diff --git a/spec/factories/rating/rate.rb b/spec/factories/rating/rate.rb
index 5b85595..c4a71a1 100644
--- a/spec/factories/rating/rate.rb
+++ b/spec/factories/rating/rate.rb
@@ -4,7 +4,7 @@ FactoryBot.define do
   factory :rating_rate, class: Rating::Rate do
     value 100
 
-    author   { create :user }
+    author   { create :author }
     resource { create :article }
   end
 end
diff --git a/spec/factories/user.rb b/spec/factories/user.rb
deleted file mode 100644
index 347d708..0000000
--- a/spec/factories/user.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# frozen_string_literal: true
-
-FactoryBot.define do
-  factory :user do
-    sequence(:name) { |i| "User #{i}" }
-  end
-end
diff --git a/spec/models/extension/after_create_spec.rb b/spec/models/extension/after_create_spec.rb
index ce9a38f..cb68339 100644
--- a/spec/models/extension/after_create_spec.rb
+++ b/spec/models/extension/after_create_spec.rb
@@ -3,22 +3,22 @@
 require 'rails_helper'
 
 RSpec.describe Rating::Extension, ':after_create' do
-  context 'with :as as nil' do
-    let!(:user) { create :user }
+  context 'when :as is nil' do
+    let!(:article) { create :article }
 
     it 'creates a rating record with zero values just to be easy to make the count' do
-      rating = Rating::Rating.find_by(resource: user)
+      rating = Rating::Rating.find_by(resource: article)
 
       expect(rating.average).to   eq 0
       expect(rating.estimate).to  eq 0
-      expect(rating.resource).to  eq user
+      expect(rating.resource).to  eq article
       expect(rating.scopeable).to eq nil
       expect(rating.sum).to       eq 0
       expect(rating.total).to     eq 0
     end
   end
 
-  context 'with :as as :author' do
+  context 'when :as is :author' do
     let!(:author) { create :author }
 
     it 'does not creates a rating record' do
diff --git a/spec/models/extension/order_by_rating_spec.rb b/spec/models/extension/order_by_rating_spec.rb
index ccb0170..caa285b 100644
--- a/spec/models/extension/order_by_rating_spec.rb
+++ b/spec/models/extension/order_by_rating_spec.rb
@@ -5,21 +5,21 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, ':order_by_rating' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
   before do
-    create :rating_rate, author: user_1, resource: article_1, value: 100
-    create :rating_rate, author: user_1, resource: article_2, value: 11
-    create :rating_rate, author: user_1, resource: article_3, value: 10
-    create :rating_rate, author: user_2, resource: article_1, value: 1
+    create :rating_rate, author: author_1, resource: article_1, value: 100
+    create :rating_rate, author: author_1, resource: article_2, value: 11
+    create :rating_rate, author: author_1, resource: article_3, value: 10
+    create :rating_rate, author: author_2, resource: article_1, value: 1
 
-    create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1
-    create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2
+    create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1
+    create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2
   end
 
   context 'with default filters' do
@@ -184,12 +184,12 @@ RSpec.describe Rating::Extension, ':order_by_rating' do
 
   context 'with other resource' do
     it 'works' do
-      expect(User.order_by_rating(:total, :desc)).to match_array [user_1, user_2]
+      expect(Author.order_by_rating(:total, :desc)).to match_array [author_1, author_2]
     end
 
     context 'with scope' do
       it 'returns empty since creation has no scope' do
-        expect(User.order_by_rating(:total, :desc, scope: category)).to eq []
+        expect(Author.order_by_rating(:total, :desc, scope: category)).to eq []
       end
     end
   end
diff --git a/spec/models/extension/rate_for_spec.rb b/spec/models/extension/rate_for_spec.rb
index c90bdd2..c3682f5 100644
--- a/spec/models/extension/rate_for_spec.rb
+++ b/spec/models/extension/rate_for_spec.rb
@@ -3,14 +3,14 @@
 require 'rails_helper'
 
 RSpec.describe Rating::Extension, ':rate_for' do
-  let!(:user)    { create :user }
+  let!(:author)  { create :author }
   let!(:article) { create :article }
 
   context 'with no scopeable' do
     it 'delegates to rate object' do
-      expect(Rating::Rate).to receive(:rate_for).with author: user, resource: article, scopeable: nil
+      expect(Rating::Rate).to receive(:rate_for).with author: author, resource: article, scopeable: nil
 
