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Merge pull request #91 from DFE-Digital/EA-Principles-update-Aug-24
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luke-slowen authored Aug 29, 2024
2 parents 9c8ffa2 + 2a112c9 commit 8d776f9
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13 changes: 2 additions & 11 deletions principles/enterprise-architecture-principles.md
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These principles should be applied alongside the UK Government [Service Standard](https://www.gov.uk/service-manual/service-standard) and [Technology Code of Practice](https://www.gov.uk/guidance/the-technology-code-of-practice).

---

## 1. Align with business objectives

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delivering the capabilities should be weighed-up against the impact to achieving
departmental objectives

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## 2. Standardisation

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technologies
* Need the flexibility to experiment with modern technologies to evaluate usefulness

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## 3. Flexibility and adaptability

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* Change may not happen - do not cover every eventuality, only consider changes that
could be expected within the lifecycle of a service/product

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## 4. Security and compliance

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required to prevent your system becoming a 'back door' into sensitive data elsewhere in
the organisation

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## 5. Cloud First - rent, before buy, before build
## 5. Cloud First

Do not build what can easily be bought off-the-shelf. Prioritise cloud-based services over on-premises alternatives.
Rent, before buy, before build. Do not build what can easily be bought off-the-shelf. Prioritise cloud-based services over on-premises alternatives.

**Rationale**

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over Infrastructure-as-a-Service (IaaS), over on-premises options, when evaluating service
hosting options

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## 6. Data integrity and quality

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* Embed data management and governance practices in the organisation for both
operational and analytical data

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## 7. Reuse and modularity

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* Requires teams to be able to discover existing components, services and patterns, and the
functionality they provide

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## 8. Design for operation

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* Include full-lifecycle people and technical resource costs in TCO comparisons when
evaluating options

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## 9. 'Good enough' services

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