This is the software publisher's description.

Thanks to a process called linking, Daylite keeps projects, contacts, tasks, one click away. You can work from a daily task list with all your to-do’s, or open a project to see all its linked tasks and related information. Use Daylite's smart lists help you customise views, so you can focus on relevant and important data.

In modern business email is so important. Daylite can store and link emails to projects and contacts, enabling you to categorise information based on relevance. When you receive an email from a contact, Daylite automatically finds any related open and with a single click you can review the whole project - including tasks, meetings, files and more. You can select some text, create linked tasks or appointments and delegate the activities to other Daylite users. Daylite's email integration works in Apple Mail so you can get up and running quickly and easily.