Real-World Examples of Analysis and Design Classes

1. Analysis Classes

• E-commerce System:
  • Use Case: Identify analysis classes such as “Customer,” “Product,” “Order,” and “Payment” to understand the entities and relationships involved in an e-commerce system.
  • Purpose: Analyze user requirements and business processes to determine what functionalities the system should support and how they interact.
  • Example: The “Customer” class may have attributes like name, email, and address, while the “Order” class may have attributes like order ID, items, and total price.
• Hospital Management System:
  • Use Case: Define analysis classes like “Patient,” “Doctor,” “Appointment,” and “Medical Record” to capture the key entities and relationships in a hospital management system.
  • Purpose: Analyze the workflow of patients, doctors, and administrative staff to identify requirements for scheduling appointments, managing medical records, and coordinating patient care.
  • Example: The “Appointment” class may include attributes such as date, time, doctor ID, and patient ID, reflecting the scheduling process.

2. Design Classes

• E-commerce System:
  • Use Case: Translate analysis classes into design classes to specify how the system will be implemented.
  • Purpose: Define the internal structure and behavior of software components to fulfill the requirements identified during analysis.
  • Example: Design classes may include “CustomerManager,” “ProductCatalog,” “OrderProcessor,” and “PaymentGateway,” each responsible for specific functionalities and interactions within the system.
• Hospital Management System:
  • Use Case: Develop design classes like “AppointmentScheduler,” “PatientRecordManager,” “DoctorRegistry,” and “BillingSystem” to detail the implementation of system components.
  • Purpose: Specify algorithms, data structures, and interfaces to support the functionalities required by the hospital management system.
  • Example: The “AppointmentScheduler” class may include methods for scheduling, canceling, and rescheduling appointments, with algorithms to optimize appointment slots and avoid conflicts.

In System Design, understanding the difference between design classes and analysis classes is crucial. Analysis classes are like detectives they investigate and understand the problem at hand. They focus on what the system needs to do, without diving into how it will be done. These classes help developers grasp the requirements and goals of the software. While the design classes are like architects they take the findings from analysis classes and create a plan for how the software will work.