In my opinion, there are two types of standards. There's a technical standard, and then there's a policy standard. Technical standards deal with different formats of data, whether they're mapping-format data sets or Excel or that type of thing. I think those are probably less of an issue.
Of greater importance are the policy standards. For example, when we work with low-income groups, there are many different definitions and many different measures of poverty. When you have different levels of government, even ministries within governments, releasing data sets called poverty, there needs to be a consistent metadata set that defines what all those indicators mean. I would say that's probably more of the challenge.
Finally, the other thing that we haven't really considered, haven't spoken about, is information technology. When I mentioned earlier that we release data sets on numerous different portals at the city, we've used a centralized data warehouse and we've used centralized geographic spatial software to make sure that consistency and that vintage is the same throughout the city, so the other standard there is geography, and that one is probably the easier one.