diff --git a/src/enums/RecordValueType.ts b/src/enums/RecordValueType.ts
new file mode 100644
index 0000000..0f6ef19
--- /dev/null
+++ b/src/enums/RecordValueType.ts
@@ -0,0 +1,75 @@
+/**
+ * @enum RecordValueType - The type of the record value.
+ */
+export enum RecordValueType {
+  /**
+   * @constant String - The record value is a string.
+   * @type {string}
+   */
+  String = 'String',
+
+  /**
+   * @constant Integer - The record value is an integer.
+   * @type {string}
+   */
+  Integer = 'Integer',
+
+  /**
+   * @constant Decimal - The record value is a decimal.
+   * @type {string}
+   */
+  Decimal = 'Decimal',
+
+  /**
+   * @constant Date - The record value is a Date.
+   * @type {string}
+   */
+  Date = 'Date',
+
+  /**
+   * @constant TimeSpan - The record value is a TimeSpan.
+   * @type {string}
+   */
+  TimeSpan = 'TimeSpan',
+
+  /**
+   * @constant Guid - The record value is a Guid.
+   */
+  Guid = 'Guid',
+
+  /**
+   * @constant StringList - The record value is a list of strings.
+   * @type {string}
+   */
+  StringList = 'StringList',
+
+  /**
+   * @constant IntegerList - The record value is a list of integers.
+   * @type {string}
+   */
+  IntegerList = 'IntegerList',
+
+  /**
+   * @constant GuidList - The record value is a list of Guids.
+   * @type {string}
+   */
+  GuidList = 'GuidList',
+
+  /**
+   * @constant AttachmentList - The record value is a list of attachments.
+   * @type {string}
+   */
+  AttachmentList = 'AttachmentList',
+
+  /**
+   * @constant ScoringGroupList - The record value is a list of scoring groups.
+   * @type {string}
+   */
+  ScoringGroupList = 'ScoringGroupList',
+
+  /**
+   * @constant FileList - The record value is a list of files.
+   * @type {string}
+   */
+  FileList = 'FileList',
+}
diff --git a/src/enums/ResultValueType.ts b/src/enums/ResultValueType.ts
deleted file mode 100644
index 5361dd3..0000000
--- a/src/enums/ResultValueType.ts
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * @enum ResultValueType - The type of the result value.
- */
-export enum ResultValueType {
-  /**
-   * @constant String - The result value is a string.
-   * @type {string}
-   */
-  String = 'String',
-
-  /**
-   * @constant Integer - The result value is an integer.
-   * @type {string}
-   */
-  Integer = 'Integer',
-
-  /**
-   * @constant Decimal - The result value is a decimal.
-   * @type {string}
-   */
-  Decimal = 'Decimal',
-
-  /**
-   * @constant Date - The result value is a Date.
-   * @type {string}
-   */
-  Date = 'Date',
-
-  /**
-   * @constant TimeSpan - The result value is a TimeSpan.
-   * @type {string}
-   */
-  TimeSpan = 'TimeSpan',
-
-  /**
-   * @constant Guid - The result value is a Guid.
-   */
-  Guid = 'Guid',
-
-  /**
-   * @constant StringList - The result value is a list of strings.
-   * @type {string}
-   */
-  StringList = 'StringList',
-
-  /**
-   * @constant IntegerList - The result value is a list of integers.
-   * @type {string}
-   */
-  IntegerList = 'IntegerList',
-
-  /**
-   * @constant GuidList - The result value is a list of Guids.
-   * @type {string}
-   */
-  GuidList = 'GuidList',
-
-  /**
-   * @constant AttachmentList - The result value is a list of attachments.
-   * @type {string}
-   */
-  AttachmentList = 'AttachmentList',
-
-  /**
-   * @constant ScoringGroupList - The result value is a list of scoring groups.
-   * @type {string}
-   */
-  ScoringGroupList = 'ScoringGroupList',
-
-  /**
-   * @constant FileList - The result value is a list of files.
-   * @type {string}
-   */
-  FileList = 'FileList',
-}
diff --git a/src/models/ApiResponse.ts b/src/models/ApiResponse.ts
index 0aa6ded..ecdbb2b 100644
--- a/src/models/ApiResponse.ts
+++ b/src/models/ApiResponse.ts
@@ -1,5 +1,8 @@
 import { type AxiosResponse } from 'axios';
+import { FieldStatus } from '../enums/FieldStatus';
 import { FieldType } from '../enums/FieldType';
+import { FormulaOutputType } from '../enums/FormulaOutputType';
+import { Multiplicity } from '../enums/Multiplicity';
 import { App } from './App';
 import { CollectionResponse } from './CollectionResponse';
 import { CreatedWithIdResponse } from './CreatedWithIdResponse';
@@ -327,48 +330,55 @@ export class ApiResponse<T> {
    * @returns {Field} - The converted field object.
    */
   private static getFieldByType(fieldItem: any): Field {
-    switch (fieldItem.type) {
+    const type = FieldType[fieldItem.type];
+    const status = FieldStatus[fieldItem.status];
+
+    switch (type) {
       case FieldType.Reference: {
+        const multiplicity = Multiplicity[fieldItem.multiplicity];
+
         return new ReferenceField(
           fieldItem.id,
           fieldItem.appId,
           fieldItem.name,
-          fieldItem.type,
-          fieldItem.status,
+          type,
+          status,
           fieldItem.isRequired,
           fieldItem.isUnique,
-          fieldItem.multiplicity,
+          multiplicity,
           fieldItem.referencedAppId
         );
       }
       case FieldType.List: {
         const values = ApiResponse.getListValues(fieldItem);
+        const multiplicity = Multiplicity[fieldItem.multiplicity];
 
