Computer Science Essay: Final Paper – Information Technology Questions

Final Paper – Information Technology Questions
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December 16, 2020
1 Name and fully explain the 5 phases of the System Development Life Cycle. In your explanation, what happens at the end of each phase, and why is it important? Explain what happens throughout the entire process to ensure success.
The five main phases of the System Development Life Cycle (SDLC) are; (1) planning, (2) creating, (3) developing, (4) testing, and (5) deploying.
First, the planning stage refers to the strategic analysis and creation of the operational plan wherein every stakeholder should be involved. It must include a thorough understanding of each step of the process, including the costs, feasibility, and even the risks and how to reduce them to ensure the project's success.
The second step is the 'creating' process. During this phase, the application's main functions should be designed to determine its main processes. Additionally, these designs must consider the functions and constraints to effectively create the Design document specification (DDS).
The third phase (developing phase) is where the main bulk of the program is created. During this process, the software could either be designed and developed by a single person or through teams' collaboration. This is one of the most essential phases since it is where the software is slowly brought to 'life.'
The fourth phase of the SDLC is the testing phase. During this phase, the software or application is already functional. However, aside from merely testing the software's functionality, testing is also necessary to ensure its profitability among potential consumers by testing it in a localized setting.
Finally, the 'deployment' phase marks when the software is released to the general market. Since the main bulk of the program is created during the early stages, the focus should shift towards automating systems and increasing sales reach.
2 Explain how the speed of storage devices and memory is defined.
The speed of storage devices and memory is primarily defined by its access time. This measure contemplates two time-related processes. On the one hand, this includes the time actually related to the client to read/write the data itself. However, since this process is relatively fast, the actual time for reading/writing data does not contribute too much to the time itself.
On the other hand, it also includes the time needed to locate a specific disk sector, also known as the 'seek time.' This is what contributes most to the overall time required for storage devices to read/write data since it has to consider a variety of factors such as the location of the sector and the volume of data recorded, among others.
3 Explain the evolution of the concept of an Enterprise Resource Planning system.
Enterprise Resources Planning systems or ERPs have evolved from the MRP and MRP II systems. On the one hand, one of its predecessors (MRP) 's primary function is to plan the materials required for the project only. This sole focus on resource planning makes an efficient and effective procurement process, which was also translated into the current ERP system version. On the other hand, the MRP II system was created to expan...