diff --git a/app/controllers/jobs_controller.rb b/app/controllers/jobs_controller.rb
index f000260..78eaeb3 100644
--- a/app/controllers/jobs_controller.rb
+++ b/app/controllers/jobs_controller.rb
@@ -11,13 +11,13 @@ class JobsController < ApplicationController
 
   # GET /jobs/new
   def new
-    @job = Job.new(costumer_firstname: current_user.firstname, costumer_lastname: current_user.lastname)
+    @job = Job.new(customer_firstname: current_user.firstname, customer_lastname: current_user.lastname)
   end
 
   # POST /jobs or /jobs.json
   def create
     @job = Job.new(job_params)
-    @job.costumer = current_user
+    @job.customer = current_user
 
     respond_to do |format|
       if @job.save
@@ -95,6 +95,6 @@ class JobsController < ApplicationController
 
   # Only allow a list of trusted parameters through.
   def job_params
-    params.require(:job).permit(:costumer_id, :costumer_firstname, :costumer_lastname, :privacy_policy, :pdf)
+    params.require(:job).permit(:customer_id, :customer_firstname, :customer_lastname, :privacy_policy, :pdf)
   end
 end
diff --git a/app/controllers/operator/jobs_controller.rb b/app/controllers/operator/jobs_controller.rb
index 530e640..0d85009 100644
--- a/app/controllers/operator/jobs_controller.rb
+++ b/app/controllers/operator/jobs_controller.rb
@@ -114,7 +114,7 @@ class Operator::JobsController < ApplicationController
 
   # Only allow a list of trusted parameters through.
   def job_params
-    params.require(:job).permit(:pdf, :operator_id, :costumer_id, :operator_firstname, :operator_lastname, :costumer_firstname, :costumer_lastname, :status, :privacy_policy, :intern, :cost_center, :number_of_plans_a0, :number_of_plans_a1, :number_of_plans_a2, :number_of_plans_a3, :costum_qm_plan)
+    params.require(:job).permit(:pdf, :operator_id, :customer_id, :operator_firstname, :operator_lastname, :customer_firstname, :customer_lastname, :status, :privacy_policy, :intern, :cost_center, :number_of_plans_a0, :number_of_plans_a1, :number_of_plans_a2, :number_of_plans_a3, :costum_qm_plan)
   end
 
   # FIXME: Move broadcast to model though i don't think view logic belongs in the model
diff --git a/app/models/job.rb b/app/models/job.rb
index af7b030..d5e83fe 100644
--- a/app/models/job.rb
+++ b/app/models/job.rb
@@ -1,14 +1,14 @@
 class Job < ApplicationRecord
   attr_accessor :current_user
 
-  belongs_to :costumer, class_name: "User", optional: true, counter_cache: :costumer_jobs_count, inverse_of: :costumer_jobs
+  belongs_to :customer, class_name: "User", optional: true, counter_cache: :customer_jobs_count, inverse_of: :customer_jobs
   belongs_to :operator, class_name: "User", optional: true, counter_cache: :operator_jobs_count, inverse_of: :operator_jobs
   belongs_to :creator, class_name: "User", optional: true, counter_cache: :created_jobs_count, inverse_of: :created_jobs
   belongs_to :cashier, class_name: "User", optional: true, counter_cache: :cashed_jobs_count, inverse_of: :cashed_jobs
 
   has_one_attached :pdf, dependent: :purge
 
-  validates_presence_of :costumer_firstname, :costumer_lastname, :pdf
+  validates_presence_of :customer_firstname, :customer_lastname, :pdf
   validates_presence_of :cost_center, if: :intern
   validates :privacy_policy, acceptance: true, unless: :created_by_operator?
   validates :number_of_plans_a0, :number_of_plans_a1, :number_of_plans_a2, :number_of_plans_a3, :costum_qm_plan, numericality: { greater_than_or_equal_to: 0 }
@@ -21,7 +21,7 @@ class Job < ApplicationRecord
   before_save :set_cost_qm
   before_save :calc_cost, if: :printed_pages_changes?
 