         return new ListField(
           fieldItem.id,
           fieldItem.appId,
           fieldItem.name,
-          fieldItem.type,
-          fieldItem.status,
+          type,
+          status,
           fieldItem.isRequired,
           fieldItem.isUnique,
-          fieldItem.multiplicity,
+          multiplicity,
           fieldItem.listId,
           values
         );
       }
       case FieldType.Formula: {
         const values = ApiResponse.getListValues(fieldItem);
+        const outputType = FormulaOutputType[fieldItem.outputType];
 
         return new FormulaField(
           fieldItem.id,
           fieldItem.appId,
           fieldItem.name,
-          fieldItem.type,
-          fieldItem.status,
+          type,
+          status,
           fieldItem.isRequired,
           fieldItem.isUnique,
-          fieldItem.outputType,
+          outputType,
           values
         );
       }
@@ -377,8 +387,8 @@ export class ApiResponse<T> {
           fieldItem.id,
           fieldItem.appId,
           fieldItem.name,
-          fieldItem.type,
-          fieldItem.status,
+          type,
+          status,
           fieldItem.isRequired,
           fieldItem.isUnique
         );
diff --git a/src/models/App.ts b/src/models/App.ts
index 90e05cb..ca8ff98 100644
--- a/src/models/App.ts
+++ b/src/models/App.ts
@@ -5,17 +5,17 @@ export class App {
   /**
    * @property {string} href - The URL to the app
    */
-  href: string;
+  public href: string;
 
   /**
    * @property {number} id - The id of the app
    */
-  id: number;
+  public id: number;
 
   /**
    * @property {string} name - The name of the app
    */
-  name: string;
+  public name: string;
 
   /**
    * @constructor - Creates a new instance of the App class.
diff --git a/src/models/Attachment.ts b/src/models/Attachment.ts
new file mode 100644
index 0000000..a84ad34
--- /dev/null
+++ b/src/models/Attachment.ts
@@ -0,0 +1,18 @@
+export class Attachment {
+  public fileId: number;
+  public fileName: string;
+  public notes: string;
+  public storageLocation: string;
+
+  constructor(
+    fileId: number,
+    fileName: string,
+    notes: string,
+    storageLocation: string
+  ) {
+    this.fileId = fileId;
+    this.fileName = fileName;
+    this.notes = notes;
+    this.storageLocation = storageLocation;
+  }
+}
diff --git a/src/models/Field.ts b/src/models/Field.ts
index fc57bf3..51afe04 100644
--- a/src/models/Field.ts
+++ b/src/models/Field.ts
@@ -1,5 +1,5 @@
-import { FieldStatus } from '../enums/FieldStatus';
-import { FieldType } from '../enums/FieldType';
+import { type FieldStatus } from '../enums/FieldStatus';
+import { type FieldType } from '../enums/FieldType';
 
 /**
  * @class Field - Represents a Field.
@@ -45,36 +45,26 @@ export class Field {
    * @param {number} id - The id of the Field.
    * @param {number} appId - The id of the App that the Field belongs to.
    * @param {string} name - The name of the Field.
-   * @param {string} type - The type of the Field.
-   * @param {string} status - The status of the Field.
+   * @param {FieldType} type - The type of the Field.
+   * @param {FieldStatus} status - The status of the Field.
    * @param {boolean} isRequired - Indicates whether or not the Field is required.
    * @param {boolean} isUnique - Indicates whether or not the Field is required to be unique.
    * @returns {Field} - A new Field.
-   * @throws {Error} - Throws an error if the type is not valid.
-   * @throws {Error} - Throws an error if the status is not valid.
    */
   public constructor(
     id: number,
     appId: number,
     name: string,
-    type: string,
-    status: string,
+    type: FieldType,
+    status: FieldStatus,
     isRequired: boolean,
     isUnique: boolean
   ) {
-    if (FieldType[type] === undefined) {
-      throw new Error(`The type '${type}' is not a valid FieldType.`);
-    }
-
-    if (FieldStatus[status] === undefined) {
-      throw new Error(`The status '${status}' is not a valid FieldStatus.`);
-    }
-
     this.id = id;
     this.appId = appId;
     this.name = name;
-    this.type = FieldType[type];
-    this.status = FieldStatus[status];
+    this.type = type;
+    this.status = status;
     this.isRequired = isRequired;
     this.isUnique = isUnique;
   }
diff --git a/src/models/FormulaField.ts b/src/models/FormulaField.ts
index 8865171..442adc6 100644
--- a/src/models/FormulaField.ts
+++ b/src/models/FormulaField.ts
@@ -1,4 +1,6 @@
-import { FormulaOutputType } from '../enums/FormulaOutputType';
+import { type FieldStatus } from '../enums/FieldStatus';
+import { type FieldType } from '../enums/FieldType';
+import { type FormulaOutputType } from '../enums/FormulaOutputType';
 import { Field } from './Field';
 import { type ListValue } from './ListValue';
 
