diff --git a/app/models/configuration.rb b/app/models/configuration.rb
--- a/app/models/configuration.rb
+++ b/app/models/configuration.rb
@@ -1,3 +1,5 @@
+require 'yaml'
+
 #
 # This class also contains various login of the system.
 #
@@ -6,6 +8,7 @@
   SYSTEM_MODE_CONF_KEY = 'system.mode'
 
   @@configurations = nil
+  @@task_grading_info = nil
 
   def self.get(key)
     if @@configurations == nil
@@ -47,6 +50,10 @@
     return true
   end
 
+  def self.show_grading_result
+    return (get(SYSTEM_MODE_CONF_KEY)=='analysis')
+  end
+
   def self.allow_test_request(user)
     mode = get(SYSTEM_MODE_CONF_KEY)
     if (mode=='contest') 
@@ -55,6 +62,13 @@
     return false if mode=='analysis'
     return true
   end
+
+  def self.task_grading_info
+    if @@task_grading_info==nil
+      read_grading_info
+    end
+    return @@task_grading_info
+  end
   
   protected
   def self.read_config
@@ -74,5 +88,11 @@
       end
     end
   end
+
+  def self.read_grading_info
+    f = File.open(TASK_GRADING_INFO_FILENAME)
+    @@task_grading_info = YAML.load(f)
+    f.close
+  end
   
 end