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This guidance is an introduction to the Open Document Format (ODF) standard and how you can select ODF-compliant solutions.
How to choose data tools and infrastructure that are flexible, scalable, sustainable and secure.
Publish your code and use open source to improve transparency, flexibility and accountability.
The UK government's design principles and examples of how they've been used.
Create a mobile experience that meets user needs without relying on native or hybrid apps.
Make sure your technology, infrastructure and systems are accessible and inclusive for all users.
Information for developing and testing of software for HMRC forms, returns and messages.
How to manage configuration: open source tools, writing infrastructure in code, portability.
Use this page to check which software works with Making Tax Digital for Income Tax.
Find Companies House-recognised filing software to manage your company accounts, returns and tax accounts
Why to deploy regularly, deployment principles to follow, and how to do it.
Design, build and operate APIs in a consistent way
Spreadsheets are a common way to share data. Use this information to help you avoid common errors, improve interoperability and create more accessible spreadsheets.
Check a list of software developers who can provide Customs Declaration Service and Customs Handling of Import and Export Freight (CHIEF) software.
How to use usability testing to evaluate your digital health product.
The team capabilities available on the Digital Outcomes framework.
Learn how to publish accessible documents to meet the needs of all users under the accessibility regulations.
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