@@ -21,35 +23,27 @@ export class FormulaField extends Field {
    * @param {number} id - The id of the formula field.
    * @param {number} appId - The id of the app the formula field belongs to.
    * @param {string} name - The name of the formula field.
-   * @param {string} type - The type of the formula field.
-   * @param {string} status - The status of the formula field.
+   * @param {FieldType} type - The type of the formula field.
+   * @param {FieldStatus} status - The status of the formula field.
    * @param {boolean} isRequired - Whether the formula field is required.
    * @param {boolean} isUnique - Whether the formula field is unique.
-   * @param {string} outputType - The output type of the formula field.
+   * @param {FormulaOutputType} outputType - The output type of the formula field.
    * @param {ListValue[]} values - The list values of the formula field.
    * @returns {FormulaField} - A new FormulaField.
-   * @throws {Error} - Throws an error if the outputType is not a valid FormulaOutputType.
    */
   constructor(
     id: number,
     appId: number,
     name: string,
-    type: string,
-    status: string,
+    type: FieldType,
+    status: FieldStatus,
     isRequired: boolean,
     isUnique: boolean,
-    outputType: string,
+    outputType: FormulaOutputType,
     values: ListValue[]
   ) {
     super(id, appId, name, type, status, isRequired, isUnique);
-
-    if (FormulaOutputType[outputType] === undefined) {
-      throw new Error(
-        `The outputType ${outputType} is not a valid FormulaOutputType.`
-      );
-    }
-
-    this.outputType = FormulaOutputType[outputType];
+    this.outputType = outputType;
     this.values = values;
   }
 }
diff --git a/src/models/ListField.ts b/src/models/ListField.ts
index e4c280b..5e92cdc 100644
--- a/src/models/ListField.ts
+++ b/src/models/ListField.ts
@@ -1,4 +1,6 @@
-import { Multiplicity } from '../enums/Multiplicity';
+import { type FieldStatus } from '../enums/FieldStatus';
+import { type FieldType } from '../enums/FieldType';
+import { type Multiplicity } from '../enums/Multiplicity';
 import { Field } from './Field';
 import { type ListValue } from './ListValue';
 
@@ -26,37 +28,29 @@ export class ListField extends Field {
    * @param {number} id - The id of the list field.
    * @param {number} appId - The id of the app the list field belongs to.
    * @param {string} name - The name of the list field.
-   * @param {string} type - The type of the list field.
-   * @param {string} status - The status of the list field.
+   * @param {FieldType} type - The type of the list field.
+   * @param {FieldStatus} status - The status of the list field.
    * @param {boolean} isRequired - Whether the list field is required.
    * @param {boolean} isUnique - Whether the list field is unique.
-   * @param {string} multiplicity - The multiplicity of the list field.
+   * @param {Multiplicity} multiplicity - The multiplicity of the list field.
    * @param {number} listId - The id of the list the list field belongs to.
    * @param {ListValue[]} values - The list values of the list field.
    * @returns {ListField} - A new ListField.
-   * @throws {Error} - Throws an error if the multiplicity is not a valid Multiplicity.
    */
   constructor(
     id: number,
     appId: number,
     name: string,
-    type: string,
-    status: string,
+    type: FieldType,
+    status: FieldStatus,
     isRequired: boolean,
     isUnique: boolean,
-    multiplicity: string,
+    multiplicity: Multiplicity,
     listId: number,
     values: ListValue[]
   ) {
     super(id, appId, name, type, status, isRequired, isUnique);
-
-    if (Multiplicity[multiplicity] === undefined) {
-      throw new Error(
-        `The multiplicity ${multiplicity} is not a valid Multiplicity.`
-      );
-    }
-
-    this.multiplicity = Multiplicity[multiplicity];
+    this.multiplicity = multiplicity;
     this.listId = listId;
     this.values = values;
   }
diff --git a/src/models/ListValue.ts b/src/models/ListValue.ts
index 9fc8442..29032a3 100644
--- a/src/models/ListValue.ts
+++ b/src/models/ListValue.ts
@@ -23,7 +23,7 @@ export class ListValue {
   public numericValue: number;
 
   /**
-   *
+   * @property {string} color - The color of the list value.
    */
   public color: string;
 
diff --git a/src/models/PagingRequest.ts b/src/models/PagingRequest.ts
index ed44410..532a0c5 100644
--- a/src/models/PagingRequest.ts
+++ b/src/models/PagingRequest.ts
@@ -7,12 +7,12 @@ export class PagingRequest {
   /**
    * @property {number} pageNumber - The page number of the request.
    */
-  pageNumber: number;
+  public pageNumber: number;
 
   /**
    * @property {number} pageSize - The page size of the request.
    */
-  pageSize: number;
+  public pageSize: number;
 
