gss.getElements().add(p6);
gss.getElements().add(si1);
gss.getElements().add(si2);
Decomposition decomposition1 = GSSFactory.eINSTANCE.createDecomposition();
decomposition1.setSource(p2);
decomposition1.setTarget(p1);
Decomposition decomposition2 = GSSFactory.eINSTANCE.createDecomposition();
decomposition2.setSource(p3);
decomposition2.setTarget(p1);
Decomposition decomposition3 = GSSFactory.eINSTANCE.createDecomposition();
decomposition3.setSource(p3);
decomposition3.setTarget(p4);
Decomposition decomposition4 = GSSFactory.eINSTANCE.createDecomposition();
decomposition4.setSource(p5);
decomposition4.setTarget(p4);
Decomposition decomposition5 = GSSFactory.eINSTANCE.createDecomposition();
decomposition5.setSource(p6);
decomposition5.setTarget(p4);
Impact impact1 = GSSFactory.eINSTANCE.createImpact();
impact1.setSource(p1);
impact1.setTarget(g1);