diff --git a/src/renderer/src/models/Assessment.ts b/src/renderer/src/models/Assessment.ts
new file mode 100644
index 0000000..b4bd976
--- /dev/null
+++ b/src/renderer/src/models/Assessment.ts
@@ -0,0 +1,115 @@
+/*
+ *
+ * Copyright (c) 2025. Jeffery Hsu - Achievement Report Generator
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+import { IAssessment, IAssessmentMethod } from '@renderer/types'
+
+export class AssessmentData implements IAssessment {
+  private readonly _method: IAssessmentMethod[]
+  private _stage: string
+  private _weight: number
+
+  constructor(stage: string, weight: number | string, method?: IAssessmentMethod[]) {
+    this._method = method ?? []
+    this._stage = stage
+    this._weight = Number(weight)
+  }
+
+  get method(): IAssessmentMethod[] {
+    return this._method
+  }
+
+  get stage(): string {
+    return this._stage
+  }
+
+  set stage(value: string) {
+    this._stage = value
+  }
+
+  get weight(): number {
+    return this._weight
+  }
+
+  set weight(value: number | string) {
+    this._weight = Number(value)
+  }
+
+  public addMethod(method: IAssessmentMethod) {
+    this._method.push({ ...method, weight: Number(method.weight) })
+  }
+
+  public modifyMethod(method: IAssessmentMethod, idx: number) {
+    if (idx < 0 || idx >= this._method.length) {
+      return
+    }
+    this._method[idx] = { ...method, weight: Number(method.weight) }
+  }
+
+  public removeMethod(idx: number) {
+    this.method.splice(idx, 1)
+  }
+
+  public static factory() {
+    return new AssessmentData('', 0, [])
+  }
+}
+
+export class Assessment {
+  private _daily: AssessmentData
+  private _progress: AssessmentData
+  private _final: AssessmentData
+
+  constructor(daily: AssessmentData, progress: AssessmentData, final: AssessmentData) {
+    this._daily = daily
+    this._progress = progress
+    this._final = final
+  }
+
+  public static factory() {
+    return new Assessment(
+      AssessmentData.factory(),
+      AssessmentData.factory(),
+      AssessmentData.factory()
+    )
+  }
+
+  get daily(): AssessmentData {
+    return this._daily
+  }
+
+  set daily(value: AssessmentData) {
+    this._daily = value
+  }
+
+  get progress(): AssessmentData {
+    return this._progress
+  }
+
+  set progress(value: AssessmentData) {
+    this._progress = value
+  }
+
+  get final(): AssessmentData {
+    return this._final
+  }
+
+  set final(value: AssessmentData) {
+    this._final = value
+  }
+}
diff --git a/src/renderer/src/models/Course.ts b/src/renderer/src/models/Course.ts
new file mode 100644
index 0000000..f3cb72f
--- /dev/null
+++ b/src/renderer/src/models/Course.ts
@@ -0,0 +1,107 @@
+/*
+ *
+ * Copyright (c) 2025. Jeffery Hsu - Achievement Report Generator
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+import { ICourse } from '@renderer/types'
+
+export class Course implements ICourse {
+  private _campus: string
+  private _className: string
+  private _credit: number
+  private _id: string
+  private _master: string
+  private _name: string
+  private _teacher: string
+
+  constructor(
+    campus: string,
+    className: string,
+    credit: number | string,
+    id: string,
+    master: string,
+    name: string,
+    teacher: string
+  ) {
+    this._campus = campus
+    this._className = className
+    this._credit = Number(credit)
+    this._id = id
+    this._master = master
+    this._name = name
+    this._teacher = teacher
+  }
+
+  public static factory() {
+    return new Course('', '', 0, '', '', '', '')
+  }
+
+  set campus(value: string) {
+    this._campus = value
+  }
+
+  set className(value: string) {
+    this._className = value
+  }
+
+  set credit(value: number | string) {
+    this._credit = Number(value)
+  }
+
+  set id(value: string) {
+    this._id = value
+  }
+
+  set master(value: string) {
