class diagram and sequence diagram

User Story

Registration Staff must be able to create classes as needed by the business. For example, the owners of Pro TKD are thinking about expanding into the Parkour marketplace and will have to create classes for different age ranges and skill levels.

Acceptance Criteria:

1. Must be able to query classes by age range and skill levels
2. Must be able to schedule the classes is 0.5 increments.

Use Case Descriptions

Use Case Name	Create a class
Triggering Event	Demand for a new class
Brief Description	Allows the Registration Staff to create a new class
Actors	Registration Staff
Related Use Cases
Preconditions	Registration Staff has opened the class and schedule menu
Post Conditions	Class is created and ready to schedule
Flow of activities	Actor		System
		Selects the Class Menu	Displays a list of classes including Class identifier, class name and the date the class was last run. System prompts to add a class
		Requests to add a class	Displays a class entry form, prompting for class name, class description, length of class in 0.5 hour increments, suggested age range and skill level.
		Enters class name, class description, length of class, selects age range, from a list and skill level from a list	Accepts input Data Validation: Class name must be entered Description must be entered Length of class must be entered and divisible by 30. Age range must be selected Skill level must be selected Data is valid, unique class identifier is created Prompts to save the data.
		Requests to save	Saves data Displays a confirmation message
Exception Conditions	Actor chooses to cancel adding the class

Use Case Name	Add a class to a schedule
Triggering Event	Demand for a class
Brief Description	Allows the Registration Staff to add a class to the weekly schedule.
Actors	Registration Staff
Related Use Cases
Preconditions	Registration Staff has opened the class and schedule menu
Post Conditions	Class is scheduled and ready for Registration
Flow of activities	Actor		System
	1.	Selects the Semester Schedule option	Displays a list of Semester/locations, prompts for selection
	2.	Selects semester and location	Displays a weekly calendar for the semester/location, displaying classes currently scheduled. Displays a list of classes.
	3.	Selects class, day of week and start time to add to schedule	Displays a weekly calendar for the semester/location, displaying classes currently scheduled. Displays a list of classes.
	4.	Repeat above step until all classes have been added to the schedule Requests to save	Scheduled items are save.
Exception Conditions	Registration Staff choose to cancel scheduling classes