first def of problem

src/model/problem.h

 #ifndef SRC_PROBLEM_H_
 #define SRC_PROBLEM_H_
 
-// USE THIS FILE TO MODELISE THE PB, i.e. how many courses are available, etc.
+#include <vector>
+
+#include "course.h"
+#include "competency.h"
+
+/**
+ * Model of the CSDVP (Constraint Satisfaction Decaying Variables Problem).
+ * 
+ * How many compentecies are available, how many courses, etc...
+ */ 
+
+class CSDVP
+{
+    private:
+        int _id;
+
+        int _quantityAvailableCompetencies;
+        std::vector<Competency> _availableCompentecies;
+
+        int _quantityAvailableCourses;
+        std::vector<Course> _availableCourses;
+
+        /// ECTS values, defining the intervale [_minimal,_maximal] for random
+        int _minimalECTSValue;
+        int _maximalECTSValue;
+
+        int _minimalCoursesByTimeFrame;
+        int _maximalCoursesByTimeFrame;
+
+        int _numberOfTimeFrame;
+        std::vector<int> _timeFrames;
+
+        ///@todo implements a decay politics
+        //DecayPolitics 
+
+        // Static
+        static int PROBLEM_COUNTER;
+        static int assignID();
+
+    public:
+        CSDVP();
+};
+
 
 #endif // SRC_PROBLEM_H_
\ No newline at end of file