   /**
    * @constructor - Creates a new instance of the PagingRequest class.
diff --git a/src/models/Record.ts b/src/models/Record.ts
new file mode 100644
index 0000000..a92b2bc
--- /dev/null
+++ b/src/models/Record.ts
@@ -0,0 +1,38 @@
+import { type RecordValue } from './RecordValue';
+
+/**
+ * @class Record - A record in an app.
+ */
+export class Record {
+  /**
+   * @property {number} appId - The id of the app that the record belongs to.
+   */
+  public appId: number;
+
+  /**
+   * @property {number} recordId - The id of the record.
+   */
+  public recordId: number;
+
+  /**
+   * @property {Array<RecordValue<any>>} fieldData - The data for the fields in the record.
+   */
+  public fieldData: Array<RecordValue<any>>;
+
+  /**
+   * @constructor - Creates a new instance of Record.
+   * @param {number} appId - The id of the app that the record belongs to.
+   * @param {number} recordId - The id of the record.
+   * @param {Array<RecordValue<any>>} fieldData - The data for the fields in the record.
+   * @returns {Record} - A new instance of Record.
+   */
+  constructor(
+    appId: number,
+    recordId: number,
+    fieldData: Array<RecordValue<any>>
+  ) {
+    this.appId = appId;
+    this.recordId = recordId;
+    this.fieldData = fieldData;
+  }
+}
diff --git a/src/models/RecordValue.ts b/src/models/RecordValue.ts
new file mode 100644
index 0000000..27ee5ee
--- /dev/null
+++ b/src/models/RecordValue.ts
@@ -0,0 +1,34 @@
+import { type RecordValueType } from '../enums/RecordValueType';
+
+/**
+ * @class RecordValue - A value for a field in a record.
+ */
+export class RecordValue<T> {
+  /**
+   * @property {RecordValueType} type - The type of the record value.
+   */
+  public type: RecordValueType;
+
+  /**
+   * @property {number} fieldId - The id of the field.
+   */
+  public fieldId: number;
+
+  /**
+   * @property {T} value - The value of the field.
+   */
+  public value: T;
+
+  /**
+   * @constructor - Creates a new instance of RecordValue.
+   * @param {RecordValueType} type - The type of the record value.
+   * @param {number} fieldId - The id of the field.
+   * @param {T} value - The value of the field.
+   * @returns {RecordValue} - A new instance of RecordValue.
+   */
+  constructor(type: RecordValueType, fieldId: number, value: T) {
+    this.type = type;
+    this.fieldId = fieldId;
+    this.value = value;
+  }
+}
diff --git a/src/models/ReferenceField.ts b/src/models/ReferenceField.ts
index e1646dc..bc92985 100644
--- a/src/models/ReferenceField.ts
+++ b/src/models/ReferenceField.ts
@@ -1,4 +1,6 @@
-import { Multiplicity } from '../enums/Multiplicity';
+import { type FieldStatus } from '../enums/FieldStatus';
+import { type FieldType } from '../enums/FieldType';
+import { type Multiplicity } from '../enums/Multiplicity';
 import { Field } from './Field';
 
 /**
@@ -20,35 +22,27 @@ export class ReferenceField extends Field {
    * @param {number} id - The id of the reference field.
    * @param {number} appId - The id of the app the reference field belongs to.
    * @param {string} name - The name of the reference field.
-   * @param {string} type - The type of the reference field.
-   * @param {string} status - The status of the reference field.
+   * @param {FieldType} type - The type of the reference field.
+   * @param {FieldStatus} status - The status of the reference field.
    * @param {boolean} isRequired - Whether the reference field is required.
    * @param {boolean} isUnique - Whether the reference field is unique.
-   * @param {string} multiplicity - The multiplicity of the reference field.
+   * @param {Multiplicity} multiplicity - The multiplicity of the reference field.
    * @param {number} referencedAppId - The id of the app the reference field references.
    * @returns {ReferenceField} - A new ReferenceField.
-   * @throws {Error} - Throws an error if the multiplicity is not a valid Multiplicity.jjkdleroritlasaxmvjd
    */
   constructor(
     id: number,
     appId: number,
     name: string,
-    type: string,
-    status: string,
+    type: FieldType,
+    status: FieldStatus,
     isRequired: boolean,
     isUnique: boolean,
-    multiplicity: string,
+    multiplicity: Multiplicity,
     referencedAppId: number
   ) {
     super(id, appId, name, type, status, isRequired, isUnique);
-
-    if (Multiplicity[multiplicity] === undefined) {
-      throw new Error(
-        `The multiplicity ${multiplicity} is not a valid Multiplicity.`
-      );
-    }
-
-    this.multiplicity = Multiplicity[multiplicity];
+    this.multiplicity = multiplicity;
     this.referencedAppId = referencedAppId;
   }
 }
diff --git a/src/models/Row.ts b/src/models/Row.ts
index 80c9c08..dd5e5ef 100644
--- a/src/models/Row.ts
+++ b/src/models/Row.ts
@@ -1,8 +1,24 @@
+/**
+ * @class Row - Represents a row of data in a report.
+ */
 export class Row {
+  /**
+   * @property {number} recordId - The id of the record that the row represents.
+   */
   public recordId: number;
-  public cells: object[];
 
