Exceptions criteria and prompting questions
There are 4 criteria to consider. Use the prompting questions for each criteria to help assess if you can get an on-premises exception.
The exceptions criteria
Operational criteria questions
Is the on-premises information and communications technology (ICT) investment needed:
- for regulatory compliance, government standards, or similar requirements that cannot be achieved using a cloud solution?
- to meet guidelines for Māori data, as was identified via Māori-Crown agency collaboration or by following He Aratohu Kapua?
- for more direct system control — required by the system functionality over cloud options?
- to gain better access to skilled staff (resource availability) than are available with cloud options?
- to achieve a lower environmental impact (including energy usage and waste) compared with cloud options?
Financial criteria questions
- Is the existing on-premises equipment relatively new and not fully depreciated?
- Is the on-premises solution more feasible due to limits on ongoing OPEX (operating expenditure) and available CAPEX (capital expenditure) — in other words, budget constraints?
- When considering all costs (total cost of ownership), is the on-premises investment significantly more cost-effective than cloud solutions?
Technical criteria questions
Is on-premises ICT investment:
- necessary due to a lack of suitable cloud alternatives for key functionalities?
- hosting required for special hardware, configurations, or systems that are only available in a non-cloud environment?
- preferred due to better integration with existing systems, or because cloud integration may be complex and costly?
- the necessary solution due to the vendor’s reputation, track record and required support levels?
- required to ensure compatibility with existing systems (interoperability)?
- a better option for real-time processing and zero latency (delay) tolerance?
- necessary due to a low tolerance for system failure?
Specialist criteria questions
Does the on-premises solution offer much simpler system integration than the cloud solution?
Is on-premises hosting:
- necessary for bespoke on-premises applications?
- required for critical systems (such as those in medical, border control, and financial functions) to ensure reliability and safety and to avoid severe impact when a cloud solution is unavailable?
- essential for storing and managing sensitive or objectified material in a secure environment?
- required due to undeveloped or limited application programming interfaces (APIs)?
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