Proposal and observing preparation for ALMA

A number of tools exist to aid in the preparation of proposals and observations for large ground and space-based observatories (VLT, Gemini, HST being examples). These tools have transformed the way in which astronomers use large telescopes. The ALMA telescope has a strong need for such a tool, but its scientific and technical requirements, and the nature of the telescope, provide some novel challenges. In addition to the common Phase I (Proposal) and Phase II (Observing) preparation the tool must support the needs of the novice alongside the needs of those who are expert in millimetre/sub-millimetre aperture synthesis astronomy. We must also provide support for the reviewing process, and must interface with and use the technical architecture underpinning the design of the ALMA Software System. In this paper we describe our approach to meeting these challenges.