-  constructor(recordId: number, cells: object[]) {
+  /**
+   * @property {any[]} cells - The cells in the row.
+   */
+  public cells: any[];
+
+  /**
+   * @constructor - Creates a new instance of Row.
+   * @param {number} recordId - The id of the record that the row represents.
+   * @param {any[]} cells - The cells in the row.
+   * @returns {Row} - A new instance of Row.
+   */
+  constructor(recordId: number, cells: any[]) {
     this.recordId = recordId;
     this.cells = cells;
   }
diff --git a/src/models/ScoringGroup.ts b/src/models/ScoringGroup.ts
new file mode 100644
index 0000000..37ad515
--- /dev/null
+++ b/src/models/ScoringGroup.ts
@@ -0,0 +1,44 @@
+/**
+ * @class ScoringGroup - A class that represents a scoring group.
+ */
+export class ScoringGroup {
+  /**
+   * @property {string} listValueId - The id of the list value.
+   */
+  public listValueId: string;
+
+  /**
+   * @property {string} name - The name of the scoring group.
+   */
+  public name: string;
+
+  /**
+   * @property {number} score - The score of the scoring group.
+   */
+  public score: number;
+
+  /**
+   * @property {number} maximumScore - The maximum score of the scoring group.
+   */
+  public maximumScore: number;
+
+  /**
+   * @constructor - Creates a new instance of ScoringGroup.
+   * @param {string} listValueId - The id of the list value.
+   * @param {string} name - The name of the scoring group.
+   * @param {number} score - The score of the scoring group.
+   * @param {number} maximumScore - The maximum score of the scoring group.
+   * @returns {ScoringGroup} - A new instance of ScoringGroup.
+   */
+  constructor(
+    listValueId: string,
+    name: string,
+    score: number,
+    maximumScore: number
+  ) {
+    this.listValueId = listValueId;
+    this.name = name;
+    this.score = score;
+    this.maximumScore = maximumScore;
+  }
+}
diff --git a/src/models/TimeSpanData.ts b/src/models/TimeSpanData.ts
new file mode 100644
index 0000000..327fc9d
--- /dev/null
+++ b/src/models/TimeSpanData.ts
@@ -0,0 +1,49 @@
+import { type TimeSpanIncrement } from '../enums/TimeSpanIncrement';
+import { type TimeSpanRecurrenceType } from '../enums/TimeSpanRecurrenceType';
+
+export class TimeSpanData {
+  /**
+   * @property {number} quantity - The quantity of the time span.
+   */
+  public quantity: number;
+
+  /**
+   * @property {TimeSpanIncrement} increment - The increment of the time span.
+   */
+  public increment: TimeSpanIncrement;
+
+  /**
+   * @property {TimeSpanRecurrence} recurrence - The recurrence of the time span.
+   */
+  public recurrence: TimeSpanRecurrenceType;
+
+  /**
+   * @property {number} endAfterOccurrences - The number of occurrences of the time span.
+   */
+  public endAfterOccurrences: number;
+
+  public endByDate: Date;
+
+  /**
+   * @constructor - Creates a new instance of TimeSpanData.
+   * @param {number} quantity - The quantity of the time span.
+   * @param {TimeSpanIncrement} increment - The increment of the time span.
+   * @param {TimeSpanRecurrenceType} recurrence - The recurrence of the time span.
+   * @param {number} endAfterOccurrences - The number of occurrences of the time span.
+   * @param {Date} endByDate - The end date of the time span.
+   * @returns {TimeSpanData} - A new instance of TimeSpanData.
+   */
+  constructor(
+    quantity: number,
+    increment: TimeSpanIncrement,
+    recurrence: TimeSpanRecurrenceType,
+    endAfterOccurrences: number,
+    endByDate: Date
+  ) {
+    this.quantity = quantity;
+    this.increment = increment;
+    this.recurrence = recurrence;
+    this.endAfterOccurrences = endAfterOccurrences;
+    this.endByDate = endByDate;
+  }
+}
diff --git a/tests/Attachment.spec.ts b/tests/Attachment.spec.ts
new file mode 100644
index 0000000..205a616
--- /dev/null
+++ b/tests/Attachment.spec.ts
@@ -0,0 +1,6 @@
+import { Attachment } from '../src/models/Attachment';
+import { expect } from 'chai';
+
+describe('Attachment', function () {
+  throw new Error('Not implemented');
+});
diff --git a/tests/Field.spec.ts b/tests/Field.spec.ts
index b45c110..9dbd5e0 100644
--- a/tests/Field.spec.ts
+++ b/tests/Field.spec.ts
@@ -1,4 +1,6 @@
 import { expect } from 'chai';
+import { FieldStatus } from '../src/enums/FieldStatus';
+import { FieldType } from '../src/enums/FieldType';
 import { Field } from '../src/models/Field';
 
 describe('Field', function () {
@@ -16,38 +18,36 @@ describe('Field', function () {
 
   it('should create a new instance of the Field class', function () {
     expect(
-      () => new Field(1, 1, 'Text Field', 'Text', 'Enabled', true, false)
+      () =>
+        new Field(
+          1,
+          1,
+          'Text Field',
+          FieldType.Text,
+          FieldStatus.Enabled,
+          true,
+          false
+        )
     ).to.not.throw();
   });
 
-  it('should throw an error when the type parameter is not a valid value', function () {
-    expect(
-      () => new Field(1, 1, 'Text Field', 'Invalid', 'Enabled', true, false)
-    ).to.throw();
-  });
-
-  it('should throw an error when the status parameter is not a valid value', function () {
-    expect(
-      () => new Field(1, 1, 'Text Field', 'Text', 'Unabled', true, false)
-    ).to.throw();
-  });
-
   it('should create a new instance of the Field class with the correct properties and values', function () {
-    const field = new Field(1, 1, 'Text Field', 'Text', 'Enabled', true, false);
+    const field = new Field(
+      1,
+      1,
+      'Text Field',
+      FieldType.Text,
+      FieldStatus.Enabled,
+      true,
+      false
+    );
 
-    expect(field).to.have.property('id');
-    expect(field).to.have.property('appId');
-    expect(field).to.have.property('name');
-    expect(field).to.have.property('type');
-    expect(field).to.have.property('status');
-    expect(field).to.have.property('isRequired');
-    expect(field).to.have.property('isUnique');
-    expect(field.id).to.equal(1);
-    expect(field.appId).to.equal(1);
-    expect(field.name).to.equal('Text Field');
-    expect(field.type).to.equal('Text');
-    expect(field.status).to.equal('Enabled');
-    expect(field.isRequired).to.equal(true);
-    expect(field.isUnique).to.equal(false);
+    expect(field).to.have.property('id', 1);
+    expect(field).to.have.property('appId', 1);
+    expect(field).to.have.property('name', 'Text Field');
+    expect(field).to.have.property('type', FieldType.Text);
+    expect(field).to.have.property('status', FieldStatus.Enabled);
+    expect(field).to.have.property('isRequired', true);
+    expect(field).to.have.property('isUnique', false);
   });
 });
diff --git a/tests/FormulaField.spec.ts b/tests/FormulaField.spec.ts
index 47e2f57..0aa26ec 100644
--- a/tests/FormulaField.spec.ts
+++ b/tests/FormulaField.spec.ts
@@ -1,5 +1,8 @@
 import { FormulaField } from '../src/models/FormulaField';
 import { expect } from 'chai';
+import { FieldType } from '../src/enums/FieldType';
+import { FieldStatus } from '../src/enums/FieldStatus';
+import { FormulaOutputType } from '../src/enums/FormulaOutputType';
 
 describe('FormulaField', function () {
   it('should be defined', function () {
@@ -14,33 +17,16 @@ describe('FormulaField', function () {
     expect(FormulaField).to.have.property('constructor');
   });
 