-  before_validation :set_costumer_infos, unless: :created_by_operator?, on: :create
+  before_validation :set_customer_infos, unless: :created_by_operator?, on: :create
 
   # TODO: works only when job is created. Should move analyzer to activestorage :
   # https://discuss.rubyonrails.org/t/active-storage-in-production-lessons-learned-and-in-depth-look-at-how-it-works/83289
@@ -42,7 +42,7 @@ class Job < ApplicationRecord
   AVAILABLE_PAGE_FORMATS = [ :a0, :a1, :a2, :a3 ]
 
   # scope :created_as_operator, -> { where created_as_operator: true }
-  # scope :created_as_costumer, -> { where created_as_operator: false }
+  # scope :created_as_customer, -> { where created_as_operator: false }
   scope :not_canceled, -> { !canceled }
 
   # NOTE: only named status are returned because of WHERE/IN clause for the enum values
@@ -60,7 +60,7 @@ class Job < ApplicationRecord
   scope :status_changed_on_day, lambda { |date|
                             where("status_changed_at >= ? AND status_changed_at <= ?", date.beginning_of_day, date.end_of_day)
                           }
-  scope :created_by_costumer, -> { not(:created_by_operator) }
+  scope :created_by_customer, -> { not(:created_by_operator) }
 
   # Returns all jobs with status: open print pickup and jobs from today with status: paid canceled
   # paid: only updated_at today
@@ -72,7 +72,7 @@ class Job < ApplicationRecord
       .where("status_changed_at >= ?", Time.now.beginning_of_day))
       # .in_status_order
       .order(created_at: :asc)
-      # .order(:costumer_firstname, :costumer_lastname)
+      # .order(:customer_firstname, :customer_lastname)
       .with_attached_pdf # scope from activestorage for .includes(pdf_attachment: :blob)
     # .references(:pdf_attachment, :blob) # creates big join table
   end
@@ -81,8 +81,8 @@ class Job < ApplicationRecord
     Job.where(status: %i[paid canceled])
   end
 
-  def costumer_fullname
-    [ costumer_firstname, " ", costumer_lastname ].join
+  def customer_fullname
+    [ customer_firstname, " ", customer_lastname ].join
   end
 
   def acceptable_pdf
@@ -127,13 +127,13 @@ class Job < ApplicationRecord
       csv << columns_readable
       jobs.each do |job|
         # csv << job.attributes.values_at(*columns)
-        csv << [ job.id, job.costumer_firstname, job.costumer_lastname, job.cashier_firstname, job.cashier_lastname, job.paid_at.localtime.strftime("%Y-%m-%d"), job.cost.to_s + " €"  ]
+        csv << [ job.id, job.customer_firstname, job.customer_lastname, job.cashier_firstname, job.cashier_lastname, job.paid_at.localtime.strftime("%Y-%m-%d"), job.cost.to_s + " €"  ]
       end
     end
   end
 
   def self.ransackable_attributes(auth_object = nil)
-    [ "created_at", "id", "costumer_firstname", "costumer_lastname", "pdf.", "created_by_operator", "number_of_plans_a0", "number_of_plans_a1", "number_of_plans_a2", "number_of_plans_a3", "costum_qm_plan", "cost", "status" ]
+    [ "created_at", "id", "customer_firstname", "customer_lastname", "pdf.", "created_by_operator", "number_of_plans_a0", "number_of_plans_a1", "number_of_plans_a2", "number_of_plans_a3", "costum_qm_plan", "cost", "status" ]
   end
 
   def self.ransackable_associations(auth_object = nil)
@@ -187,10 +187,10 @@ class Job < ApplicationRecord
     save
   end
 
-  def set_costumer_infos
-    self.costumer = current_user unless self.costumer
-    self.costumer_firstname = costumer.firstname
-    self.costumer_lastname = costumer.lastname
+  def set_customer_infos
+    self.customer = current_user unless self.customer
+    self.customer_firstname = customer.firstname
+    self.customer_lastname = customer.lastname
   end
 
   def set_operator_infos
diff --git a/app/models/user.rb b/app/models/user.rb
index bbba7f5..0160d5b 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,7 +1,7 @@
 class User < ApplicationRecord
   has_secure_password
   # has_many :jobs
-  has_many :costumer_jobs, foreign_key: :costumer_id, class_name: "Job"
+  has_many :customer_jobs, foreign_key: :customer_id, class_name: "Job"
   has_many :operator_jobs, foreign_key: :operator_id, class_name: "Job"
   has_many :created_jobs, foreign_key: :creator_id, class_name: "Job"
   has_many :cashed_jobs, foreign_key: :cashier_id, class_name: "Job"
@@ -45,7 +45,7 @@ class User < ApplicationRecord
   end
 
