Accessibility is an ongoing process.  It is a mindset brought to digital content design.  Accessibility-minded design and development results in a better overall experience for all users.  Be it a document, a website, or a video, when the design and development is thought out with accessibility in mind, the resulting content is more accessible to all.

Checkslists provide a practical way to address accessibility.  However, accessibility does not necessarily refer to technical aspects that may be checked off a list but rather to an empathetic approach to content creation. Empathy for users who have a diversity of needs, abilities, backgrounds, ways of learning...  In the end, empathy for diverse users in the possible measure.

The "Do It Yourself" page in this site provides a list of measures for accessibility you can take into account while you are creating any content.

Instructional Design units from all over campus are currently collaborating in the creation of a checklist for instructors.  It will be available through this website in the near future.

The W3C has created an extensive checklist for content creators that want to learn about the intricacies of digital accessibility.

Web Developer Luke McGrath has summarized WCAG 2.0 requirements it in a style that may cater to his developer peers.  

VoxMedia, an adverstising and marketing agency, recently created a checklist that takes into account different production roles.  Even though, the list does not necessarily reflect the roles we may have in development teams at Iowa State, it seems useful.

These checklists tend to be partial.  They provide a way of incrementally addressing accessibility.  Start with the "Do It Yourself" suggestions, then move to more involved tasks if necessary.  In any case, the final go-to guide should always be the Web Content Accessibility Guidelines or WCAG 2.0 Level AA guidelines published by the W3C.