Scope

Probably the first technical thing you should do is get an idea of what is in scope for the first release. Scoping is about knowing what you want to deliver in some duration of an iteration. You really wnat to make this as short as 1 - 2 weeks per minor version. The initial period won't be like that as you are still fully understanding what you are trying to create, but after this period (typically the first month) you should get to minor releases and many iterations.

The scoping document outlines the overall intentions of a full major iteration and the current release points. You may have many minor scoping documents within each release, but it keeps everyone (even it it's just yourself!) on track.

The key components are :

1. Overview
2. Major Release
3. Current
Release
4. Schedule
5. Outputs
6. Next
Steps
7. References

You can download a template for a scoping document from here or you can download from the "Templates" link on the right.