Blast-off and Scope of Work

• the blastoff meeting establishes the scope of work
• the scope of work is ideally shown as a context diagram

Business use cases

• triggered by business events
• once triggered are running continously until there’s nothing left to do
• Business events are initiated by adjacent systems

Adjacent systems

• an organization, an individual, computer, a piece of technology or combination
• active adjacent systems have an objective and interface directly with the work
• active adjacent systems are part of the work
• autonomous adjacent systems communicate through one-way dataflows
• cooperative adjacent systems interact predictably with the work, they are normally automated systems

Requirement types

• conscious requirements: stake-holders are talking about them all the time
• unconscious requirements: stake-holders fail to mention them, because they’re so much into the material
• un-dreamed-of requirements are those, the stake-holders haven’t dreamed possible