A middle school has decided that it would like to make its students' grades available to their parents via an online parent portal. In addition, this system will allow for important announcements to be posted. The school has decided that a system will be developed in-house to complete this project. In doing so, a number of processes need to be identified during the planning of the project.

1. Define the problem and the current need in the given situation.

2. Create a hierarchy chart depicting the chosen situation.

3. Develop a flowchart and provide a brief explanation for it.

4. Develop an algorithm and provide a brief explanation for it.

5. Explain how arrays can be used within your choice.