• Purpose
• Objectives
• Activities
• Outcome/Deliverables
• Other artifacts

Elaboration

The ``The Rational Unified Process, An Introduction''[9], specifies the following purpose, objectives, activities, and outcome from an elaboration phase.

Purpose

• Analyze the problem domain.
• Establish a sound architecturla foundation.
• Develop the project plan.
• Eliminate the highest-risk elements.

Objectives

• Define, validate, and baseline the architecture.
• Baseline the vision.
• Baseline a plan for the construction phase.
• Demonstrate that the baseline architecture will support the vision for a reasonable cost in a reasonable time, or not.

Activities

• The vision is elaborated.
• The process, infrastructure, and development environment are elaborated.
• Processes, tools, and automation support are put into place.
• The architecture is elaborated and the components are selected.

Outcome/Deliverables

• An 80% complete use-case model has been developed.
• Supplementary requirements are documented.
• A software architecture description is created.
• An executable architectural prototype is created.
• A revised risk list and business case are created.
• A development plan for the overall project is created.
• An updated development case is created, specifying the process to be used.

Other artifacts

• Construction plan.
• Software prototypes.
• Risk identification and management plan.
• A test plan.
• A data dictionary.
• A preliminary user manual.