Started model for the assignment system.

src/model/Assessment.java

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+package model;
+
+import java.util.Date;
+
+public class Assessment {
+	protected UserGroup assessors;
+	protected String comment;
+	protected Date assessedDate;
+	
+	public Assessment(UserGroup assessors, String comment, Date assessedDate) {
+		this.assessors = assessors;
+		this.comment = comment;
+		this.assessedDate = assessedDate;
+	}
+	
+	
+}

src/model/Assignment.java

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+package model;
+
+import java.util.ArrayList;
+import java.util.Date;
+
+public class Assignment {
+	protected String name, description;
+	protected Date publishedDate, dueDate;
+	protected ArrayList<Delivery> deliveries;
+	
+	public Assignment(String name, String description, Date publishedDate, Date dueDate){
+		this.name = name;
+		this.description = description;
+		this.publishedDate = publishedDate;
+		this.dueDate = dueDate;
+	}
+}

src/model/AssignmentGroup.java

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+package model;
+
+import java.util.HashSet;
+
+public class AssignmentGroup extends HashSet<Assignment> {
+
+}

src/model/BinaryAssessment.java

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+package model;
+
+import java.util.Date;
+
+public class BinaryAssessment extends Assessment {
+
+	boolean approved;
+	
+	public BinaryAssessment(boolean approved, UserGroup assessors, String comment,
+			Date assessedDate) {
+		super(assessors, comment, assessedDate);
+		approved = approved;
+	}
+
+}

src/model/Course.java

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+package model;
+
+public class Course {
+	protected String name;
+	protected UserGroup owner, students;
+	protected AssignmentGroup assignments;
+	
+	public Course(UserGroup owner, String name){
+		this.owner = owner;
+		this.name = name;
+	}
+}

src/model/CourseGroup.java

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+package model;
+
+import java.util.HashSet;
+
+public class CourseGroup extends HashSet<Course> {
+
+}

src/model/Delivery.java

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+package model;
+
+public class Delivery {
+	protected UserGroup userGroup;
+	protected Assessment assessment;
+	
+	public Delivery(UserGroup userGroup){
+		this.userGroup = userGroup;
+	}
+}

src/model/GradedAssessment.java

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+package model;
+
+import java.util.Date;
+
+public class GradedAssessment extends Assessment {
+
+	public enum Grade {
+		F, E, D, C, B, A;
+		
+		public boolean isFail(){
+			return this==F;
+		}
+	}
+	
+	Grade grade;
+	
+	public GradedAssessment(Grade grade, UserGroup assessors, String comment,
+			Date assessedDate) {
+		super(assessors, comment, assessedDate);
+		grade = grade;
+	}
+}

src/model/ScoreAssessment.java

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+package model;
+
+import java.util.Date;
+
+public class ScoreAssessment extends Assessment {
+
+	double score;
+	
+	public ScoreAssessment(double score, UserGroup assessors, String comment,
+			Date assessedDate) {
+		super(assessors, comment, assessedDate);
+		this.score = score;
+	}
+}

src/model/User.java

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+package model;
+
+public class User {
+	protected String username;
+	
+	public User(String username){
+		this.username = username;
+	}
+}

src/model/UserGroup.java

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+package model;
+
+import java.util.HashSet;
+
+public class UserGroup extends HashSet<User>{
+	
+}

src/model/files/File.java

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+package model.files;
+
+public class File {
+	String name, path, title;
+	FileType type;
+	public File(String name, String path, String title, FileType type) {
+		super();
+		this.name = name;
+		this.path = path;
+		this.title = title;
+		this.type = type;
+	}
+
+	public File(String name, String path, String title) {
+		super();
+		this.name = name;
+		this.path = path;
+		this.title = title;
+		// TODO find type from name
+	}
+	
+}

src/model/files/FileGroup.java

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+package model.files;
+
+import java.util.HashSet;
+
+public class FileGroup extends HashSet<File> {
+
+}

src/model/files/FileType.java

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+package model.files;
+
+public enum FileType {
+	
+}

src/model/files/PublishedFileGroup.java

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+package model.files;
+
+import java.util.Date;
+
+public class PublishedFileGroup extends FileGroup {
+	Date startDate=null, endDate=null;
+	
+	public PublishedFileGroup(Date startDate, Date endDate) {
+		this.startDate = startDate;
+		this.endDate = endDate;
+	}
+	
+	public boolean isPublished(Date date) {
+		return date.after(startDate) && date.before(endDate);
+	}
+	
+}

src/model/ntnu/Course.java

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+package model.ntnu;
+
+import java.util.Date;
+
+import model.UserGroup;
+
+public class Course extends model.Course {
+
+	protected model.UserGroup lecturers, vitasses, undasses, studasses;
+	protected model.UserGroup students;
+	protected Semester semester;
+	protected int year;
+	protected String code;
+	
+	public Course(UserGroup owner, String name, String code, Semester semester, int year) {
+		super(owner, name);
+		this.code = code;
+		this.semester = semester;
+		this.year = year;
+	}
+
+	public Date getStartDate() {
+		// TODO implement
+		return null;
+	}
+
+	public Date getEndDate() {
+		// TODO implement
+		return null;
+	}
+}

src/model/ntnu/Semester.java

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+package model.ntnu;
+
+public enum Semester {
+	SPRING, FALL, SUMMER;
+}