diff --git a/appDefinition.json b/appDefinition.json
new file mode 100644
index 0000000..13ad9e0
--- /dev/null
+++ b/appDefinition.json
@@ -0,0 +1,22 @@
+{
+  "scriptLanguage" : "MATLAB",
+  "executableScriptName" : "crosscorr.m",
+  "functionName" : "crosscorr",
+  "inputFiles" : [ {
+    "dataType" : "time_series",
+    "multiplicity" : {
+      "minCount" : 1,
+      "maxCount" : 1
+    }
+  }, {
+    "dataType" : "time_series",
+    "multiplicity" : {
+      "minCount" : 1,
+      "maxCount" : 1
+    }
+  } ],
+  "inputParameters" : [ "INTEGER", "DOUBLE" ],
+  "outputs" : [ ],
+  "requiredTools" : [ "matlab" ],
+  "requiredComputationResources" : { }
+}
\ No newline at end of file