-  it('should throw an error if the outputType is not a valid FormulaOutputType', function () {
-    expect(
-      () =>
-        new FormulaField(
-          1,
-          1,
-          'Formula Field',
-          'Formula',
-          'Enabled',
-          false,
-          false,
-          'NotAType',
-          []
-        )
-    ).to.throw();
-  });
-
   it('should create a new FormulaField', function () {
     const formulaField = new FormulaField(
       1,
       1,
       'Formula Field',
-      'Formula',
-      'Enabled',
+      FieldType.Formula,
+      FieldStatus.Enabled,
       false,
       false,
-      'Text',
+      FormulaOutputType.Text,
       []
     );
     expect(formulaField).to.be.an.instanceOf(FormulaField);
@@ -51,11 +37,11 @@ describe('FormulaField', function () {
       1,
       1,
       'Formula Field',
-      'Formula',
-      'Enabled',
+      FieldType.Formula,
+      FieldStatus.Enabled,
       false,
       false,
-      'Text',
+      FormulaOutputType.Text,
       []
     );
     expect(formulaField).to.have.property('outputType');
@@ -66,11 +52,11 @@ describe('FormulaField', function () {
       1,
       1,
       'Formula Field',
-      'Formula',
-      'Enabled',
+      FieldType.Formula,
+      FieldStatus.Enabled,
       false,
       false,
-      'Text',
+      FormulaOutputType.Text,
       []
     );
     expect(formulaField).to.have.property('values');
diff --git a/tests/GetPagedFieldsResponse.spec.ts b/tests/GetPagedFieldsResponse.spec.ts
index 09d67c7..cb4f941 100644
--- a/tests/GetPagedFieldsResponse.spec.ts
+++ b/tests/GetPagedFieldsResponse.spec.ts
@@ -1,6 +1,8 @@
 import { GetPagedFieldsResponse } from '../src/models/GetPagedFieldsResponse';
 import { Field } from '../src/models/Field';
 import { expect } from 'chai';
+import { FieldType } from '../src/enums/FieldType';
+import { FieldStatus } from '../src/enums/FieldStatus';
 
 describe('GetPagedFieldsResponse', function () {
   it('should be defined', function () {
@@ -17,7 +19,17 @@ describe('GetPagedFieldsResponse', function () {
 
   it('should construct a new instance of GetPagedFieldsResponse', function () {
     const getPagedFieldsResponse = new GetPagedFieldsResponse(
-      [new Field(1, 1, 'Text Field 1', 'Text', 'Enabled', false, false)],
+      [
+        new Field(
+          1,
+          1,
+          'Text Field 1',
+          FieldType.Text,
+          FieldStatus.Enabled,
+          false,
+          false
+        ),
+      ],
       1,
       10,
       100,
diff --git a/tests/ListField.spec.ts b/tests/ListField.spec.ts
index ed2a725..b2e639f 100644
--- a/tests/ListField.spec.ts
+++ b/tests/ListField.spec.ts
@@ -1,5 +1,8 @@
 import { ListField } from '../src/models/ListField';
 import { expect } from 'chai';
+import { FieldType } from '../src/enums/FieldType';
+import { FieldStatus } from '../src/enums/FieldStatus';
+import { Multiplicity } from '../src/enums/Multiplicity';
 
 describe('ListField', function () {
   it('should be defined', function () {
@@ -14,34 +17,16 @@ describe('ListField', function () {
     expect(ListField).to.have.property('constructor');
   });
 
