What decisions belong to design?
Design decisions include hierarchy, page layout, typography and interaction states. Good design also addresses readability, accessible controls and the order in which information is presented. It is not limited to choosing colours.
What decisions belong to development?
Development decisions include rendering, data handling, integrations and deployment. A form needs validation, error handling and a reliable submission destination. The approved visual design does not specify all of those behaviours on its own.
Where do the disciplines overlap?
The disciplines overlap in mobile layouts, performance and usability. Designers need to understand implementation constraints; developers need to preserve the intended user journey. A shared specification prevents gaps between a mock-up and a working website.
What should you record before making a decision?
Record the requirements and evidence relevant to this question before accepting a proposal. Distinguish the work needed at launch from ongoing responsibilities. A clear written scope gives both the business and the supplier an agreed basis for review.
- Design: hierarchy and interaction
- Development: behaviour and data
- Shared: accessibility and performance
- Shared: testing and acceptance
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