Agile methods derive much of their agility by relying on the tacit knowledge embodied in the team, rather than writing the knowleadge down in plans.

If a project has not achieved a system architecture, including its rationale, the project should not proceed to full-scale system development. Specifying the architecture as a deliverable enables its use throughout the development and maintenance process.
BARRY BOEHM

Achieve Development Maintenance System Use
Negotiation builds a team as well as a set of requirements.
BARRY BOEHM

Negotiation Requirement Team
Software engineering economics.
BARRY BOEHM

Economics Engineering Software
Poor management can increase software costs more rapidly than any other factor.
BARRY BOEHM

Cost Management Poor Teamwork
Stop the life cycle-I want to get off!
BARRY BOEHM

Cycle Stop Want
Agile methods derive much of their agility by relying on the tacit knowledge embodied in the team, rather than writing the knowleadge down in plans.
BARRY BOEHM

Agility Team Writing
Poor management can increase software costs more rapidly than any other factor. Particularly on large projects, each of the following mismanagement actions has often been responsible for doubling software development costs.
BARRY BOEHM

Cost Development Management Poor
About 90 percent of the downtime comes from, at most, 10 percent of the defects.
BARRY BOEHM

Bugs Downtime Programming

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