There are very few (if any!) pure technology projects.
Scope and requirements - Department vs. Company wide. Operational, Tactical, or Strategic. Regulatory? Real Time, Batch, Windows or Mainframe. Impact to business or people if problems?
Budgetary or Rough Order of Magnitude? Fixed Price? Time and Material? Even a ‘rolling wave’ approach requires an up-front estimate.
Is this for an enhancment or new development?
Do we have people that know the business or the applications?