Max Deveson, a senior analyst at the BBC's Political Research Unit, compiled the text for the Where They Stand guide.
Here he explains how the BBC decided which policy areas to cover, and which parties to include.
Why have you chosen these issues to highlight?
The BBC is committed to providing unbiased and impartial election coverage that reflects the issues that are most important to our audience.
To determine which policy areas should be included in our "Where They Stand" guide, we used Ipsos-Mori's Issues Index, which measures the issues that the public believe to be the most important facing the country.
To make the guide easier to use, we conflated some subjects - for example "NHS" under wider topics such as "healthcare".
Other issue areas - such as rural affairs and constitutional reform - were added on editorial grounds to fulfil the BBC's commitment to public service broadcasting.
How do you select parties to include in the guide?
To ensure that the guide is representative of the wide range of political viewpoints across the country, the BBC includes any party that has announced it will be fielding candidates in at least one-sixth of the seats in any nation of the UK.
Did you find the Where They Stand guide easy to use?
How could it be improved? Your feedback is welcome. We cannot undertake to respond to all emails but your comments will be read by our editorial team.
The BBC may edit your comments and not all emails will be published. Your comments may be published on any BBC media worldwide.