Browsing through a previous question on the usability between Windows and Mac OS, I thought an interesting question would be to see if there were any studies done on the impact of changing operation systems within an organization. I think the true test of usability between the two different offerings would be to see if there was a greater impact to change from Windows to Mac compared to changing from Mac to Windows. If this is not something that organizations would typically do, I would also consider any academic papers or hypothetical situations discussed of interest.


I don't know and cannot find evidence of entire companies making such a switch. I tend to see a couple of scenarios:

  1. Totally invested in a Windows or Linux based platform with a bunch of proprietary software and unable to make the switch even if they wanted to.
  2. Having to support numerous novices with everything and therefore stuck on Windows for support solutions and having at least some level of familiarity for their users. Or IT departments scared of having non-Windows systems on the network.
  3. Not caring IT wise and therefore having a mix of everything, with people using whatever they're comfortable and productive with.

Apple doesn't have the ecosystem and solutions for corporate level support. I'm on a Mac here, but with the understanding I'm on my own if something doesn't work. Colleagues on Windows can get remote support (mostly to install anti-virus updates...). You can't just call someone to rig up an maintain a Mac environment. Therefore I can't see entire companies making the switch from Windows to Mac. Obviously there is no sane reason to switch from Mac to Windows ;)

This also makes it virtually impossible to compare. It's not simply an OS switch, it's an ecosystem switch.


As I used to work as a user researcher on Office:Mac, I can tell you that there has been plenty of research on this very topic. However, I can't share specific results, since that research is proprietary to Microsoft. With that in mind, I can share some things about conducting this sort of research in general.

The first is that the environment of the organization matters a great deal. Off the top of my head, here are some examples of barriers to change in the organization's environment:

  • the organization relies on a lot of applications that aren't available on the new platform
  • the organization uses a lot of websites that won't work in the browsers available for the new platform
  • IT for the organization isn't educated on and prepared to support the new platform

If there are barriers like this exist in the organization, then converting to the new platform will be somewhere between difficult and impossible. If the environment is more open and amenable to supporting multiple platforms, which we're seeing more and more with the rise of BYOD (Bring Your Own Device) and now BYOL (Bring Your Own Laptop), such a conversion has lower barriers.

The second is that this isn't so much a question of usability (which is about being able to complete tasks the first time you encounter the new product), but rather of usage (which includes usability, learnability, and other factors). No matter how well-designed a product is, if someone is used to using something else, switching to a new product is going to incur a cost because the user has a lot of expectations and habits that were formed using the previous product. These expectations and habits are likely to be broken, and cause initial pain as a result, in making this switch. The true test of the success of such a switch is measured a few months after the switch occurs. Back when I was working for Microsoft, I wrote a blog post about usability versus usage, considering the then-new iPhone, which has more details about the difference between them.

Overall, I don't think that it's possible to make a general statement about whether an operating system is better than another at the level of an organization. Different organizations have different needs, different tools, different goals, and different users with different behaviors, habits, and expectations. It's a varied world out there, and there's lots of great and valid reasons for that variability.

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