06 Aug Discuss the major steps in System Design and why system architecture is important.
Please respond to each post with 150 words.
post 1: Discuss the major steps in System Design and why system architecture is important.
System design is the first design stage for devising the basic approach to solving the problem. The system design is when developers will decide the overall structure and style. The system architecture is important because it determines the organization of the system into subsystems. Also with system architecture you will devise a high-level strategy for solving problems and building solutions. Within the system design you will make the following decision:
Estimate system performance
Make a reuse plan
Organize the system into subsystems
Identify concurrency inherent in the problem
Allocate subsystems to hardware
Manage data stores
Handle global resources
Choose a software control strategy
Handle boundary conditions
Set trade-off priorities
Select an architectural style
System Use Case Diagram
This use case diagram shows how different users and accounts engage with the ITOT System. It also shows the different actions and functions available for each user. When designing the system there could be many different use case diagrams depending on the level of function of the system. Each use case diagram will give the developers a break down of the different actors and functions that will be needed to make the system do what it is designed for.
I did not really have any issues with the use case diagram because I had done this before in the previous class so I had a good idea of what needed to be done.
post 2: System Design is a crucial phase in software development that focuses on transforming requirements gathered during the analysis phase into a detailed design that can be implemented by developers. The major steps in System Design include:
Architectural Design: This step involves defining the overall structure and organization of the system. It includes selecting the appropriate architectural style (e.g., layered, client-server, microservices), identifying key components, and establishing communication patterns between them.
Detailed Design: In this step, each component identified in the architectural design is further detailed. It includes defining data structures, algorithms, interfaces, and interactions between components.
User Interface Design: This step focuses on designing the user interface of the system, ensuring that it is user-friendly, visually appealing, and meets the needs of the end-users.
Database Design: Database design involves creating a detailed schema for the database, specifying tables, relationships, and data constraints.
Security Design: Security considerations are critical in system design to ensure that the system is protected against potential threats and vulnerabilities.
System architecture is important for several reasons:
Scalability: A well-designed architecture allows the system to handle increasing demands and adapt to changes in workload and user base.
Maintainability: A good architecture makes the system easier to maintain, modify, and enhance over time.
Performance: Properly designed architecture can improve system performance and response times.
Reusability: An architecture that promotes modularity and component-based design facilitates code reuse and accelerates development.
Cost-Effectiveness: A well-thought-out architecture can optimize resource utilization and minimize hardware and infrastructure costs.
I have decided to attach the original shopping cart use case diagram that I had completed prior to receiving feedback from the professor. I’ve looked at a handful of the other images in here and they are all great examples, and wanted to maybe show one that wasn’t that great from the start and needed a little polishing to make it better. In short there wasn’t enough detail in my image to fit the needs of the IT Online Requirements Specification, there weren’t enough relationships laying out how the use case flows from each entity of the online system. I look forward to your feedback!
– Bob
Requirements: 150 words each
