requirements is also submitted to detailed design. In view of these reasons, detailed design has to assume the role of gatekeeper to ensure that the specification and design of the system are sufficiently completed even before construction begins. This can be particularly hard for large-scale systems built from scratch devoid of experience with the development of systems that are alike. Tasks such as understanding the requirements and architecture, documenting software design, evaluating detailed designs, monitoring and controlling implementation, and creating detailed designs, become major factors in implementing detailed design acti vity. In contrast to software architecture, where the comprehensive set of conditions are assessed and well understood, detailed design activity calls for designers to focus on the requirements assigned to their explicit components. After understanding the architecture and requirements for allocated components, is when the detailed design of software modules can begin. The components of detailed design include both behavioral and structural designs. This is demonstrated by the focus on interface design (which includes internal interface design and external interface design), graphical user interface design-which could be an extension of the designs started during architecture, and internal component design (both structural and behavioral), and data design. The Open-Closed principle (OCP) is a crucial principle for creating recyclable and adjustable systems that advance gracefully with time. The key idea behind the OCP is that working code should remain untouched and any new addition s should come as extensions of the original work. This does not mean that designs modification cannot occur; it means they should be done by incorporating new code

Saturday, February 1, 2020

Handling Data Comparing height and weight for Mayfield High School Essay

Handling Data Comparing height and weight for Mayfield High School - Essay Example But if I can turn this into a picture, I can then compare the boys data with the girls data. Heights of Boys and Girls And to compare boys and girls, I can put them both on the same graph. It looks like more boys are taller than girls, which I think is normal. I can do the same for weight. Weight of Boys and Girls And to compare the weights of boys and girls: From the graph above it seem that boys have a weight that is more spread out. Girls seem to be closer together, and don't seem to weigh more than 74 kg. It looks like the boys also weigh more, which makes sense if their taller. Stem and Leaf Since I already grouped all the data, I can record it in stem and leaf diagrams. That way, I can more easily find the median and the mode. Boys Height Stem Leaf Frequency 1.30 2, 2 2 1.40 5, 8, 8 3 1.50 0, 2, 3, 4, 8 5 1.60 0, 2, 5, 5, 7 5 1.70 0, 2, 2, 4, 5 5 1.80 0, 0, 0, 2, 5, 5, 6 7 1.90 0, 1 2 2.00 0 1 The mean height is easily found by adding up all the heights and dividing by 30. Adding up all the heights comes to 50.13, and dividing by 30 gives 1.67m. I can also find the median, which should be between the 15th and 16th numbers (written in pink), so it's 1.685, which rounds to 1.69. And the mode is the number that occurs most frequently, which is 1.80 (in red). Boys Weight Stem Leaf Frequency 30 8 1 40 0, 2, 3, 4, 4, 5, 7, 8 8 50 0, 2, 4, 6, 6, 7, 8, 9 8 60 2, 4, 6, 6, 8, 9 6 70 0, 2, 2, 3 4 80 0, 2, 6 3 90 0 I can get the mean, median and mode for boys weights the same way. The mean is the addition of all the weights divided by 30, which means 1763/30 or 58.767, which rounds to 58.8kg. The median is between the 15th and 16th numbers which is 57.5kg. There are 4 modes: 44, 56, 66, and 72. Girls...I can also see that boys tend to be taller than girls. But if I can turn this into a picture, I can then compare the boys data with the girls data. From the graph above it seem that boys have a weight that is more spread out. Girls seem to be closer together, and don't seem to weigh more than 74 kg. It looks like the boys also weigh more, which makes sense if their taller. The mean height is easily found by adding up all the heights and dividing by 30. Adding up all the heights comes to 50.13, and dividing by 30 gives 1.67m. I can also find the median, which should be between the 15th and 16th numbers (written in pink), so it's 1.685, which rounds to 1.69. And the mode is the number that occurs most frequently, which is 1.80 (in red). I can get the mean, median and mode for boys weights the same way. The mean is the addition of all the weights divided by 30, which means 1763/30 or 58.767, which rounds to 58.8kg. The median is between the 15th and 16th numbers which is 57.5kg. There are 4 modes: 44, 56, 66, and 72. The range that holds the mode for boys and girls is the same in both cases. This is probably because boys height is more spread out than girls. It could also be because there is a mistake in the sampling. Since there are more than one mode for boys weight, there's not a lot I can so about it.