Question:note: any related form of answer would be accepted…

Question:note: any related form of answer would be accepted

Scenario: The Metropolitan Piano Association (MPA) is an organization of piano teachers in the Global Springfield area. Their purpose is to promote the education and performance of piano students of all ages through hosting a variety of live student performances and competitions. These competitions result in awards for the top performers, those who improved the most, etc. The association president Nick Rayapur has been keeping track of everything in Excel, but he knows it is time to build a real database. It will be hosted in the cloud so that member teachers can input information from home and check event schedules. While the cloud service will be responsible for quite a few things, you are tasked with organizing the database.
Your action here is to do some diagramming and organizing of data. Note that the Music entity will be important in the ERD because competitions may rely heavily on the style and difficulty of the music being played.
Part 1: Level 0 DFD
Task: Develop a Level 0 data flow diagram in Gane Sarson style for the MPA database.
Diagram: Using Visio:
Begin with the “Data Flow Model Diagram” Visio template.
Include entities, data flow arrows (with explanations), processes, and data stores.
Teacher, Performer, and Event must be included.
Use only the shapes shown in Figure 1, and model your DFD like the example, Figure 7.6.
Use numbering standards as explained in the Reading PDF.
Part 2: ERD
Task: Develop an entity relationship diagram for the MPA database.
Diagram: Using Visio:
Begin with the “Crow’s Foot Database Notation” Visio template.
Include these five entities:
Student
Teacher
Event
Award
Music — see below for attribute ideas
All reasonable attributes should be included for each entity.
A logical primary key (a unique attribute) must be clearly identified for each entity.
Foreign keys must be included to be able to connect the entities properly.
Crow’s feet must be used to show cardinalities. Crow’s feet are shown in the textbook, Figure 13.3, and the Reading PDF explains how to make these from ordinary arrows/lines.
Example ERDs are found in the Reading PDF.
Use consistent case (Pascal, camel, small case, or underscore).
Also consider:
Each teacher can have many students.
No students have more than one piano teacher.
Each student can play many pieces.
Each student can participate in events, but they do not have to participate.
Not all participants win awards.
Teachers must have some credentials (usually a college degree).
Attributes for the Music entity would include title, composer, publisher, difficulty, etc.
Contact information is crucial for all people involved. Check the Reading PDF regarding addresses.
To add an attribute to an entity, click the attribute shape and drag it onto the stage and right under the entity. It should click into place.
Here are the steps for creating a level 0 data flow diagram for the MPA database:
Open a new Visio document and choose the “Data Flow Model Diagram” template.
In the Shapes pane, select the “External Entity” shape and drag it onto the drawing canvas. Name this shape “Teacher” to represent the individual piano teachers who are members of the MPA.
Repeat step 2 to create additional external entity shapes for “Performer” (to represent the piano students who are performing in events organized by the MPA) and “Event” (to represent the live student performances and competitions organized by the MPA).
From the Shapes pane, select the “Data Store” shape and drag it onto the drawing canvas. Name this shape “MPA Cloud Database” to represent the data store where all the information about the teachers, performers, and events is stored.
From the Shapes pane, select the “Process” shape and drag it onto the drawing canvas. Name this shape “Input Teacher Information” to represent the process of inputting information about a teacher into the MPA cloud database.
Repeat step 5 to create additional process shapes for “Input Performer Information” and “Input Event Information”.
From the Shapes pane, select the “Data Flow” shape and draw arrows from the “Teacher”, “Performer”, and “Event” external entity shapes to the “Input Teacher Information”, “Input Performer Information”, and “Input Event Information” process shapes, respectively. These arrows represent the flow of information from the external entities to the processes.
Repeat step 7 to create additional data flow arrows from the “MPA Cloud Database” data store to the “Input Teacher Information”, “Input Performer Information”, and “Input Event Information” process shapes. These arrows represent the flow of information from the data store to the processes.
From the Shapes pane, select the “Process” shape and drag it onto the drawing canvas. Name this shape “Query Teacher Information” to represent the process of querying the MPA cloud database for information about a specific teacher.
Repeat step 9 to create additional process.

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