   def self.ransackable_attributes(auth_object = nil)
-    [ "created_at", "email", "firstname", "id",  "costumer_jobs_count", "operator_jobs_count", "lastname", "role", "verified", "name" ]
+    [ "created_at", "email", "firstname", "id",  "customer_jobs_count", "operator_jobs_count", "lastname", "role", "verified", "name" ]
   end
 
   def self.ransackable_associations(auth_object = nil)
diff --git a/app/policies/job_policy.rb b/app/policies/job_policy.rb
index ed476e1..21c9652 100644
--- a/app/policies/job_policy.rb
+++ b/app/policies/job_policy.rb
@@ -2,7 +2,7 @@ class JobPolicy < ApplicationPolicy
   skip_pre_check :allow_admins, only: :cancel?
 
   def cancel?
-    record.open? && (user == record.costumer || user.operator? || user.admin?)
+    record.open? && (user == record.customer || user.operator? || user.admin?)
   end
 
   # See https://actionpolicy.evilmartians.io/#/writing_policies
diff --git a/app/views/admin/jobs/_job_tr.html.erb b/app/views/admin/jobs/_job_tr.html.erb
index f12d6e4..23663ab 100644
--- a/app/views/admin/jobs/_job_tr.html.erb
+++ b/app/views/admin/jobs/_job_tr.html.erb
@@ -7,10 +7,10 @@
     <% end %>
   </td>
   <td class="p-2 py-3">
-    <%= link_to job.costumer_firstname, admin_user_path(job.costumer), target: "_top" %>
+    <%= link_to_if job.customer_firstname, admin_user_path(job.customer), target: "_top" %>
   </td>
   <td class="p-2 py-3">
-    <%= link_to job.costumer_lastname, admin_user_path(job.costumer), target: "_top" %>
+    <%= link_to_if job.customer_lastname, admin_user_path(job.customer), target: "_top" %>
   </td>
   <td class="p-2 py-3">
     <% if job.pdf.attached? %>
diff --git a/app/views/admin/jobs/index.html.erb b/app/views/admin/jobs/index.html.erb
index c7ef031..cf7aaf0 100644
--- a/app/views/admin/jobs/index.html.erb
+++ b/app/views/admin/jobs/index.html.erb
@@ -12,7 +12,7 @@
   <%= link_to icon("calendar", class: "icon size-5 mr-3") + 'Kalender', admin_jobs_path(calendar: true), class: "px-4 py-2 hover:bg-gray-100 hover:text-hsrm-red border-b-4 hover:border-hsrm-red-light" %>
   <div class="flex items-center justify-between py-4">
     <%= search_form_for @q, data: { turbo_frame: :admin_jobs, turbo_action: 'advance' }, url: admin_jobs_path() do |f| %>
-      <%= f.search_field :costumer_firstname_or_costumer_lastname_or_pdf_blob_filename_cont, placeholder: "Suchen", oninput: 'this.form.requestSubmit();' %>
+      <%= f.search_field :customer_firstname_or_customer_lastname_or_pdf_blob_filename_cont, placeholder: "Suchen", oninput: 'this.form.requestSubmit();' %>
       <%= f.label :status_eq, "Status:" %>
       <%= f.select :status_eq, Job.statuses.keys, {include_blank: "alle"}, onchange: 'this.form.requestSubmit();' %>
       <%= f.label :created_by_operator_eq, "Erstellt vom:" %>
@@ -32,8 +32,8 @@
         <thead class="font-semibold tracking-wide bg-gray-200 border-b-2 border-gray-300 text text-hsrm-gray">
           <tr>
             <th class="w-1 p-2 py-3 text-center text-nowrap"><%= sort_link(@q, :id, "ID", ) %></th>
-            <th class="min-w-24 p-2 py-3 text-left"><%= sort_link(@q, :costumer_firstname, "Vorname") %></th>
-            <th class="min-w-24 p-2 py-3 text-left"><%= sort_link(@q, :costumer_lastname, "Nachname") %></th>
+            <th class="min-w-24 p-2 py-3 text-left"><%= sort_link(@q, :customer_firstname, "Vorname") %></th>
+            <th class="min-w-24 p-2 py-3 text-left"><%= sort_link(@q, :customer_lastname, "Nachname") %></th>
             <th class="p-2 py-3 text-left"><%= sort_link(@q, :pdf_blob_filename, "PDF") %></th>
             <th class="w-1 p-1 py-3 text-left text-nowrap"><%= sort_link(@q, :number_of_plans_a0, "A0") %></th>
             <th class="w-1 p-1 py-3 text-left text-nowrap"><%= sort_link(@q, :number_of_plans_a1, "A1") %></th>
diff --git a/app/views/admin/users/_user.html.erb b/app/views/admin/users/_user.html.erb
index 71e446d..82616b6 100644
--- a/app/views/admin/users/_user.html.erb
+++ b/app/views/admin/users/_user.html.erb
@@ -8,8 +8,8 @@
   <p>E-Mail Verifiziert:      
     <%= icon bool_icon(user.verified), class: "icon #{user.verified ? "text-green-600" : "text-red-600"}" %></p>
   <p><%= user.created_at %></p>
-  <p>Druckaufträge als Kunde: <%= @user.costumer_jobs.size %></p>
