Wash the potatoes and cook in boiling water for about 15 minutes. Boil eggs hard for about 10 minutes, drain, quench and peel. Clean, wash and cut the beans into pieces. Cook in boiling salted water for about 15 minutes.
Peel and quarter the onion and cut it into slices. Clean, wash and cut the salad into strips. Drain tuna and pluck into pieces. Clean, wash, halve and slice the tomatoes.
Drain the artichoke hearts and cut in half. Wash and clean the cucumber, halve it lengthwise and cut into slices. Drain potatoes, quench, peel and slice. For the sauce, wash basil and parsley, dab dry and chop, except for some basil.
Season vinegar with salt and pepper. Whip the oil into it. Fold in basil and parsley. Cut the eggs into eight pieces. Mix all prepared salad ingredients and olives with the vinaigrette. Garnish with basil.