Microsoft popularized the phrase “eating your own dog food,” meaning that a company uses its own products internally before—or while—asking customers to use them. In software, the practice is also called dogfooding or self-hosting.
The phrase became strongly associated with Microsoft in 1988, when manager Paul Maritz sent an email titled “Eating our own Dogfood” to Brian Valentine, who was testing Microsoft LAN Manager. The message challenged the team to increase internal use of Microsoft’s software. From there, the expression spread throughout the company and then into the wider technology industry.
Dogfooding gives developers direct experience with installation, reliability, usability, and everyday frustrations. Microsoft famously used early internal builds of Windows NT, allowing employees to encounter problems before customers did. That feedback could expose defects that laboratory testing or formal quality checks missed.
Microsoft did not necessarily invent the underlying idea. Earlier companies used similar practices, and the phrase’s exact origin is disputed, with possible links to dog-food advertising and pet-food executives. The quiz answer is Microsoft because the company made the expression famous in software culture—not because Microsoft was the first organization ever to use its own products.