-  <p>davon abgebrochen: <%= @user.costumer_jobs.canceled.size %></p>
+  <p>Druckaufträge als Kunde: <%= @user.customer_jobs.size %></p>
+  <p>davon abgebrochen: <%= @user.customer_jobs.canceled.size %></p>
   <p>Druckaufträge als Operator: <%= @user.operator_jobs.size %></p>
   <p>Druckaufträge kassiert: <%= @user.cashed_jobs.size %></p>
 </div>
diff --git a/app/views/admin/users/index.html.erb b/app/views/admin/users/index.html.erb
index 286e8cf..f9a13de 100644
--- a/app/views/admin/users/index.html.erb
+++ b/app/views/admin/users/index.html.erb
@@ -74,7 +74,7 @@
           <th class="min-w-24 p-2 py-3 text-left"><%= sort_link(@q, :firstname, "Vorname") %></th>
           <th class="min-w-24 p-2 py-3 text-left"><%= sort_link(@q, :lastname, "Nachname") %></th>
           <th class="p-2 py-3 text-left"><%= sort_link(@q, :email, "E-Mail-Adresse") %></th>
-          <th class="w-1 p-2 py-3 text-right text-nowrap"><%= sort_link(@q, :costumer_jobs_count, "# Jobs") %></th>
+          <th class="w-1 p-2 py-3 text-right text-nowrap"><%= sort_link(@q, :customer_jobs_count, "# Jobs") %></th>
           <th class="w-1 p-2 py-3 text-center text-nowrap"><%= sort_link(@q, :created_at, "Registriert am") %></th>
           <th class="w-1 p-2 py-3 text-center"><%= sort_link(@q, :role, "Rolle") %></th>
         </tr>
diff --git a/app/views/admin/users/show.html.erb b/app/views/admin/users/show.html.erb
index 39b9de0..a9454ab 100644
--- a/app/views/admin/users/show.html.erb
+++ b/app/views/admin/users/show.html.erb
@@ -21,7 +21,7 @@
       </tr>
     </thead>
     <tbody id='jobs' class="divide-y divivde-gray-300">
-      <%= render partial: "jobs/job_tr", collection: @user.costumer_jobs.order(created_at: :desc).limit(10), as: :job, locals: { no_actions: true } %>
+      <%= render partial: "jobs/job_tr", collection: @user.customer_jobs.order(created_at: :desc).limit(10), as: :job, locals: { no_actions: true } %>
     </tbody>
   </table>
 </div>
diff --git a/app/views/jobs/_form.html.erb b/app/views/jobs/_form.html.erb
index 9d4b35d..9d9bc5e 100644
--- a/app/views/jobs/_form.html.erb
+++ b/app/views/jobs/_form.html.erb
@@ -11,12 +11,12 @@
     </div>
   <% end %>
   <div class="my-5">
-    <%= form.label :costumer_firstname, 'Vorname' %>
-    <%= form.text_field :costumer_firstname, disabled: true ,class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
+    <%= form.label :customer_firstname, 'Vorname' %>
+    <%= form.text_field :customer_firstname, disabled: true ,class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
   </div>
   <div class="my-5">
-    <%= form.label :costumer_lastname, 'Nachname' %>
-    <%= form.text_field :costumer_lastname, disabled: true ,class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
+    <%= form.label :customer_lastname, 'Nachname' %>
+    <%= form.text_field :customer_lastname, disabled: true ,class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
   </div>
   <div>
     <%= form.label :pdf, "Plan auswählen (PDF-Format)" %>
diff --git a/app/views/jobs/_job_tr.html.erb b/app/views/jobs/_job_tr.html.erb
index 463191d..75a5f73 100644
--- a/app/views/jobs/_job_tr.html.erb
+++ b/app/views/jobs/_job_tr.html.erb
@@ -11,7 +11,7 @@
     <% end %>
   </td>
   <td class="p-2 py-3">
-    <%= job.costumer_fullname %>
+    <%= job.customer_fullname %>
   </td>
   <td class="p-2 py-3">
     <% if job.pdf.attached? %>
diff --git a/app/views/operator/jobs/_form.html.erb b/app/views/operator/jobs/_form.html.erb
index 541f9dd..ee3ecae 100644
--- a/app/views/operator/jobs/_form.html.erb
+++ b/app/views/operator/jobs/_form.html.erb
@@ -11,12 +11,12 @@
     </div>
   <% end %>
   <div class="my-5">
-    <%= form.label :costumer_firstname, 'Vorname' %>
-    <%= form.text_field :costumer_firstname, class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
+    <%= form.label :customer_firstname, 'Vorname' %>
+    <%= form.text_field :customer_firstname, class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
   </div>
   <div class="my-5">
-    <%= form.label :costumer_lastname, 'Nachname' %>
-    <%= form.text_field :costumer_lastname, class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
+    <%= form.label :customer_lastname, 'Nachname' %>
+    <%= form.text_field :customer_lastname, class: "block shadow-lg rounded-md border border-hsrm-gray outline-none px-3 py-2 mt-2 w-full" %>
