Essence Alpha - SOFTWARE SYSTEM

SOFTWARE SYSTEM

Architecture Selected

• The criteria to be used when selecting the architecture have been agreed on.
• Hardware platforms have been identified.
• Programming languages and technologies to be used have been selected.
• System boundary is known.
• Significant decisions about the organization of the system have been made.
• Buy, build and reuse decisions have been made.

Demonstrable

• Key architectural characteristics have been demonstrated.
• The system can be exercised and its performance can be measured.
• Critical hardware configurations have been demonstrated.
• Critical interfaces have been demonstrated.
• The integration with other existing systems has been demonstrated.
• The relevant stakeholders agree that the demonstrated architecture is appropriate.

Usable

• The system can be operated by stakeholders who use it.
• The functionality provided by the system has been tested.
• The performance of the system is acceptable to the stakeholders.
• Defect levels are acceptable to the stakeholders.
• The system is fully documented.
• Release content is known.
• The added value provided by the system is clear.

Ready

• Installation and other user documentation are available.
• The stakeholder representatives accept the system as fit-for-purpose.
• The stakeholder representatives want to make the system operational.
• Operational support is in place.

Operational

• The system has been made available to the stakeholders intended to use it.
• At least one example of the system is fully operational.
• The system is fully supported to the agreed service levels.

Retired

• The system has been replaced or discontinued.
• The system is no longer supported.
• There are no ?official? stakeholders who still use the system.
• Updates to the system will no longer be produced.