-  it('should throw an error if the multiplicity is not valid', function () {
-    expect(
-      () =>
-        new ListField(
-          1,
-          1,
-          'List Field',
-          'List',
-          'Enabled',
-          false,
-          false,
-          'Alone',
-          1,
-          []
-        )
-    ).to.throw();
-  });
-
   it('should create a new ListField', function () {
     const listField = new ListField(
       1,
       1,
       'List Field',
-      'List',
-      'Enabled',
+      FieldType.List,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1,
       []
     );
@@ -53,11 +38,11 @@ describe('ListField', function () {
       1,
       1,
       'List Field',
-      'List',
-      'Enabled',
+      FieldType.List,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1,
       []
     );
@@ -69,11 +54,11 @@ describe('ListField', function () {
       1,
       1,
       'List Field',
-      'List',
-      'Enabled',
+      FieldType.List,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1,
       []
     );
@@ -85,11 +70,11 @@ describe('ListField', function () {
       1,
       1,
       'List Field',
-      'List',
-      'Enabled',
+      FieldType.List,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1,
       []
     );
diff --git a/tests/Record.spec.ts b/tests/Record.spec.ts
new file mode 100644
index 0000000..37844b3
--- /dev/null
+++ b/tests/Record.spec.ts
@@ -0,0 +1,89 @@
+import { Record } from '../src/models/Record';
+import { expect } from 'chai';
+import { RecordValueType } from '../src/enums/RecordValueType';
+
+describe('Record', function () {
+  it('should be defined', function () {
+    expect(Record).to.not.be.undefined;
+  });
+
+  it('should have a constructor', function () {
+    expect(Record).to.have.property('constructor');
+  });
+
+  it('should have a constructor that has 3 parameters', function () {
+    expect(Record).to.have.lengthOf(3);
+  });
+
+  it('should have a constructor that sets its properties correctly', function () {
+    const record = new Record(1, 2, [
+      {
+        type: RecordValueType.String,
+        fieldId: 1,
+        value: 'test',
+      },
+      {
+        type: RecordValueType.String,
+        fieldId: 2,
+        value: 'test',
+      },
+    ]);
+    expect(record).to.have.property('appId', 1);
+    expect(record).to.have.property('recordId', 2);
+    expect(record)
+      .to.have.property('fieldData')
+      .that.is.an('array')
+      .with.lengthOf(2);
+  });
+
+  it('should have an appId property', function () {
+    expect(
+      new Record(1, 2, [
+        {
+          type: RecordValueType.String,
+          fieldId: 1,
+          value: 'test',
+        },
+        {
+          type: RecordValueType.String,
+          fieldId: 2,
+          value: 'test',
+        },
+      ])
+    ).to.have.property('appId');
+  });
+
+  it('should have a recordId property', function () {
+    expect(
+      new Record(1, 2, [
+        {
+          type: RecordValueType.String,
+          fieldId: 1,
+          value: 'test',
+        },
+        {
+          type: RecordValueType.String,
+          fieldId: 2,
+          value: 'test',
+        },
+      ])
+    ).to.have.property('recordId');
+  });
+
+  it('should have a fieldData property', function () {
+    expect(
+      new Record(1, 2, [
+        {
+          type: RecordValueType.String,
+          fieldId: 1,
+          value: 'test',
+        },
+        {
+          type: RecordValueType.String,
+          fieldId: 2,
+          value: 'test',
+        },
+      ])
+    ).to.have.property('fieldData');
+  });
+});
diff --git a/tests/RecordValue.spec.ts b/tests/RecordValue.spec.ts
new file mode 100644
index 0000000..f761866
--- /dev/null
+++ b/tests/RecordValue.spec.ts
@@ -0,0 +1,46 @@
+import { RecordValue } from '../src/models/RecordValue';
+import { expect } from 'chai';
+import { RecordValueType } from '../src/enums/RecordValueType';
+
+describe('RecordValue', function () {
+  it('should be defined', function () {
+    expect(RecordValue).to.not.be.undefined;
+  });
+
+  it('should have a constructor', function () {
+    expect(RecordValue).to.have.property('constructor');
+  });
+
+  it('should have a constructor that has 3 parameters', function () {
+    expect(RecordValue).to.have.lengthOf(3);
+  });
+
+  it('should have a constructor that sets its properties correctly', function () {
+    const recordValue = new RecordValue(
+      RecordValueType.Date,
+      2,
+      new Date().toUTCString()
+    );
+    expect(recordValue).to.have.property('type', RecordValueType.Date);
+    expect(recordValue).to.have.property('fieldId', 2);
+    expect(recordValue).to.have.property('value', new Date().toUTCString());
+  });
+
+  it('should have a type property', function () {
+    expect(
+      new RecordValue(RecordValueType.Date, 2, new Date().toUTCString())
+    ).to.have.property('type');
+  });
+
+  it('should have a fieldId property', function () {
+    expect(
+      new RecordValue(RecordValueType.Date, 2, new Date().toUTCString())
+    ).to.have.property('fieldId');
+  });
+
+  it('should have a value property', function () {
+    expect(
+      new RecordValue(RecordValueType.Date, 2, new Date().toUTCString())
+    ).to.have.property('value');
+  });
+});
diff --git a/tests/ResultValueType.spec.ts b/tests/RecordValueType.spec.ts
similarity index 73%
rename from tests/ResultValueType.spec.ts
rename to tests/RecordValueType.spec.ts
index cab8c7b..3b918aa 100644
--- a/tests/ResultValueType.spec.ts
+++ b/tests/RecordValueType.spec.ts
@@ -1,87 +1,87 @@
-import { ResultValueType } from '../src/enums/ResultValueType';
+import { RecordValueType } from '../src/enums/RecordValueType';
 import { expect } from 'chai';
 
-describe('ResultValueType', function () {
+describe('RecordValueType', function () {
   describe('String', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.String;
+      const result = RecordValueType.String;
       expect(result).to.equal('String');
     });
   });
 
   describe('Integer', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.Integer;
+      const result = RecordValueType.Integer;
       expect(result).to.equal('Integer');
     });
   });
 
   describe('Decimal', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.Decimal;
+      const result = RecordValueType.Decimal;
       expect(result).to.equal('Decimal');
     });
   });
 
   describe('Date', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.Date;
+      const result = RecordValueType.Date;
       expect(result).to.equal('Date');
     });
   });
 
   describe('TimeSpan', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.TimeSpan;
+      const result = RecordValueType.TimeSpan;
       expect(result).to.equal('TimeSpan');
     });
   });
 
   describe('Guid', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.Guid;
+      const result = RecordValueType.Guid;
       expect(result).to.equal('Guid');
     });
   });
 
   describe('StringList', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.StringList;
+      const result = RecordValueType.StringList;
       expect(result).to.equal('StringList');
     });
   });
 
   describe('IntegerList', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.IntegerList;
+      const result = RecordValueType.IntegerList;
       expect(result).to.equal('IntegerList');
     });
   });
 
   describe('GuidList', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.GuidList;
+      const result = RecordValueType.GuidList;
       expect(result).to.equal('GuidList');
     });
   });
 
   describe('AttachmentList', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.AttachmentList;
+      const result = RecordValueType.AttachmentList;
       expect(result).to.equal('AttachmentList');
     });
   });
 