   </div>
   <div class="my-5 inline">
     <%= form.check_box :intern, class: "pr-2 h-5 w-5" %>
diff --git a/app/views/operator/jobs/_job.html.erb b/app/views/operator/jobs/_job.html.erb
index 9e2a933..6b77ae5 100644
--- a/app/views/operator/jobs/_job.html.erb
+++ b/app/views/operator/jobs/_job.html.erb
@@ -4,9 +4,9 @@
   </div>
   <div>
     <p class="my-3">
-      <strong class="mb-1 font-medium">Costumer ID:</strong>
-      <% if job.costumer %>
-        <%= link_to_if allowed_to?(:show?, job.costumer, namespace: :Admin), "#{job.costumer_id} - #{job.costumer.name} (#{job.costumer.email})", admin_user_path(job.costumer) %>
+      <strong class="mb-1 font-medium">customer ID:</strong>
+      <% if job.customer %>
+        <%= link_to_if allowed_to?(:show?, job.customer, namespace: :Admin), "#{job.customer_id} - #{job.customer.name} (#{job.customer.email})", admin_user_path(job.customer) %>
       <% else %>
         -
       <% end %>
@@ -37,7 +37,7 @@
     </p>
     <p class="my-3">
       <strong class="mb-1 font-medium">Kunde:</strong>
-      <%= link_to_if job.costumer && allowed_to?(:show? , job.costumer, namespace: :Admin), "#{job.costumer_firstname} #{job.costumer_lastname}", ( job.costumer ? admin_user_path(job.costumer) : "" ) %>
+      <%= link_to_if job.customer && allowed_to?(:show? , job.customer, namespace: :Admin), "#{job.customer_firstname} #{job.customer_lastname}", ( job.customer ? admin_user_path(job.customer) : "" ) %>
     </p>
     <p class="my-3">
       <strong class="mb-1 font-medium">Operator:</strong>
diff --git a/app/views/operator/jobs/_job_tr.html.erb b/app/views/operator/jobs/_job_tr.html.erb
index d7002c1..4726339 100644
--- a/app/views/operator/jobs/_job_tr.html.erb
+++ b/app/views/operator/jobs/_job_tr.html.erb
@@ -13,7 +13,7 @@
     <% end %>
   </td>
   <td class="p-2 py-3">
-    <%= job.costumer_fullname %>
+    <%= job.customer_fullname %>
   </td>
   <td class="p-2 py-3">
     <% if job.pdf.attached? %>
diff --git a/app/views/profiles/show.html.erb b/app/views/profiles/show.html.erb
index 9cff8d4..9fbcaf2 100644
--- a/app/views/profiles/show.html.erb
+++ b/app/views/profiles/show.html.erb
@@ -22,11 +22,11 @@
   <h2 class="p-1 text-lg font-bold border-b-2 border-hsrm-red">Aufgegebene Druckaufträge</h2>
   <p>
     Aufgegebene Druckaufträge
-    <%= current_user.costumer_jobs.size %>
+    <%= current_user.customer_jobs.size %>
   </p>
   <p>
     Abgebrochene Druckaufgräge
-    <%= current_user.costumer_jobs.canceled.size %>
+    <%= current_user.customer_jobs.canceled.size %>
   </p>
   <% if is_admin_or_operator? %>
     <h2 class="p-1 text-lg font-bold border-b-2 border-hsrm-red">Bearbeitete Druckaufträge</h2>
diff --git a/config/locales/de.yml b/config/locales/de.yml
index 8c9c9b7..18f1d0e 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -33,8 +33,8 @@ de:
       job:
         pdf: "Plan (PDF Format)"
         privacy_policy: "Datenschutzerklärung"
-        costumer_firstname: "Vorname"
-        costumer_lastname: "Nachname"
+        customer_firstname: "Vorname"
+        customer_lastname: "Nachname"
     errors:
       models:
         job:
diff --git a/db/migrate/20240727101347_create_jobs.rb b/db/migrate/20240727101347_create_jobs.rb
index e21cf4d..e2dfd61 100644
--- a/db/migrate/20240727101347_create_jobs.rb
+++ b/db/migrate/20240727101347_create_jobs.rb
@@ -1,12 +1,12 @@
 class CreateJobs < ActiveRecord::Migration[7.1]
   def change
     create_table :jobs do |t|
-      t.references :costumer, null: true
+      t.references :customer, null: true
       t.references :creator, null: true
       t.references :cashier, null: true
       t.references :operator, null: true
-      t.string :costumer_firstname
-      t.string :costumer_lastname
+      t.string :customer_firstname
+      t.string :customer_lastname
       t.string :operator_firstname
       t.string :operator_lastname
       t.string :cashier_firstname
diff --git a/db/migrate/20240826144015_create_users.rb b/db/migrate/20240826144015_create_users.rb
index 20d68c5..2790483 100644
--- a/db/migrate/20240826144015_create_users.rb
+++ b/db/migrate/20240826144015_create_users.rb
@@ -10,14 +10,14 @@ class CreateUsers < ActiveRecord::Migration[7.2]
 
