You have been appointed as project manager for a new project. The project sponsor has an urgent meeting in an hour for which he requests from you a preliminary, coarse effort estimate.
You have already drafted a project organization and estimated the project roles required (U: user; S: specialist) as follows:

Subproject management will be assumed by the user or the specialist and is included in the required project roles.
From the project plan you deduce the following project phase durations:

• Concept 3 months
• Development 6 months
• Acceptance test & deployment 1 month

What effort estimate do you give to the project sponsor?