diff --git a/AlgebraicDataflowArchitectureModel/models/DataStore.model b/AlgebraicDataflowArchitectureModel/models/DataStore.model
index 3ad587c..7a5c17a 100644
--- a/AlgebraicDataflowArchitectureModel/models/DataStore.model
+++ b/AlgebraicDataflowArchitectureModel/models/DataStore.model
@@ -1,11 +1,21 @@
 init {
-	screen := {
-					"widgets": {
-										"001": {"type": "button", "text": "a", "state": 0}, 
-										"002": {"type": "textInput", "text": "", "state": 0}
-									}, 
-					"layout": true
-				}
+	variables := {
+		"a" : {
+			"target": "w1",
+			"source": "a1",
+			"value": "_"
+		},
+		"b": {
+			"target": "w3",
+			"source": "w2",
+			"value": "_"
+		}
+	}
+	datastore := {
+		"accounts": {
+			"a1": "hello"
+		}
+	}
 }
 
 native channel ScreenUpdate {
@@ -40,11 +50,45 @@
 	out screen.widgets(widgets: Map, addTextInput(wid: Str)) = insert(widgets, wid, {"type": "textInput", "text": "", "state": 0})
 }
 
-
 channel signUp{
 	out datastore.accounts(accounts: Map, signUp(id, name)) = insert(accounts, id, name)
 }
 
-channel createBook {
-	out datastore.books(books: Map, createBook(id, title, aid)) = insert(books, id, {"title": title, "aid": aid})
-}
\ No newline at end of file
+channel changeName(aid: Str) {
+	out datastore.accounts.{aid}(curName: Str, changeName(newName)) = newName
+}
+
+channel setTarget {
+	out variables.a.target(curTarget: Str, setTarget(newTarget: Str)) = newTarget
+}
+
+channel setSource {
+	out variables.a.source(curSource: Str, setSource(newSource: str)) = newSource
+}
+
+channel setTargetB {
+	out variables.b.target(curTarget: Str, setTarget(newTarget: Str)) = newTarget
+}
+
+channel setSourceB {
+	out variables.b.source(curSource: Str, setSource(newSource: str)) = newSource
+}
+
+channel setValue {
+	in variables.a.source(curSource: Str, setValue(nextSource, nextName)) = nextSource
+	in datastore.accounts.{nextSource}(curName, setValue(nextSource, nextName)) = nextName
+	out variables.a.value(curValue: Str, setValue(nextSource, nextName)) = nextName
+}
+
+channel setButtonText {
+	in variables.a.target(curTarget: Str, setButtonText(nextTarget, nextText)) = nextTarget
+	in variables.a.value(curText: Str, setButtonText(nextTarget, nextText)) = nextText
+	out screen.widgets.{nextTarget}.text(curText, setButtonText(nextTarget, nextText)) = nextText
+}
+
+channel setInputTextValue { 
+	in variables.b.source(curSource: Str, setValue2(nextSource, nextTarget, nextValue)) = nextSource
+	in variables.b.target(curTarget: Str, setValue2(nextTarget, nextTarget, nextValue)) = nextTarget
+	in screen.widgets.{nextSource}.text(curValue: Str, setValue2(nextSource, nextTarget, nextValue)) = nextValue
+	out screen.widgets.{nextTarget}.text(curText, setValue2(nextTarget, nextTarget, nextValue)) = nextValue
+}