       t.boolean :verified, null: false, default: false
 
-      t.integer :costumer_jobs_count, default: 0
+      t.integer :customer_jobs_count, default: 0
       t.integer :operator_jobs_count, default: 0
       t.integer :created_jobs_count, default: 0
       t.integer :cashed_jobs_count, default: 0
 
       t.timestamps
     end
-    add_foreign_key :jobs, :users, column: :costumer_id
+    add_foreign_key :jobs, :users, column: :customer_id
     add_foreign_key :jobs, :users, column: :operator_id
     add_foreign_key :jobs, :users, column: :creator_id
     add_foreign_key :jobs, :users, column: :cashier_id
diff --git a/db/schema.rb b/db/schema.rb
index 4ffeb96..45a4ca1 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -40,12 +40,12 @@ ActiveRecord::Schema[7.2].define(version: 2024_08_26_144016) do
   end
 
   create_table "jobs", force: :cascade do |t|
-    t.integer "costumer_id"
+    t.integer "customer_id"
     t.integer "creator_id"
     t.integer "cashier_id"
     t.integer "operator_id"
-    t.string "costumer_firstname"
-    t.string "costumer_lastname"
+    t.string "customer_firstname"
+    t.string "customer_lastname"
     t.string "operator_firstname"
     t.string "operator_lastname"
     t.string "cashier_firstname"
@@ -68,8 +68,8 @@ ActiveRecord::Schema[7.2].define(version: 2024_08_26_144016) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.index ["cashier_id"], name: "index_jobs_on_cashier_id"
-    t.index ["costumer_id"], name: "index_jobs_on_costumer_id"
     t.index ["creator_id"], name: "index_jobs_on_creator_id"
+    t.index ["customer_id"], name: "index_jobs_on_customer_id"
     t.index ["operator_id"], name: "index_jobs_on_operator_id"
     t.index ["status"], name: "index_jobs_on_status"
   end
@@ -90,7 +90,7 @@ ActiveRecord::Schema[7.2].define(version: 2024_08_26_144016) do
     t.string "lastname"
     t.string "role", default: "user"
     t.boolean "verified", default: false, null: false
-    t.integer "costumer_jobs_count", default: 0
+    t.integer "customer_jobs_count", default: 0
     t.integer "operator_jobs_count", default: 0
     t.integer "created_jobs_count", default: 0
     t.integer "cashed_jobs_count", default: 0
@@ -103,8 +103,8 @@ ActiveRecord::Schema[7.2].define(version: 2024_08_26_144016) do
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
   add_foreign_key "jobs", "users", column: "cashier_id"
-  add_foreign_key "jobs", "users", column: "costumer_id"
   add_foreign_key "jobs", "users", column: "creator_id"
+  add_foreign_key "jobs", "users", column: "customer_id"
   add_foreign_key "jobs", "users", column: "operator_id"
   add_foreign_key "sessions", "users"
 end
diff --git a/db/seeds.rb b/db/seeds.rb
index d827872..a52ddda 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -78,7 +78,7 @@ end
     job = Job.new(status:, privacy_policy: true, created_at: created_at)
     job.pdf = File.open(Rails.root.join('db/pdfs/', pdf))
     student = students[rand(0..9)]
-    job.costumer = student
+    job.customer = student
     job.creator = student