+    this._master = value
+  }
+
+  set name(value: string) {
+    this._name = value
+  }
+
+  set teacher(value: string) {
+    this._teacher = value
+  }
+  get campus(): string {
+    return this._campus
+  }
+
+  get className(): string {
+    return this._className
+  }
+
+  get credit(): number {
+    return this._credit
+  }
+
+  get id(): string {
+    return this._id
+  }
+
+  get master(): string {
+    return this._master
+  }
+
+  get name(): string {
+    return this._name
+  }
+
+  get teacher(): string {
+    return this._teacher
+  }
+}
diff --git a/src/renderer/src/models/ReportDocument.ts b/src/renderer/src/models/ReportDocument.ts
new file mode 100644
index 0000000..2c26db6
--- /dev/null
+++ b/src/renderer/src/models/ReportDocument.ts
@@ -0,0 +1,62 @@
+/*
+ *
+ * Copyright (c) 2025. Jeffery Hsu - Achievement Report Generator
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+import { Course } from '@renderer/models/Course'
+import { Assessment } from '@renderer/models/Assessment'
+import { Student } from '@renderer/models/Student'
+
+export class ReportDocument {
+  private _course: Course
+  private _assessment: Assessment
+  private _students: Student[]
+
+  constructor(course: Course, assessment: Assessment, students: Student[]) {
+    this._course = course
+    this._assessment = assessment
+    this._students = students
+  }
+
+  public static factory() {
+    return new ReportDocument(Course.factory(), Assessment.factory(), [])
+  }
+
+  get course(): Course {
+    return this._course
+  }
+
+  set course(value: Course) {
+    this._course = value
+  }
+
+  get assessment(): Assessment {
+    return this._assessment
+  }
+
+  set assessment(value: Assessment) {
+    this._assessment = value
+  }
+
+  get students(): Student[] {
+    return this._students
+  }
+
+  set students(value: Student[]) {
+    this._students = value
+  }
+}
diff --git a/src/renderer/src/models/Student.ts b/src/renderer/src/models/Student.ts
new file mode 100644
index 0000000..188d725
--- /dev/null
+++ b/src/renderer/src/models/Student.ts
@@ -0,0 +1,86 @@
+/*
+ *
+ * Copyright (c) 2025. Jeffery Hsu - Achievement Report Generator
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+import { IStudent } from '@renderer/types'
+
+export class Student implements IStudent {
+  private _className: string
+  private _major: string
+  private _name: string
+  private _resitTag: boolean
+  private _serialNumber: string
+
+  constructor(
+    className: string,
+    major: string,
+    name: string,
+    resitTag: boolean,
+    serialNumber: string
+  ) {
+    this._className = className
+    this._major = major
+    this._name = name
+    this._resitTag = resitTag
+    this._serialNumber = serialNumber
+  }
+
+  public static factory() {
+    return new Student('', '', '', false, '')
+  }
+
+  get className(): string {
+    return this._className
+  }
+
+  set className(value: string) {
+    this._className = value
+  }
+
+  get major(): string {
+    return this._major
+  }
+
+  set major(value: string) {
+    this._major = value
+  }
+
+  get name(): string {
+    return this._name
+  }
+
+  set name(value: string) {
+    this._name = value
+  }
+
+  get resitTag(): boolean {
+    return this._resitTag
+  }
+
+  set resitTag(value: boolean) {
+    this._resitTag = value
+  }
+
+  get serialNumber(): string {
+    return this._serialNumber
+  }
+
+  set serialNumber(value: string) {
+    this._serialNumber = value
+  }
+}
diff --git a/src/renderer/src/types/share.ts b/src/renderer/src/types/share.ts
new file mode 100644
index 0000000..4b7ee8d
--- /dev/null
+++ b/src/renderer/src/types/share.ts
@@ -0,0 +1,20 @@
+/*
+ *
+ * Copyright (c) 2025. Jeffery Hsu - Achievement Report Generator
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+export type Operation = 'save' | 'cancel' | 'modify'