Constraints might include:

• length (minimum and maximum)
• medium of presentation (eg paper versus screen, desktop versus mobile)
• time – when is your deadline?
• mandated styles and formats (eg rules about what a thesis should look like)
• whether you have a document template you must use
• process (eg whether you need to get your document edited or designed, whether other people need to see the draft)
• approvals (eg whether you need supervisor or management signoff)
• vocabulary and reading level required
• the need for accessibility – some forms of media or interactivity may not be accessible to some readers, such as people with impaired vision.