I was working as a solution architect and consultant for a project in one of largest banks in the country through one of the international IT consultancy companies. My project allocation contact ended few days ago. I asked the product owner in client side if I could have an experience certificate or success story for the project that I worked for, which he didn't mind to give. He asked me to prepare it and he will sign it.
I was one of the first leads for the project I worked on. After 10 months, I left the project in a stable working state. Even though lots of work still needed, and development will go for a long way ahead, but it is considered a successful project for all parties and stakeholders.
I'd like to know, what is the best type of letter I can get: experience letter or success story? and what can I include in that certificate? shall I focus on the project or on my role within that project?