     operator = operators[rand(0...1)]
     job.operator = operator if status != :open
@@ -112,7 +112,7 @@ end
     job = Job.new(status:, privacy_policy: true, created_at: created_at)
     job.pdf = File.open(Rails.root.join('db/pdfs/', pdf))
     student = students[rand(0...9)]
-    job.costumer = student
+    job.customer = student
     job.creator = student
     operator = operators[rand(0...1)]
     job.operator = operator if status == :paid
@@ -137,7 +137,7 @@ end
     job = Job.new(status:, privacy_policy: true)
     job.pdf = File.open(Rails.root.join('db/pdfs/', pdf))
     student = students[rand(0...4)]
-    job.costumer = student
+    job.customer = student
     job.creator = student
     operator = operators[rand(0...1)]
     job.operator = operator if status != :open
@@ -154,9 +154,9 @@ end
   job = Job.new(privacy_policy: true)
   job.pdf = File.open(Rails.root.join('db/pdfs/', pdf))
   student = students[rand(0...9)]
-  job.costumer = [ student, student, false ].sample
-  job.costumer_firstname = student.firstname
-  job.costumer_lastname = student.lastname
+  job.customer = [ student, student, false ].sample
+  job.customer_firstname = student.firstname
+  job.customer_lastname = student.lastname
   job.creator = operators[rand(0...1)]
   job.created_by_operator = true
   job.inspect
diff --git a/test/controllers/jobs_controller_test.rb b/test/controllers/jobs_controller_test.rb
index 0645b7d..9b215a1 100644
--- a/test/controllers/jobs_controller_test.rb
+++ b/test/controllers/jobs_controller_test.rb
@@ -17,7 +17,7 @@ class JobsControllerTest < ActionDispatch::IntegrationTest
 
   test "should create job" do
     assert_difference("Job.count") do
-      post jobs_url, params: { job: { cost_center: @job.cost_center, costum_qm_plan: @job.costum_qm_plan, costumer_firstname: @job.costumer_firstname, costumer_id_id: @job.costumer_id_id, costumer_lastname: @job.costumer_lastname, intern: @job.intern, number_of_plans_a0: @job.number_of_plans_a0, number_of_plans_a1: @job.number_of_plans_a1, number_of_plans_a2: @job.number_of_plans_a2, number_of_plans_a3: @job.number_of_plans_a3, operator_firstname: @job.operator_firstname, operator_id_id: @job.operator_id_id, operator_lastname: @job.operator_lastname, paid: @job.paid, printed_at: @job.printed_at } }
+      post jobs_url, params: { job: { cost_center: @job.cost_center, costum_qm_plan: @job.costum_qm_plan, customer_firstname: @job.customer_firstname, customer_id_id: @job.customer_id_id, customer_lastname: @job.customer_lastname, intern: @job.intern, number_of_plans_a0: @job.number_of_plans_a0, number_of_plans_a1: @job.number_of_plans_a1, number_of_plans_a2: @job.number_of_plans_a2, number_of_plans_a3: @job.number_of_plans_a3, operator_firstname: @job.operator_firstname, operator_id_id: @job.operator_id_id, operator_lastname: @job.operator_lastname, paid: @job.paid, printed_at: @job.printed_at } }
     end
 
     assert_redirected_to job_url(Job.last)
@@ -34,7 +34,7 @@ class JobsControllerTest < ActionDispatch::IntegrationTest
   end
 
