diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..5e59fce
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Joshua Moerman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 6b0e432..ac73941 100644
--- a/README.md
+++ b/README.md
@@ -4,12 +4,24 @@ Yannakakis
 An algorithm to construct an adaptive distinguishing sequence for a mealy
 machine. If it does not exist, a partial sequence will be generated, which is
 still useful for generating a seperating set (in the sense of Lee and
-Yannakakis). The partial leaves will be augmented via the classical
-seperating sequences.
+Yannakakis). The partial leaves will be augmented via ordinary seperating
+sequences. In effect, the resulting test method is an instantiation of the HSI-
+method, which tends towards the DS-method.
+
+Most of the algorithms are found in the directory `lib/` and their usage is best
+illustrated in `src/main.cpp` or `src/methods.cpp`.
+
+Currently states and inputs are encoded internally as integer values (because
+this enables fast indexing). Only for I/O, maps are used to translate between
+integers and strings. To reduce the memory footprint `uint16_t`s are used, as
+the range is big enough for our use cases (`uint8_t` is clearly too small for
+the number of states, but could be used for alphabets).
 
 
 ## Building
 
+The only dependency is boost. In order to build the project, one can use cmake.
+
 ```
 mkdir build
 cd build
@@ -18,8 +30,10 @@ make
 ```
 
 Then every .cpp file in the src directory will be built and generate an
-executable in the build directory. Note that you'll need c++14, but clang in
-Mac OSX will understand that (and if not, you'll have to update Xcode).
+executable in the build directory. Note that you'll need c++14, but clang in Mac
+OSX will understand that (and if not, you'll have to update Xcode). The main
+sourcefile (`src/main.cpp`) can also be built with c++11 (this is tested on some
+commits on both Windows and linux).
 
 
 ## Java
@@ -27,3 +41,8 @@ Mac OSX will understand that (and if not, you'll have to update Xcode).
 For now the java code, which acts as a bridge between LearnLib and this c++ 
 tool, is included here. But it should earn its own repo at some point. Also, my 
 javanese is a bit rusty...
+
+
+## License
+
+See `LICENSE`