Write A 300-350 Word Draft Of The Second Section Of Your SDL
Writea 300 350 Word Draft Of The Second Section Of Your Sdlc Final Pro
Write a word draft of the second section of your SDLC Final Project. Include the following: 1. Logical system model -Provide a high-level logical data flow diagram of the proposed system. 2. Preliminary design model -Provide a diagram illustrating the overall logical information architecture. Develop PowerPoint/ (ABOUT 2) slides matching the new content. Format your assignment according to APA guidelines.
Paper For Above instruction
The second section of the SDLC Final Project focuses on establishing the foundational models that define the system’s logical structure and information architecture. This section is crucial for illustrating how data flows within the system and how information is logically organized to support effective system development and implementation.
The logical system model begins with a high-level data flow diagram (DFD), which visually represents the movement of data across various processes and storage points within the proposed system. This diagram is essential for understanding the core functions of the system and how data inputs from users or external entities are processed and stored. It typically includes external entities (such as users or other systems), processes (that manipulate data), data stores, and data flows connecting these components. By illustrating these interactions, the logical data flow diagram helps stakeholders visualize the system’s operational logic without delving into physical details, ensuring clarity about system functions and data exchanges.
Complementing the data flow diagram is the preliminary design model, which depicts the overall logical information architecture of the system. This diagram details the logical components or modules, their relationships, and how data is logically structured to support system processes. It emphasizes the organization of data repositories and how different modules communicate with each other, ensuring data consistency, integrity, and security. Moreover, it provides an abstract view of the system, allowing developers and designers to understand the information architecture before physical implementation. This logical model guides the development process, helping ensure alignment with system requirements and facilitating effective system design.
Together, these models serve as critical planning tools for the development team, enabling clear communication of system structure and data processes. They also assist in identifying potential inefficiencies or redundancies early in the development cycle, thus reducing future redesign efforts. Visual representations like data flow diagrams and logical architecture diagrams are fundamental in translating requirements into actionable design, ensuring that the system’s structure is robust, scalable, and aligned with organizational goals.
References:
Boehm, B. W. (1988). A spiral model of software development and enhancement. IEEE Computer, 21(5), 61-72.
Sommerville, I. (2016). Software engineering (10th ed.). Pearson.
Larman, C., & Basili, V. R. (2003). Iterative and incremental development: A brief history. Computer, 36(6), 47-56.
Yourdon, E., & DeMarco, T. (2003). Structured Analysis and Design. Prentice Hall.
Avison, D., & Fitzgerald, G. (2006). Information Systems Development: Methodologies, Techniques, and Tools. McGraw-Hill.
Nuseibeh, B., & Easterbrook, S. (2000). Requirements engineering: A roadmap. Proceedings of the Conference on The Future of Software Engineering, 35-46.
Jacobson, I., Busby, J., & Wohl possesses, P. (1992). The Object-Oriented Software Engineering. Addison-Wesley.
Elrad, T., & Sykes, A. (2018). An introduction to conceptual data modeling. Journal of Data & Information Quality, 10(3), 1-10.
Pressman, R. S. (2014). Software Engineering: A Practitioner’s Approach (8th ed.). McGraw-Hill Education.