-      user.rate_for article
+      author.rate_for article
     end
   end
 
@@ -18,9 +18,9 @@ RSpec.describe Rating::Extension, ':rate_for' do
     let!(:category) { build :category }
 
     it 'delegates to rate object' do
-      expect(Rating::Rate).to receive(:rate_for).with author: user, resource: article, scopeable: category
+      expect(Rating::Rate).to receive(:rate_for).with author: author, resource: article, scopeable: category
 
-      user.rate_for article, scope: category
+      author.rate_for article, scope: category
     end
   end
 end
diff --git a/spec/models/extension/rate_spec.rb b/spec/models/extension/rate_spec.rb
index 4de2241..1fedbd2 100644
--- a/spec/models/extension/rate_spec.rb
+++ b/spec/models/extension/rate_spec.rb
@@ -3,14 +3,14 @@
 require 'rails_helper'
 
 RSpec.describe Rating::Extension, ':rate' do
-  let!(:user)    { create :user }
+  let!(:author)  { create :author }
   let!(:article) { create :article }
 
   context 'with no scopeable' do
     it 'delegates to rate object' do
-      expect(Rating::Rate).to receive(:create).with author: user, resource: article, scopeable: nil, value: 3
+      expect(Rating::Rate).to receive(:create).with author: author, resource: article, scopeable: nil, value: 3
 
-      user.rate article, 3
+      author.rate article, 3
     end
   end
 
@@ -18,9 +18,9 @@ RSpec.describe Rating::Extension, ':rate' do
     let!(:category) { build :category }
 
     it 'delegates to rate object' do
-      expect(Rating::Rate).to receive(:create).with author: user, resource: article, scopeable: category, value: 3
+      expect(Rating::Rate).to receive(:create).with author: author, resource: article, scopeable: category, value: 3
 
-      user.rate article, 3, scope: category
+      author.rate article, 3, scope: category
     end
   end
 end
diff --git a/spec/models/extension/rated_question_spec.rb b/spec/models/extension/rated_question_spec.rb
index 02b3f61..b30d880 100644
--- a/spec/models/extension/rated_question_spec.rb
+++ b/spec/models/extension/rated_question_spec.rb
@@ -3,20 +3,20 @@
 require 'rails_helper'
 
 RSpec.describe Rating::Extension, ':rated?' do
-  let!(:user)    { create :user }
+  let!(:author)  { create :author }
   let!(:article) { create :article }
 
   context 'with no scopeable' do
     context 'when has no rate for the given resource' do
-      before { allow(user).to receive(:rate_for).with(article, scope: nil) { nil } }
+      before { allow(author).to receive(:rate_for).with(article, scope: nil) { nil } }
 
-      specify { expect(user.rated?(article)).to eq false }
+      specify { expect(author.rated?(article)).to eq false }
     end
 
     context 'when has rate for the given resource' do
-      before { allow(user).to receive(:rate_for).with(article, scope: nil) { double } }
+      before { allow(author).to receive(:rate_for).with(article, scope: nil) { double } }
 
-      specify { expect(user.rated?(article)).to eq true }
+      specify { expect(author.rated?(article)).to eq true }
     end
   end
 
@@ -24,15 +24,15 @@ RSpec.describe Rating::Extension, ':rated?' do
     let!(:category) { build :category }
 
     context 'when has no rate for the given resource' do
-      before { allow(user).to receive(:rate_for).with(article, scope: category) { nil } }
+      before { allow(author).to receive(:rate_for).with(article, scope: category) { nil } }
 
-      specify { expect(user.rated?(article, scope: category)).to eq false }
+      specify { expect(author.rated?(article, scope: category)).to eq false }
     end
 
     context 'when has rate for the given resource' do
-      before { allow(user).to receive(:rate_for).with(article, scope: category) { double } }
+      before { allow(author).to receive(:rate_for).with(article, scope: category) { double } }
 
