How would you convince a computer of your ship that going into battle was a good idea?
A self-aware computer may modify the ships transponder coding to broadcast a skip jump signal or a copied pirate signal.
Is your ships computer on the regular maintenance schedule? Would it be annoyed if you let the regular maintenance slip a bit behind schedule?
How would your Vargr programmed ships computer react when you tell it that repainting the ship to Vargr dazzle standards is not going to happen?
"Teach it phenomenology."
AI has personality. In other words, it is a person. This applies to a positronic computer as much as a brain that's been transplanted into a ship.
* It will act like any other player character or non-player character.
* It has self-determination.
* It has needs, desires, and goals.
You might have to pay it a salary based on its job. Or some form of compensation it's interested in.
Treating a ship like a slave is probably always a bad idea.
Same goes for any robot capable of replacing crewmembers.
Consider the Model/2 computer. If it were an NPC, it would look like this:
* able to perform any two starship skills at the same time
* task asset equal to TL
* requires 2 tons of space on the ship
* "salary" = MCr5 over 40 years (rolled into the mortgage)
As a task resolver, it's not really a decider, so you have to tell it what to do and it does it. At high TLs, it can do it well.
Now consider a robot crew. Robots which are
capable like an NPC, are like this:
* has a skills list
* typically does one skill at a time, like other NPCs
* negotiates compensation
Compensation is interesting, since theoretically it might not need personal space. If it's a humanoid robot, though, or if it has a humanoid brain, then its psychology definitely will require personal space. It's likely to prefer payment in credits as opposed to anything else, just like any NPC, although just list any NPC this can vary by personality.
Robots which are incapable of filling an NPC role, meanwhile, are mechanisms for menial, dangerous, undesirable, or low-paying jobs. These are less likely to act like an NPC -or- a ship's computer. They'll be more like Roombas. You pay cash for them, and you own them as appliances. A Multi-Use Labor Element (M.U.L.E.).