diff --git a/src/main/java/ic/doc/WeatherForecast.java b/src/main/java/ic/doc/WeatherForecast.java
new file mode 100644
index 0000000..6b6256a
--- /dev/null
+++ b/src/main/java/ic/doc/WeatherForecast.java
@@ -0,0 +1,7 @@
+package ic.doc;
+
+public interface WeatherForecast {
+  String summary();
+
+  int temperature();
+}
diff --git a/src/main/java/ic/doc/WeatherForecaster.java b/src/main/java/ic/doc/WeatherForecaster.java
new file mode 100644
index 0000000..b48c74e
--- /dev/null
+++ b/src/main/java/ic/doc/WeatherForecaster.java
@@ -0,0 +1,5 @@
+package ic.doc;
+
+public interface WeatherForecaster {
+    WeatherForecast forecastFor(WeatherRegion region, Weekday day);
+}
\ No newline at end of file
diff --git a/src/main/java/ic/doc/WeatherRegion.java b/src/main/java/ic/doc/WeatherRegion.java
new file mode 100644
index 0000000..4123336
--- /dev/null
+++ b/src/main/java/ic/doc/WeatherRegion.java
@@ -0,0 +1,13 @@
+package ic.doc;
+
+public enum WeatherRegion {
+  BIRMINGHAM,
+  EDINBURGH,
+  GLASGOW,
+  LONDON,
+  MANCHESTER,
+  NORTH_ENGLAND,
+  SOUTH_WEST_ENGLAND,
+  SOUTH_EAST_ENGLAND,
+  WALES
+}
diff --git a/src/main/java/ic/doc/Weekday.java b/src/main/java/ic/doc/Weekday.java
new file mode 100644
index 0000000..c6a13a7
--- /dev/null
+++ b/src/main/java/ic/doc/Weekday.java
@@ -0,0 +1,11 @@
+package ic.doc;
+
+public enum Weekday {
+  MONDAY,
+  TUESDAY,
+  WEDNESDAY,
+  THURSDAY,
+  FRIDAY,
+  SATURDAY,
+  SUNDAY
+}