-      specify { expect(user.rated?(article, scope: category)).to eq true }
+      specify { expect(author.rated?(article, scope: category)).to eq true }
     end
   end
 end
diff --git a/spec/models/extension/rated_records_spec.rb b/spec/models/extension/rated_records_spec.rb
index d18e718..90a0db5 100644
--- a/spec/models/extension/rated_records_spec.rb
+++ b/spec/models/extension/rated_records_spec.rb
@@ -5,22 +5,22 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, '.rated_records' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
-  let!(:rate_1) { create :rating_rate, author: user_1, resource: article_1, value: 100 }
-  let!(:rate_2) { create :rating_rate, author: user_1, resource: article_2, value: 11 }
-  let!(:rate_3) { create :rating_rate, author: user_1, resource: article_3, value: 10 }
-  let!(:rate_4) { create :rating_rate, author: user_2, resource: article_1, value: 1 }
+  let!(:rate_1) { create :rating_rate, author: author_1, resource: article_1, value: 100 }
+  let!(:rate_2) { create :rating_rate, author: author_1, resource: article_2, value: 11 }
+  let!(:rate_3) { create :rating_rate, author: author_1, resource: article_3, value: 10 }
+  let!(:rate_4) { create :rating_rate, author: author_2, resource: article_1, value: 1 }
 
-  let!(:rate_5) { create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1 }
-  let!(:rate_6) { create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2 }
+  let!(:rate_5) { create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1 }
+  let!(:rate_6) { create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2 }
 
   it 'returns all rates that this author gave' do
-    expect(user_1.rated_records).to match_array [rate_1, rate_2, rate_3, rate_5]
+    expect(author_1.rated_records).to match_array [rate_1, rate_2, rate_3, rate_5]
   end
 end
diff --git a/spec/models/extension/rated_spec.rb b/spec/models/extension/rated_spec.rb
index a041097..179e2e4 100644
--- a/spec/models/extension/rated_spec.rb
+++ b/spec/models/extension/rated_spec.rb
@@ -5,42 +5,42 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, ':rated' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
-  let!(:rate_1) { create :rating_rate, author: user_1, resource: article_1, value: 100 }
-  let!(:rate_2) { create :rating_rate, author: user_1, resource: article_2, value: 11 }
-  let!(:rate_3) { create :rating_rate, author: user_1, resource: article_3, value: 10 }
-  let!(:rate_4) { create :rating_rate, author: user_2, resource: article_1, value: 1 }
+  let!(:rate_1) { create :rating_rate, author: author_1, resource: article_1, value: 100 }
+  let!(:rate_2) { create :rating_rate, author: author_1, resource: article_2, value: 11 }
+  let!(:rate_3) { create :rating_rate, author: author_1, resource: article_3, value: 10 }
+  let!(:rate_4) { create :rating_rate, author: author_2, resource: article_1, value: 1 }
 
-  let!(:rate_5) { create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1 }
-  let!(:rate_6) { create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2 }
+  let!(:rate_5) { create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1 }
+  let!(:rate_6) { create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2 }
 
   context 'with no scope' do
     it 'returns rates made by this author' do
-      expect(user_1.rated).to match_array [rate_1, rate_2, rate_3]
+      expect(author_1.rated).to match_array [rate_1, rate_2, rate_3]
     end
   end
 
   context 'with no scope' do
     it 'returns scoped rates made by this author' do
-      expect(user_1.rated(scope: category)).to eq [rate_5]
+      expect(author_1.rated(scope: category)).to eq [rate_5]
     end
   end
 
   context 'when destroy author' do
     before do
-      expect(Rating::Rate.where(author: user_1).count).to eq 4
+      expect(Rating::Rate.where(author: author_1).count).to eq 4
 
-      user_1.destroy!
+      author_1.destroy!
     end
 
     it 'destroys rates of that author' do
-      expect(Rating::Rate.where(author: user_1).count).to eq 0
+      expect(Rating::Rate.where(author: author_1).count).to eq 0
     end
   end
 
diff --git a/spec/models/extension/rates_records_spec.rb b/spec/models/extension/rates_records_spec.rb
index c27ea6f..7a87e7d 100644
--- a/spec/models/extension/rates_records_spec.rb
+++ b/spec/models/extension/rates_records_spec.rb
@@ -5,20 +5,20 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, '.rates_records' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
-  let!(:rate_1) { create :rating_rate, author: user_1, resource: article_1, value: 100 }
-  let!(:rate_2) { create :rating_rate, author: user_1, resource: article_2, value: 11 }
-  let!(:rate_3) { create :rating_rate, author: user_1, resource: article_3, value: 10 }
-  let!(:rate_4) { create :rating_rate, author: user_2, resource: article_1, value: 1 }
+  let!(:rate_1) { create :rating_rate, author: author_1, resource: article_1, value: 100 }
+  let!(:rate_2) { create :rating_rate, author: author_1, resource: article_2, value: 11 }
+  let!(:rate_3) { create :rating_rate, author: author_1, resource: article_3, value: 10 }
+  let!(:rate_4) { create :rating_rate, author: author_2, resource: article_1, value: 1 }
 
