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System Architecture: Patient Care System

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3.3 System Architecture The design of system basically defines the architecture of system of how the system can be built. This system can be divided into two groups; logical design and physical design. Logical design group comprises the context diagram, data flow diagram and entity relationship diagram. Meanwhile, the wireframes fall under the physical design. 3.3.1 Context Diagram The highest level in the data flow diagram is the context diagram which illustrates the main data flow between entities and the one main process. Basic inputs, general system and the outputs included in the overview of system is the initial context diagram. Process 0 represents Patient Care System and generalizes the functions and flow in the entire system. …show more content…

Users of this application are required to log in with verified username and password to access to the application of Patient Care System to ensure data integrity and security. To enter the system, a username and password will need to be filled by the user. The system will validate the password and username availability in the login database. However, if the username or password that has been inserted by the user is not valid, the warning message will be displayed and the users are required to enter new account. Figure 3.4 below shows Data Flow Diagram for the login …show more content…

Patient details are obtained directly from patient. Figure 3.8 below shows the data flow diagram for adding a new patient’s record. Figure 3.8 : Data Flow Diagram for Insert New Patient Record 3.3.3.6 Update Patient Record In order to update a patient’s record, clinic staff needs to retrieve the patient details from the database. This can be done by entering the patient’s ID and the details will appear on the text boxes where the patient’s details can be updated. Patient’s ID is actually patient’s identification card (IC) number since the ID’s is unique. After editing is done, the record is saved in the database. Figure 3.9 below shows the process details. Figure 3.9 : Data Flow Diagram for Update Patient Record 3.3.3.7 View Report In order to view a patient’s report, clinic staff needs to retrieve the patient details from the database. This can be done by entering the patient’s ID and the report will appear on the text boxes. Figure 3.10 below shows the process details. Figure 3.10 : Data Flow Diagram for View Patient

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