   describe('ScoringGroupList', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.ScoringGroupList;
+      const result = RecordValueType.ScoringGroupList;
       expect(result).to.equal('ScoringGroupList');
     });
   });
 
   describe('FileList', function () {
     it('should return the correct value', function () {
-      const result = ResultValueType.FileList;
+      const result = RecordValueType.FileList;
       expect(result).to.equal('FileList');
     });
   });
diff --git a/tests/ReferenceField.spec.ts b/tests/ReferenceField.spec.ts
index 859d33b..eb47137 100644
--- a/tests/ReferenceField.spec.ts
+++ b/tests/ReferenceField.spec.ts
@@ -1,5 +1,8 @@
 import { ReferenceField } from '../src/models/ReferenceField';
 import { expect } from 'chai';
+import { FieldType } from '../src/enums/FieldType';
+import { FieldStatus } from '../src/enums/FieldStatus';
+import { Multiplicity } from '../src/enums/Multiplicity';
 
 describe('ReferenceField', function () {
   it('should be defined', function () {
@@ -14,33 +17,16 @@ describe('ReferenceField', function () {
     expect(ReferenceField).to.have.property('constructor');
   });
 
-  it('should throw an error if the multiplicity is not valid', function () {
-    expect(
-      () =>
-        new ReferenceField(
-          1,
-          1,
-          'Reference Field',
-          'Reference',
-          'Enabled',
-          false,
-          false,
-          'Alone',
-          1
-        )
-    ).to.throw();
-  });
-
   it('should create a new ReferenceField', function () {
     const referenceField = new ReferenceField(
       1,
       1,
       'Reference Field',
-      'Reference',
-      'Enabled',
+      FieldType.Reference,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1
     );
     expect(referenceField).to.be.an.instanceOf(ReferenceField);
@@ -51,11 +37,11 @@ describe('ReferenceField', function () {
       1,
       1,
       'Reference Field',
-      'Reference',
-      'Enabled',
+      FieldType.Reference,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1
     );
     expect(referenceField).to.have.property('multiplicity');
@@ -66,11 +52,11 @@ describe('ReferenceField', function () {
       1,
       1,
       'Reference Field',
-      'Reference',
-      'Enabled',
+      FieldType.Reference,
+      FieldStatus.Enabled,
       false,
       false,
-      'SingleSelect',
+      Multiplicity.SingleSelect,
       1
     );
     expect(referenceField).to.have.property('referencedAppId');
diff --git a/tests/Report.spec.ts b/tests/Report.spec.ts
index a94c8ab..6df6e82 100644
--- a/tests/Report.spec.ts
+++ b/tests/Report.spec.ts
@@ -27,4 +27,28 @@ describe('Report', function () {
     expect(report.name).to.be.equal('report');
     expect(report.description).to.be.equal('report description');
   });
+
+  it('should have an id property', function () {
+    expect(new Report(1, 1, 'report', 'report description')).to.have.property(
+      'id'
+    );
+  });
+
+  it('should have an appId property', function () {
+    expect(new Report(1, 1, 'report', 'report description')).to.have.property(
+      'appId'
+    );
+  });
+
+  it('should have a name property', function () {
+    expect(new Report(1, 1, 'report', 'report description')).to.have.property(
+      'name'
+    );
+  });
+
+  it('should have a description property', function () {
+    expect(new Report(1, 1, 'report', 'report description')).to.have.property(
+      'description'
+    );
+  });
 });
diff --git a/tests/ReportData.spec.ts b/tests/ReportData.spec.ts
index 97e157c..f2fb05a 100644
--- a/tests/ReportData.spec.ts
+++ b/tests/ReportData.spec.ts
@@ -47,4 +47,12 @@ describe('ReportData', function () {
         .with.lengthOf(2);
     });
   });
+
+  it('should have a columns property', function () {
+    expect(new ReportData(['a', 'b'], [])).to.have.property('columns');
+  });
+
+  it('should have a rows property', function () {
+    expect(new ReportData(['a', 'b'], [])).to.have.property('rows');
+  });
 });
diff --git a/tests/Row.spec.ts b/tests/Row.spec.ts
index 58c7bc7..3f2a90e 100644
--- a/tests/Row.spec.ts
+++ b/tests/Row.spec.ts
@@ -16,4 +16,12 @@ describe('Row', function () {
     expect(row).to.have.property('recordId', 1);
     expect(row).to.have.property('cells').that.is.an('array').with.lengthOf(2);
   });
+
+  it('should have a recordId property', function () {
+    expect(new Row(1, [{}, {}])).to.have.property('recordId');
+  });
+
+  it('should have a cells property', function () {
+    expect(new Row(1, [{}, {}])).to.have.property('cells');
+  });
 });
diff --git a/tests/ScoringGroup.spec.ts b/tests/ScoringGroup.spec.ts
new file mode 100644
index 0000000..0106ec5
--- /dev/null
+++ b/tests/ScoringGroup.spec.ts
@@ -0,0 +1,6 @@
+import { ScoringGroup } from '../src/models/ScoringGroup';
+import { expect } from 'chai';
+
+describe('ScoringGroup', function () {
+  throw new Error('Not implemented');
+});
diff --git a/tests/TimeSpanData.spec.ts b/tests/TimeSpanData.spec.ts
new file mode 100644
index 0000000..61cd9a4
--- /dev/null
+++ b/tests/TimeSpanData.spec.ts
@@ -0,0 +1,6 @@
+import { TimeSpanData } from '../src/models/TimeSpanData';
+import { expect } from 'chai';
+
+describe('TimeSpanData', function () {
+  throw new Error('Not implemented');
+});