-  let!(:rate_5) { create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1 }
-  let!(:rate_6) { create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2 }
+  let!(:rate_5) { create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1 }
+  let!(:rate_6) { create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2 }
 
   it 'returns all rates that this resource received' do
     expect(article_1.rates_records).to match_array [rate_1, rate_4, rate_5, rate_6]
diff --git a/spec/models/extension/rates_spec.rb b/spec/models/extension/rates_spec.rb
index 4aadfcd..0580c89 100644
--- a/spec/models/extension/rates_spec.rb
+++ b/spec/models/extension/rates_spec.rb
@@ -5,20 +5,20 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, ':rates' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
-  let!(:rate_1) { create :rating_rate, author: user_1, resource: article_1, value: 100 }
-  let!(:rate_2) { create :rating_rate, author: user_1, resource: article_2, value: 11 }
-  let!(:rate_3) { create :rating_rate, author: user_1, resource: article_3, value: 10 }
-  let!(:rate_4) { create :rating_rate, author: user_2, resource: article_1, value: 1 }
+  let!(:rate_1) { create :rating_rate, author: author_1, resource: article_1, value: 100 }
+  let!(:rate_2) { create :rating_rate, author: author_1, resource: article_2, value: 11 }
+  let!(:rate_3) { create :rating_rate, author: author_1, resource: article_3, value: 10 }
+  let!(:rate_4) { create :rating_rate, author: author_2, resource: article_1, value: 1 }
 
-  let!(:rate_5) { create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1 }
-  let!(:rate_6) { create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2 }
+  let!(:rate_5) { create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1 }
+  let!(:rate_6) { create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2 }
 
   context 'with no scope' do
     it 'returns rates that this resource received' do
@@ -34,11 +34,11 @@ RSpec.describe Rating::Extension, ':rates' do
 
   context 'when destroy author' do
     it 'destroys rates of that author' do
-      expect(Rating::Rate.where(author: user_1).count).to eq 4
+      expect(Rating::Rate.where(author: author_1).count).to eq 4
 
-      user_1.destroy!
+      author_1.destroy!
 
-      expect(Rating::Rate.where(author: user_1).count).to eq 0
+      expect(Rating::Rate.where(author: author_1).count).to eq 0
     end
   end
 
diff --git a/spec/models/extension/rating_records_spec.rb b/spec/models/extension/rating_records_spec.rb
index f110e26..fefe92b 100644
--- a/spec/models/extension/rating_records_spec.rb
+++ b/spec/models/extension/rating_records_spec.rb
@@ -5,21 +5,21 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, '.rating' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
   before do
-    create :rating_rate, author: user_1, resource: article_1, value: 100
-    create :rating_rate, author: user_1, resource: article_2, value: 11
-    create :rating_rate, author: user_1, resource: article_3, value: 10
-    create :rating_rate, author: user_2, resource: article_1, value: 1
+    create :rating_rate, author: author_1, resource: article_1, value: 100
+    create :rating_rate, author: author_1, resource: article_2, value: 11
+    create :rating_rate, author: author_1, resource: article_3, value: 10
+    create :rating_rate, author: author_2, resource: article_1, value: 1
 
-    create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1
-    create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2
+    create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1
+    create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2
   end
 
   it 'returns all rating of this resource' do
diff --git a/spec/models/extension/rating_spec.rb b/spec/models/extension/rating_spec.rb
index bfc6ffe..505d13b 100644
--- a/spec/models/extension/rating_spec.rb
+++ b/spec/models/extension/rating_spec.rb
@@ -5,20 +5,20 @@ require 'rails_helper'
 RSpec.describe Rating::Extension, '.rating' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
-  let!(:rate_1) { create :rating_rate, author: user_1, resource: article_1, value: 100 }
-  let!(:rate_2) { create :rating_rate, author: user_1, resource: article_2, value: 11 }
-  let!(:rate_3) { create :rating_rate, author: user_1, resource: article_3, value: 10 }
-  let!(:rate_4) { create :rating_rate, author: user_2, resource: article_1, value: 1 }
+  let!(:rate_1) { create :rating_rate, author: author_1, resource: article_1, value: 100 }
+  let!(:rate_2) { create :rating_rate, author: author_1, resource: article_2, value: 11 }
+  let!(:rate_3) { create :rating_rate, author: author_1, resource: article_3, value: 10 }
+  let!(:rate_4) { create :rating_rate, author: author_2, resource: article_1, value: 1 }
 
