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For example, raise a Jira ticket against the responsible developer the moment you spot a discrepancy in the build. This way there’s organized accountability within a timeframe and no email escalations against the designer.
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When sharing your Specs, don’t forget to communicate to the developer the Grid System you’re using in your designs. I use 8-point grid system considering almost all the screen-sizes in the market are divisible by 8. Here’s how you can start using it in your designs.
If your designs involve a lot of state-changes for buttons or labels, then be sure to document passive/active states of your buttons, up/down states, dynamic text, animation from variables, etc.
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