   test "should update job" do
-    patch job_url(@job), params: { job: { cost_center: @job.cost_center, costum_qm_plan: @job.costum_qm_plan, costumer_firstname: @job.costumer_firstname, costumer_id_id: @job.costumer_id_id, costumer_lastname: @job.costumer_lastname, intern: @job.intern, number_of_plans_a0: @job.number_of_plans_a0, number_of_plans_a1: @job.number_of_plans_a1, number_of_plans_a2: @job.number_of_plans_a2, number_of_plans_a3: @job.number_of_plans_a3, operator_firstname: @job.operator_firstname, operator_id_id: @job.operator_id_id, operator_lastname: @job.operator_lastname, paid: @job.paid, printed_at: @job.printed_at } }
+    patch job_url(@job), params: { job: { cost_center: @job.cost_center, costum_qm_plan: @job.costum_qm_plan, customer_firstname: @job.customer_firstname, customer_id_id: @job.customer_id_id, customer_lastname: @job.customer_lastname, intern: @job.intern, number_of_plans_a0: @job.number_of_plans_a0, number_of_plans_a1: @job.number_of_plans_a1, number_of_plans_a2: @job.number_of_plans_a2, number_of_plans_a3: @job.number_of_plans_a3, operator_firstname: @job.operator_firstname, operator_id_id: @job.operator_id_id, operator_lastname: @job.operator_lastname, paid: @job.paid, printed_at: @job.printed_at } }
     assert_redirected_to job_url(@job)
   end
 
diff --git a/test/fixtures/jobs.yml b/test/fixtures/jobs.yml
index 396e27a..8fbffe2 100644
--- a/test/fixtures/jobs.yml
+++ b/test/fixtures/jobs.yml
@@ -2,11 +2,11 @@
 
 one:
   operator_id: one
-  costumer_id: one
+  customer_id: one
   operator_firstname: MyString
   operator_lastname: MyString
-  costumer_firstname: MyString
-  costumer_lastname: MyString
+  customer_firstname: MyString
+  customer_lastname: MyString
   paid: false
   printed_at: 2024-07-27 12:13:47
   intern: false
@@ -19,11 +19,11 @@ one:
 
 two:
   operator_id: two
-  costumer_id: two
+  customer_id: two
   operator_firstname: MyString
   operator_lastname: MyString
-  costumer_firstname: MyString
-  costumer_lastname: MyString
+  customer_firstname: MyString
+  customer_lastname: MyString
   paid: false
   printed_at: 2024-07-27 12:13:47
   intern: false
diff --git a/test/system/jobs_test.rb b/test/system/jobs_test.rb
index 2f0830c..2cd2c5e 100644
--- a/test/system/jobs_test.rb
+++ b/test/system/jobs_test.rb
@@ -16,9 +16,9 @@ class JobsTest < ApplicationSystemTestCase
 
     fill_in "Cost center", with: @job.cost_center
     fill_in "Costum qm plan", with: @job.costum_qm_plan
-    fill_in "Costumer firstname", with: @job.costumer_firstname
-    fill_in "Costumer id", with: @job.costumer_id_id
-    fill_in "Costumer lastname", with: @job.costumer_lastname
+    fill_in "customer firstname", with: @job.customer_firstname
+    fill_in "customer id", with: @job.customer_id_id
+    fill_in "customer lastname", with: @job.customer_lastname
     check "Intern" if @job.intern
     fill_in "Number of plans a0", with: @job.number_of_plans_a0
     fill_in "Number of plans a1", with: @job.number_of_plans_a1
@@ -41,9 +41,9 @@ class JobsTest < ApplicationSystemTestCase
 
     fill_in "Cost center", with: @job.cost_center
     fill_in "Costum qm plan", with: @job.costum_qm_plan
-    fill_in "Costumer firstname", with: @job.costumer_firstname
-    fill_in "Costumer id", with: @job.costumer_id_id
-    fill_in "Costumer lastname", with: @job.costumer_lastname
+    fill_in "customer firstname", with: @job.customer_firstname
+    fill_in "customer id", with: @job.customer_id_id
+    fill_in "customer lastname", with: @job.customer_lastname
     check "Intern" if @job.intern
     fill_in "Number of plans a0", with: @job.number_of_plans_a0
     fill_in "Number of plans a1", with: @job.number_of_plans_a1