-  let!(:rate_5) { create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1 }
-  let!(:rate_6) { create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2 }
+  let!(:rate_5) { create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1 }
+  let!(:rate_6) { create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2 }
 
   context 'with no scope' do
     it 'returns rating record' do
@@ -36,7 +36,7 @@ RSpec.describe Rating::Extension, '.rating' do
     it 'does not destroy resource rating' do
       expect(Rating::Rating.where(resource: article_1).count).to eq 2
 
-      user_1.destroy!
+      author_1.destroy!
 
       expect(Rating::Rating.where(resource: article_1).count).to eq 2
     end
diff --git a/spec/models/rate/create_spec.rb b/spec/models/rate/create_spec.rb
index 49e399a..5e94611 100644
--- a/spec/models/rate/create_spec.rb
+++ b/spec/models/rate/create_spec.rb
@@ -3,17 +3,17 @@
 require 'rails_helper'
 
 RSpec.describe Rating::Rate, ':create' do
-  let!(:user)    { create :user }
+  let!(:author)  { create :author }
   let!(:article) { create :article }
 
   context 'with no scopeable' do
-    before { create :rating_rate, author: user, resource: article, value: 3 }
+    before { create :rating_rate, author: author, resource: article, value: 3 }
 
     context 'when rate does not exist yet' do
       it 'creates a rate entry' do
         rate = described_class.last
 
-        expect(rate.author).to   eq user
+        expect(rate.author).to   eq author
         expect(rate.resource).to eq article
         expect(rate.value).to    eq 3
       end
@@ -30,24 +30,24 @@ RSpec.describe Rating::Rate, ':create' do
     end
 
     context 'when rate already exists' do
-      let!(:user_2) { create :user }
+      let!(:author_2) { create :author }
 
-      before { create :rating_rate, author: user_2, resource: article, value: 4 }
+      before { create :rating_rate, author: author_2, resource: article, value: 4 }
 
       it 'creates one more rate entry' do
-        rates = described_class.where(author: [user, user_2]).order('created_at asc')
+        rates = described_class.where(author: [author, author_2]).order('created_at asc')
 
         expect(rates.size).to eq 2
 
         rate = rates[0]
 
-        expect(rate.author).to   eq user
+        expect(rate.author).to   eq author
         expect(rate.resource).to eq article
         expect(rate.value).to    eq 3
 
         rate = rates[1]
 
-        expect(rate.author).to   eq user_2
+        expect(rate.author).to   eq author_2
         expect(rate.resource).to eq article
         expect(rate.value).to    eq 4
       end
@@ -67,13 +67,13 @@ RSpec.describe Rating::Rate, ':create' do
   context 'with scopeable' do
     let!(:category) { create :category }
 
-    before { create :rating_rate, author: user, resource: article, scopeable: category, value: 3 }
+    before { create :rating_rate, author: author, resource: article, scopeable: category, value: 3 }
 
     context 'when rate does not exist yet' do
       it 'creates a rate entry' do
         rate = described_class.last
 
-        expect(rate.author).to    eq user
+        expect(rate.author).to    eq author
         expect(rate.resource).to  eq article
         expect(rate.scopeable).to eq category
         expect(rate.value).to     eq 3
@@ -92,25 +92,25 @@ RSpec.describe Rating::Rate, ':create' do
     end
 
     context 'when rate already exists' do
-      let!(:user_2) { create :user }
+      let!(:author_2) { create :author }
 
-      before { create :rating_rate, author: user_2, resource: article, scopeable: category, value: 4 }
+      before { create :rating_rate, author: author_2, resource: article, scopeable: category, value: 4 }
 
       it 'creates one more rate entry' do
-        rates = described_class.where(author: [user, user_2]).order('created_at asc')
+        rates = described_class.where(author: [author, author_2]).order('created_at asc')
 
         expect(rates.size).to eq 2
 
         rate = rates[0]
 
