Learn Turkish: Şartnameye göre deneyimini belgelemiş olması büyük bir avantajdır. - According to the specification, his having documented his experience is a big advantage.

The phrase belgelemiş olması uses the perfective noun clause structure from this lesson. If we just said belgelemesi, it would mean 'his documenting' in a general or present sense. By using belgelemiş olması, we emphasize that the action is fully completed in the past: 'his having documented'.

Can you break down the suffixes on the word deneyimini?

Sure! The root is deneyim (experience). First, we add the 3rd-person possessive suffix -i to make it 'his experience'. Then comes the buffer letter -n-, and finally the accusative case suffix -i. The accusative is needed because 'his experience' is the specific direct object of the verb belgelemek (to document).

Why does şartname take the -ye ending?

The postposition göre (according to) always requires the word before it to take the dative case. Since şartname (specification) ends in a vowel, it takes the buffer letter -y- followed by the dative suffix -e, becoming şartnameye.

Is the -dır suffix on avantajdır strictly necessary?