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E D U . SA  \nDR ABDULLAH ALZAHRANI. AAHZAHRANI@UQU.EDU.SA  \n1  \nSystems Design and  \nModelling   \n􀀁Systems Design  \n􀀁 Process Modelling  \n􀀁 Data Flow Diagrams  \n􀀁Database Design  \nSystems Design (1)  \nSystems Design (2)  \nDR ABDULLAH ALZAHRANI. AAHZAHRANI@UQU.EDU.SA  \n4  \nSystems Design (3)   \n􀀂 SYSTEM DESIGN the specification or construction of a technical, computer-based solution for the business requirements identified in a system analysis . (Note: Increasingly, the design takes the form of a working prototype.)  \n􀀂 DESIGNER System designers are technology specialists for Information systems  \n􀀂system designers are interested In information technology choices and in the design of systems that use chosen technologies. Today's system designers tend to focus on technical specialities .  \n SysDetsemign  \n􀀂 METHODS:  \n1. Modern Structured Design  \n􀀃Structured design techniques help developers deal with the size and complexity of programs  \n􀀃A system design technique that focuses  \non processes and decomposes the system's processes into manageable  \ncomponents.  \nDR ABDULLAH ALZAHRANI. AAHZAHRANI@UQU.EDU.SA  \n6  \nSystems  \n Design (5)  \n􀀂 METHODS:  \n2. Prototyping  \n􀀃The prototyping approach is an iterative process involving a close working relationship between the designer and the users .  \n􀀃doesn't necessarily fulfil all design requirements.  \nSystems Design (4)  \n􀀂 METHODS:  \n3. Object-Oriented Design  \n􀀃 an approach used to specify the software solution in terms of collaborating objects, their attributes, and their methods  \n􀀃 the newest design strategy.  \nDR ABDULLAH ALZAHRANI. AAHZAHRANI@UQU.EDU.SA  \n8  \nProcess Modelling  \n􀀂 MODEL  \n􀀂 a graphic representation of reality.  \n􀀂 LOGICAL MODEL  \n􀀂 a non-technical pictorial representation that depicts what a system is or does . Synonyms are essential model, conceptual model and business model  \n􀀂 PHYSICAL MODEL  \n􀀂 a technical pictorial representation that depicts what a system is or does and how the system is implemented. Synonyms are implementation model and technical model.  \n􀀂 PROCESS MODELLING  \n􀀂involves graphically representing the functions, or processes that capture, manipulate, store and distribute data between a system and its environment and among system components  \nData Flow Diagrams (DFD)  \n􀀂 Data flow diagrams (DFD)  \n􀀂 A common and traditional form of process modelling technique  \n􀀂Graphically illustrate movement of data between external entities and the processes and data stores within a system  \n􀀂 DFD’s are not as good as flowcharts to depict details of physical systems  \nDR ABDULLAH ALZAHRANI. AAHZAHRANI@UQU.EDU.SA  \n10","cbCaiiWlWRWGgr8y","https://ap.wps.com/l/cbCaiiWlWRWGgr8y","pdf",937380,37,"English","# Systems Design\n## Systems Design (1)\n## Systems Design (2)\n# Process Modelling\n## Model\n## Logical Model\n## Physical Model\n## Process Modelling\n# Data Flow Diagrams (DFD)","[{\"question\":\"What does systems design mean in this document?\",\"answer\":\"Systems design refers to specifying or constructing a technical, computer-based solution that satisfies business requirements, increasingly in the form of a working prototype.\"},{\"question\":\"What are the three design methods covered?\",\"answer\":\"The document lists Modern Structured Design, Prototyping, and Object-Oriented Design as the core methods.\"},{\"question\":\"How does process modelling relate to data and system components?\",\"answer\":\"Process modelling graphically represents functions and processes that capture, manipulate, store, and distribute data between a system, its environment, and its components.\"}]","System Analysis & Design - PART 6 - Systems Design and Modelling | PDF",1792965249,93]