-        expect(rate.author).to    eq user
+        expect(rate.author).to    eq author
         expect(rate.resource).to  eq article
         expect(rate.scopeable).to eq category
         expect(rate.value).to     eq 3
 
         rate = rates[1]
 
-        expect(rate.author).to    eq user_2
+        expect(rate.author).to    eq author_2
         expect(rate.resource).to  eq article
         expect(rate.scopeable).to eq category
         expect(rate.value).to     eq 4
diff --git a/spec/models/rate/rate_for_spec.rb b/spec/models/rate/rate_for_spec.rb
index 2bcf779..fb8cb69 100644
--- a/spec/models/rate/rate_for_spec.rb
+++ b/spec/models/rate/rate_for_spec.rb
@@ -3,19 +3,19 @@
 require 'rails_helper'
 
 RSpec.describe Rating::Rate, ':rate_for' do
-  let!(:user)    { create :user }
+  let!(:author)  { create :author }
   let!(:article) { create :article }
 
   context 'with no scopeable' do
     context 'when rate does not exist' do
-      specify { expect(described_class.rate_for(author: user, resource: article)).to eq nil }
+      specify { expect(described_class.rate_for(author: author, resource: article)).to eq nil }
     end
 
     context 'when rate does not exist' do
-      before { described_class.create author: user, resource: article, value: 3 }
+      before { described_class.create author: author, resource: article, value: 3 }
 
       it 'returns the record' do
-        expect(described_class.rate_for(author: user, resource: article)).to eq described_class.last
+        expect(described_class.rate_for(author: author, resource: article)).to eq described_class.last
       end
     end
   end
@@ -24,14 +24,14 @@ RSpec.describe Rating::Rate, ':rate_for' do
     let!(:category) { create :category }
 
     context 'when rate does not exist' do
-      specify { expect(described_class.rate_for(author: user, resource: article, scopeable: category)).to eq nil }
+      specify { expect(described_class.rate_for(author: author, resource: article, scopeable: category)).to eq nil }
     end
 
     context 'when rate does not exist' do
-      before { described_class.create author: user, resource: article, scopeable: category, value: 3 }
+      before { described_class.create author: author, resource: article, scopeable: category, value: 3 }
 
       it 'returns the record' do
-        query = described_class.rate_for(author: user, resource: article, scopeable: category)
+        query = described_class.rate_for(author: author, resource: article, scopeable: category)
 
         expect(query).to eq described_class.last
       end
diff --git a/spec/models/rating/averager_data_spec.rb b/spec/models/rating/averager_data_spec.rb
index 0bc77c2..f6f50bb 100644
--- a/spec/models/rating/averager_data_spec.rb
+++ b/spec/models/rating/averager_data_spec.rb
@@ -5,21 +5,21 @@ require 'rails_helper'
 RSpec.describe Rating::Rating, ':averager_data' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
   before do
-    create :rating_rate, author: user_1, resource: article_1, value: 100
-    create :rating_rate, author: user_1, resource: article_2, value: 11
-    create :rating_rate, author: user_1, resource: article_3, value: 10
-    create :rating_rate, author: user_2, resource: article_1, value: 1
+    create :rating_rate, author: author_1, resource: article_1, value: 100
+    create :rating_rate, author: author_1, resource: article_2, value: 11
+    create :rating_rate, author: author_1, resource: article_3, value: 10
+    create :rating_rate, author: author_2, resource: article_1, value: 1
 
-    create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1
-    create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2
+    create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1
+    create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2
   end
 
   context 'with no scopeable' do
diff --git a/spec/models/rating/data_spec.rb b/spec/models/rating/data_spec.rb
index edacb80..bc12225 100644
--- a/spec/models/rating/data_spec.rb
+++ b/spec/models/rating/data_spec.rb
@@ -5,21 +5,21 @@ require 'rails_helper'
 RSpec.describe Rating::Rating, ':data' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
   before do
-    create :rating_rate, author: user_1, resource: article_1, value: 100
-    create :rating_rate, author: user_1, resource: article_2, value: 11
-    create :rating_rate, author: user_1, resource: article_3, value: 10
-    create :rating_rate, author: user_2, resource: article_1, value: 1
+    create :rating_rate, author: author_1, resource: article_1, value: 100
+    create :rating_rate, author: author_1, resource: article_2, value: 11
+    create :rating_rate, author: author_1, resource: article_3, value: 10
+    create :rating_rate, author: author_2, resource: article_1, value: 1
 
