The spiral development model is a lifecycle model that
is an iterative process for the development of a system
specification, either as a complete specification, or as a specification
of an increment within an evolutionary acquisition model. A simple
view of the spiral development model would see developers
move through a spiral of requirements elicitation/generation, requirements analysis and
negotiation, requirements documentation and requirements validation until they were sure
that they had an adequate representation of the functional architecture
and could produce a System Specification. The spiral development model would then continue through each of the levels of
design within the Acquisition Phase.
Other topics in our resources on Systems Engineering related to Spiral Development Model include: