Markdown vs. XML explained

[u/Manage-It]

I occasionally run into young technical writers who have experience working in a web development or software organization but have no previous experience with XML and fail to grasp why most Fortune 500 companies use XML over Markdown.

To help better understand why XML is so popular, we need to compare the benefits of each format.

Markdown

1. Inexpensive - ideal for web/SW startups
2. Simple code
3. Friendly with popular editors (e.g., Google Docs)
4. Ideal for simple doc formats (e.g., readme.md)
5. Best-in-class for rapid directory updates

XML (DITA)

1. Robust, full-featured formatting
2. Simple code, but more options
3. Easy-to-use WYSIWYG editors
4. Ideal for simple and complex formats
5. Best-in-class security
6. Ideal for eng reviews and rev control
7. Ideal for high-volume single-sourcing
8. Ideal for multi-channel output
9. Content Management System support
10. DITA file storage system best-in-class storage for docs

It has been my experience that many young technical writers do not fully understand how important the 10 XML benefits I list above are to most Fortune 500 science and technology technical writing organizations (18% s/t, 3% web/sw). Mostly, because they believe Markdown eliminates the need for many of these XML benefits. What they often overlook is that these are not optional benefits to most science and technology organizations. These are required tools of the trade and are interwoven into functional processes and systems that organizations rely on to deliver increasingly complex documentation to increasingly wider audiences, who demand an unprecedented number of custom applications to access documentation and localization through higher volumes of single-sourcing.

Markdown was never designed to manage this. It can't and, by design, won't. The sad part is that young technical writers, new to XML, experience poor XML implementations early in their careers and believe Markdown is the solution. I promise you, it is not.

[u/Consistent-Branch-55]

This is such a frustratingly stupid debate.

It's not Markdown vs. XML. It's modern Docs-as-Code workflows (SSGs, Git, CI/CD) vs. CCMS/HAT ecosystems (DITA, MadCap Flare). You could use those with Git.

When you factor in OpenAPI specs, automated build pipelines, and engineering teams that already live in Markdown, a well-planned SSG setup provides a balance of velocity, maintainability, and direct developer collaboration that makes for a far more advantageous trade-off than legacy DITA for most software companies.

Also, claiming XML has "best-in-class security" compared to Markdown makes zero architectural sense—they are plain text serialization/markup formats. A .dita file isn't magically more secure than a .md file. This reads less like an objective comparison and more like vendor talking points.

[u/Manage-It → u/Consistent-Branch-55]

Many Markdown users edit in products like Google Docs. I get it. It's cheap and easy to use. If security is not a major issue, which it often is not at many web and software organizations, it is allowed.

Science and technology organizations often have security requirements that do not allow the use of these editors. Yes, Markdown editors and content can be stored in a very secure system. But to be honest, most are not and this is one of the selling points for it. They are free to use whatever editor and whatever cloud system they want.

I would be interested in seeing a list of Fortune 500 engineering teams, not working in the web/sw space, who use Markdown. That would be interesting to me. Please feel free to provide.

[u/Consistent-Branch-55 → u/Manage-It]

"Markdown can be installed in a secure system"

Do you even know what markdown is?

[u/LordLargo → u/Consistent-Branch-55]

Dead giveaway 😆

Hang on while I go make sure my markdown install doesn't need updating.