Select purpose of the ship. Doesn't have any direct effect on the ship's statistics, cost, etc but guides the design of the ship through the later stages

Select astrogation systems

Select communication and sensor systems

Select Weapons and Defenses

Select Specialized equipment (mining, cargo, etc)

Determine cargo bay size

Determine crew/passenger size

Select crew and passenger accommodations

Determine life support requirements

Determine initial computer requirements

Determine Power requirements

Determine hull type

Determine hull size

Determine ship's total mass

Pick engine type, number and sizes

Finalize computer requirements and verify power requirements and size

Calculate final cost

Determine ADF, DCR, etc