The first tab was to analyze if the application falls into PCI-DSS scope by checking if the application stores, transmit or process card holder data. The developer tab is mainly about auditing your development process.
All questions found here are relevant to compliance. In this case these questions focus mainly to determine how well your development process complies mostly with PCI-DSS. These are core questions that determines for the most part if your Development process complies, but there are more questions that need to be added in order to check completely if the development process complies with PCI-DSS.
Once you have answer the questions, press the button 'Analyze Development'
A file called 'PCI-DSS_analysis_Developer.txt' would be output on the release folder(same where executable is found)
This will produce a Analysis results of your development environment
and it would point you out to the most relevant and important OWASP guidelines that you can use on your environment to achieve PCI-DSS compliance