diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 519607a..917e1ba 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -33,30 +33,38 @@ enum Status {
 }
 
 model Item {
-  id                Int              @id @default(autoincrement())
-  SKU               String?          @unique
-  Amount            Int
-  Comment           String?
-  name              String
-  manufacturer      String
-  category          Category         @relation(fields: [categoryId], references: [id])
-  categoryId        Int
-  status            Status
-  StorageLocation   StorageLocation? @relation(fields: [storageLocationId], references: [id])
+  id      Int     @id @unique @default(autoincrement())
+  SKU     String? @unique
+  amount  Int     @default(1)
+  name    String
+  Comment String?
+  status  Status  @default(normal) /// TODO: Would it be better to create a separate model for this as well instead of providing several static statuses to choose from(enum)?
+
+  manufacturer String /// TODO: Do we need this as a mandatory field? Probably we can add another model for manufacturer.
+
+  category   Category @relation(fields: [categoryId], references: [id])
+  categoryId Int
+
+  items    Item[] @relation("items") /// Item beinhaltet..
+  baseItem Item[] @relation("items") /// Item zugehörig zu.
+
+  storageLocation   StorageLocation? @relation(fields: [storageLocationId], references: [id])
   storageLocationId Int?
-  createdAt         DateTime         @default(now())
-  updatedAt         DateTime         @updatedAt
-  importedBy        String?
+
+  createdAt  DateTime @default(now())
+  updatedAt  DateTime @updatedAt
+  importedBy String?
 }
 
 model StorageLocation {
   id            Int          @id @default(autoincrement())
-  name          String       @unique
+  name          String       @unique /// This is our LocationID for external use prefixed with: '%StorageUnit%_'
   storageUnit   StorageUnit? @relation(fields: [storageUnitId], references: [id])
   storageUnitId Int?
   Item          Item[]
 }
 
+/// A StorageUnit is the base and can hold multiple StorageLocations.
 model StorageUnit {
   id              Int               @id @default(autoincrement())
   name            String
@@ -74,3 +82,22 @@ model Category {
   description String?
   Item        Item[]
 }
+
+/// TODO: Add relationship to StorageUnit, Item and if necessary to StorageLocation.
+model Owner {
+  id          Int       @id @default(autoincrement())
+  type        OwnerType @default(person)
+  name        String
+  lastName    String?
+  street      String
+  houseNumber String
+  zipCode     String
+  city        String
+  country     String
+}
+
+enum OwnerType {
+  person
+  customer
+  company
+}
diff --git a/src/assets/configHandler.ts b/src/assets/configHandler.ts
index 2ad7905..3663f35 100644
--- a/src/assets/configHandler.ts
+++ b/src/assets/configHandler.ts
@@ -54,7 +54,7 @@ export default class config {
 }
 
 // BUG: If file does'nt exist -> fail.
-// ToDo: Check for SyntaxError on fileread and ask if the user wants to continue -> overwrite everything. This behavior is currently standard.
+// TODO: Check for SyntaxError on fileread and ask if the user wants to continue -> overwrite everything. This behavior is currently standard.
 
 /* 
 
diff --git a/src/routes/frontend/manage/import/csvImport.ts b/src/routes/frontend/manage/import/csvImport.ts
index c301e28..7e72100 100644
--- a/src/routes/frontend/manage/import/csvImport.ts
+++ b/src/routes/frontend/manage/import/csvImport.ts
@@ -55,7 +55,7 @@ export default (req: Request, res: Response) => {
 						const promise = prisma.item.create({
 							data: {
 								name: record.name,
-								Amount: parseInt(record.amount),
+								amount: parseInt(record.amount),
 								Comment: record.comment,
 								category: {
 									connect: {