Project 1 Short Paper

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School

Southern New Hampshire University *

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255

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Computer Science

Date

Feb 20, 2024

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Uploaded by SargentSnake1088

CS 255 Model Application Short Paper Caio Mauro caio.mauro@snhu.edu Southern New Hampshire University

Process Model Application A process model in computer science is a function broken down and displayed in a visually more appealing manner. Process models provide explanations for functions within a system. They provide information such as what each model does in the system and how they all fit together. Process models are designed to provide an outline for developers to make the development process easier. They provide a good overview of what the application should look like and how it should flow when it is complete. When designing process models there are a couple main goals to keep in mind. It is important to be descriptive, prescriptive, and explanatory when creating them. Typically, there are four classifications of process models which are, coverage, alignment, granularity, and flexibility. A Data Flow Diagram is a main form used to create process models. Other examples such as, UML diagrams, flowcharts also exist and can be useful in certain areas. When designing a DFD, there are some helpful guidelines which make the diagram more effective. If we look at DriverPass's scenario, the way to start the process model is by first breaking down their goal. From the interviews, the client is looking to help students who want to pass their driving exams. They want to provide packages with plans to provide access to certain materials and features to help them pass. They want to pair this with lessons and appointment scheduling to make the experience better. They would like to include features found in regular LMS’s. For example, drivers note, and feedback will be very important, it should include the lesson length, start hour, end hour and driver comments about how everything went. The students, should be able to create an account, purchase one of the three packages, take practice exams, view their progress, and view other resources made

available. The system administrator should be able to manage user accounts and view and update user data. Object Model Application An object model utilizes object-oriented techniques to build a model that represents the classes from within a system. They are a visual representation of how the classes will use functions to interact with each other. An example of an object model would be something like a Document Object Model which connects web pages to scripts. When creating an object model, there are a few things to keep in mind, it must include interfaces, object references, actions, and exceptions. The DriverPass application could benefit from an object model to build all the objects and interactions they would have within the application. We would need to decide the types and uses for each model while keeping OOP in mind. It is important to consider abstraction, encapsulation, modularity, and other principles when designing the model. The object model would help direct the focus to aspects that may be missed like the relationship between different objects. This well help when creating a database schema as well since table relations with SQL will be much easier to configure if it has already been thought-out. Process and Object Model Comparison Process models and object models each have their own strengths. No matter which model you choose for DriverPass will benefits from it. The process model gives us a visual representation of the layers in the system. You get an idea of what the product would look like and what functions you need to make that a reality. The process model would force some DriverPass to consider every action they want to have on the site. Simply saying secure log in is not enough. There would need to be consideration and thought into what the actual process for

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that secure log in would look like. A disadvantage from the process model is that you don’t look at the classes that will use the model. Object models also give a visual representation, unlike the process model, it deals less with what happens in a secure log in and instead what objects are needed to make that happen. Typically, the development process for an object model is faster due to objects being easier to create, this would ultimately be a benefit for DriverPass since it would save them time and money. While using both models would be a good idea for the DriverPass, I think the best model to use for DriverPass, would still be the process model. Even though it may take longer the actual development process will be significantly faster than if they only used an object model. Of course, the best thing to do would be to use both models for the quickest and most accurate and effective development process.

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