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Systems Analysis and Design - Essay Example

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The logical model is the interaction between the resources, processes, their input and output which is used by people to automate, modulate, manage and optimize the information systems. While developing a logical model for registration ­­­­­system at school/college level…
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System Design and Analysis The logical model is the interaction between the resources, processes, their input and output which is used by people to automate, modulate, manage and optimize the information systems. While developing a logical model for registration ­­­­­system at school/college level top-down approach is preferred. Resources are easily organized for individual managed application by distributing work load in different steps. First step is having a main control, which resides with the admin department having clear view of demands and statements. Each phase implements a deeper, more mature implementation of the management solution that is moving towards the core objective (David, Robertson and Lipkis). Giving fee forms are taken as underlying objects in the hierarchy followed by level of education (primary/secondary). Students are ultimate next object who choose courses and then submit fee in order to confirm their registration (Mukherjee, Davulen and Ifer). Top down approach is always cost effective because it involves incremental ways; data is added in chunks and is manageable as compare to bottom up where we move from concrete to abstract level. Greater control is present over resources only necessary information is pre-programmed.
Previously, the real estate was managed through Database where all the information related to apartments, terraced houses and duplex units were stored in tables. Database collapsing results into loss of all application programs and more time and cost was required (Govardhan and Munassar). Data was retrieved through complex queries. Now when shifting to object oriented paradigm a new horizon is achieved as it defines methods through characteristics; like names, properties and behavior. Traditional structure used procedures whereas, object oriented uses mythology based on object named as programming language objects. A well-defined control flow is maintained as the work is distributed in classes which can be reused and encapsulated.
Works Cited
David, S. H. Rosenthal, Thomas Robertson and Tom Lipkis. "Requirements for Digital Preservation Systems." (2005).
Govardhan, Dr. A. and Nabil Mohammad Ali Munassar. "Comparison between Traditional Approach and Obect Oriented Approch in Software Engineering." (2011).
Mukherjee, Saikar, et al. "Logic-Based Approaches to Workflow Modelling and Verification." (n.d.). Read More
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