Requirements.md

@@ -3,4 +3,26 @@ List all general requirements for the configuration DSL.
 - There exist global feature selections (CPP_OPTIONS) where some have constraints to packages and other features.
 - There exist package specific features (**pkg**_OPTIONS:H)
 - Packages may depend on other packages
+- In the experiment directory there are two subdirectories containing configuration files:
+
+| Directory | Typical configuration files |
+| ------ | ------ |
+| Code | SIZE.h, CPP_OPTIONS.h, package specific SIZE and OPTIONS files  |
+| data | data files, data.pkg |
+
+- SIZE.h — information about underlying computational grod
+- package.conf — optional file, where we declare packages used in experiment 
+- CPP_OPTIONS — contains list of preprocessor options that can enable or disable some simulation aspects
+- data  files — contain experiment configuration parameters
+- data.pkg — optional file, where we enable the usage of additional packages if needed.
+
+1. The DSL must be designed for modelers and model users.
+2. As modelers do not use classic IDEs, the DSL must be usable with and embedded in
+their standard tool chain, i.e., usable with Vi and Emacs, and integration in Jupyter.
+3. The DSL must generate configuration files.
+4. The DSL must support Generators for different models.
+5. Since the models can be reused, the DSL must provide import functionality.
+6. The DSL must not allow specification of invalid parameters
+7. The DSL must support specification of units of measurement
+