diff --git a/src/bigGrades.ts b/src/bigGrades.ts
new file mode 100644
index 0000000..d91a3b5
--- /dev/null
+++ b/src/bigGrades.ts
@@ -0,0 +1,56 @@
+import rawData from "https://didier-ahuntsic.gitlab.io/cours-420-317-ah/data/grades.json" assert {type: "json"};
+
+
+type Grade = {
+    studentId: number,
+    examId: number,
+    grade: number
+};
+
+type Student = {name: string, studentId: number};
+
+type Exam = {
+    examId: number,
+    maxGrade: number,
+    weight: number,
+    name: string,
+};
+
+type RawData = {
+    exams: Exam[],
+    grades: Grade[]
+    students: Student[]};
+
+type Mark = {
+    grade: number,
+    maxGrade: number,
+    weight: number
+};
+
+type StudentReportCard = {
+    studentId: number,
+    studentName: string,
+    marks: Mark[]
+};
+
+function computeFinalGrade(reportCard: StudentReportCard): number{
+    let finalGrade = 0;
+    for(let mark of reportCard.marks){
+        finalGrade += (mark.grade / mark.maxGrade) * mark.weight / 100
+    }
+    return finalGrade;
+}
+
+function transformData(rawData: RawData): StudentReportCard[]{
+
+}
+
+
+
+function main(_rawData: RawData): void{
+
+
+}
+
+
+