diff --git a/Exercise-Configuration.md b/Exercise-Configuration.md
index 2a7a02f..23937ca 100644
--- a/Exercise-Configuration.md
+++ b/Exercise-Configuration.md
@@ -10,24 +10,195 @@ Represents basic exercise configuration which connects all things together. For
 
 ### Backend Format
 
+Stored in yaml.
+
 Mandatory items are bold, optional italic, description of items follows:
 
-* ...
+* **environments** - ...
+* **tests** - ...
+    * **${test identification}** - ...
+        * **pipelines** - ...
+            * **${pipeline identification}** - ...
+                * **variables** - ...
+                    * **${variable identification}** - ...
+                        * **type** - ...
+                        * **value** - ...
+        * **environments** - ...
+            * **${environment identification}** - ...
+                * **pipelines** - ...
+                    * **${pipeline identification}** - ...
+                        * **variables** - ...
+                            * **${variable identification}** - ...
+                                * **type** - ...
+                                * **value** - ...
 
 Example:
 
 ```
+environments:
+  - java8
+  - cpp11
+tests:
+  "Test 1":
+    pipelines:
+      "pipeline1":
+        variables:
+          varA:
+            type: string
+            value: valA
+    environments:
+      java8:
+        pipelines:
+          "pipelineJava":
+            variables:
+              varJava:
+                type: string
+                value: valJava
+      cpp11: []
+  "Test 2":
+    pipelines:
+      "pipeline2":
+        variables:
+          varB:
+            type: file
+            value: valB
+    environments:
+      cpp11:
+        pipelines:
+          "pipeline2":
+            variables:
+              varCpp:
+                type: file
+                value: valCpp
 ```
 
 ### Frontend Format
 
+Returned as JSON.
+
 Mandatory items are bold, optional italic, description of items follows:
 
-* ...
+* **${implicit list of environments}** - ...
+    * **name** - ...
+    * **tests** - ...
+        * **name** - ...
+        * **pipelines** - ...
+            * **name** - ...
+            * _variables_ - ...
+                * **name** - ...
+                * **type** - ...
+                * **value** - ...
 
 Example:
 
 ```
+[
+  {
+    "name":"default",
+    "tests":[
+      {
+        "name":"Test 1",
+        "pipelines":[
+          {
+            "name":"pipeline1",
+            "variables":[
+              {
+                "name":"varA",
+                "type":"string",
+                "value":"valA"
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name":"Test 2",
+        "pipelines":[
+          {
+            "name":"pipeline2",
+            "variables":[
+              {
+                "name":"varB",
+                "type":"file",
+                "value":"valB"
+              }
+            ]
+          }
+        ]
+      }
+    ]
+  },
+  {
+    "name":"java8",
+    "tests":[
+      {
+        "name":"Test 1",
+        "pipelines":[
+          {
+            "name":"pipelineJava",
+            "variables":[
+              {
+                "name":"varJava",
+                "type":"string",
+                "value":"valJava"
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name":"Test 2",
+        "pipelines":[
+          {
+            "name":"pipeline2",
+            "variables":[
+              {
+                "name":"varB",
+                "type":"file",
+                "value":"valB"
+              }
+            ]
+          }
+        ]
+      }
+    ]
+  },
+  {
+    "name":"cpp11",
+    "tests":[
+      {
+        "name":"Test 1",
+        "pipelines":[
+          {
+            "name":"pipeline1",
+            "variables":[
+              {
+                "name":"varA",
+                "type":"string",
+                "value":"valA"
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name":"Test 2",
+        "pipelines":[
+          {
+            "name":"pipeline2",
+            "variables":[
+              {
+                "name":"varCpp",
+                "type":"file",
+                "value":"valCpp"
+              }
+            ]
+          }
+        ]
+      }
+    ]
+  }
+]
 ```
 
 ## Pipeline
@@ -45,11 +216,21 @@ Example:
 
 Mandatory items are bold, optional italic, description of items follows:
 
-* ...
+* **${box identification}** - ...
+    * _wall-time_ - ...
+    * _memory_ - ...
+    * _parallel_ - ...
 
 Example:
 
 ```
+box-id-1:
+  wall-time: 5
+  memory: 50
+  parallel: 500
+box-id-2:
+  wall-time: 6
+  memory: 60
 ```
 
 ## RuntimeConfig