-    create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1
-    create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2
+    create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1
+    create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2
   end
 
   context 'with no scopeable' do
diff --git a/spec/models/rating/update_rating_spec.rb b/spec/models/rating/update_rating_spec.rb
index 8e31981..5db016e 100644
--- a/spec/models/rating/update_rating_spec.rb
+++ b/spec/models/rating/update_rating_spec.rb
@@ -5,21 +5,21 @@ require 'rails_helper'
 RSpec.describe Rating::Rating, ':update_rating' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
   before do
-    create :rating_rate, author: user_1, resource: article_1, value: 100
-    create :rating_rate, author: user_1, resource: article_2, value: 11
-    create :rating_rate, author: user_1, resource: article_3, value: 10
-    create :rating_rate, author: user_2, resource: article_1, value: 1
+    create :rating_rate, author: author_1, resource: article_1, value: 100
+    create :rating_rate, author: author_1, resource: article_2, value: 11
+    create :rating_rate, author: author_1, resource: article_3, value: 10
+    create :rating_rate, author: author_2, resource: article_1, value: 1
 
-    create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1
-    create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2
+    create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1
+    create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2
   end
 
   context 'with no scopeable' do
diff --git a/spec/models/rating/values_data_spec.rb b/spec/models/rating/values_data_spec.rb
index efe3a57..d79119e 100644
--- a/spec/models/rating/values_data_spec.rb
+++ b/spec/models/rating/values_data_spec.rb
@@ -5,21 +5,21 @@ require 'rails_helper'
 RSpec.describe Rating::Rating, ':values_data' do
   let!(:category) { create :category }
 
-  let!(:user_1) { create :user }
-  let!(:user_2) { create :user }
+  let!(:author_1) { create :author }
+  let!(:author_2) { create :author }
 
   let!(:article_1) { create :article }
   let!(:article_2) { create :article }
   let!(:article_3) { create :article }
 
   before do
-    create :rating_rate, author: user_1, resource: article_1, value: 100
-    create :rating_rate, author: user_1, resource: article_2, value: 11
-    create :rating_rate, author: user_1, resource: article_3, value: 10
-    create :rating_rate, author: user_2, resource: article_1, value: 4
+    create :rating_rate, author: author_1, resource: article_1, value: 100
+    create :rating_rate, author: author_1, resource: article_2, value: 11
+    create :rating_rate, author: author_1, resource: article_3, value: 10
+    create :rating_rate, author: author_2, resource: article_1, value: 4
 
-    create :rating_rate, author: user_1, resource: article_1, scopeable: category, value: 1
-    create :rating_rate, author: user_2, resource: article_1, scopeable: category, value: 2
+    create :rating_rate, author: author_1, resource: article_1, scopeable: category, value: 1
+    create :rating_rate, author: author_2, resource: article_1, scopeable: category, value: 2
   end
 
   context 'with no scopeable' do
diff --git a/spec/support/db/migrate/create_users_table.rb b/spec/support/db/migrate/create_users_table.rb
deleted file mode 100644
index f3e4835..0000000
--- a/spec/support/db/migrate/create_users_table.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-class CreateUsersTable < ActiveRecord::Migration[5.0]
-  def change
-    create_table :users do |t|
-      t.string :name, null: false
-    end
-  end
-end
diff --git a/spec/support/migrate.rb b/spec/support/migrate.rb
index 9f904fc..33937e7 100644
--- a/spec/support/migrate.rb
+++ b/spec/support/migrate.rb
@@ -8,4 +8,3 @@ CreateArticlesTable.new.change
 CreateAuthorsTable.new.change
 CreateCategoriesTable.new.change
 CreateRatingTables.new.change
-CreateUsersTable.new.change
diff --git a/spec/support/models/user.rb b/spec/support/models/user.rb
deleted file mode 100644
index a92ffd2..0000000
--- a/spec/support/models/user.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-# frozen_string_literal: true
-
-class User < ::ActiveRecord::Base
-  rating
-end