Topic 2 digital identity

As the development of the internet, the digital identity are more and more improtant. First of all, what's digital identity? Actually, I have been search for the definition on the internet. there are lots different explanations for it. I just find a suitable one for it is "Digital Identity’ (DI) is a term to describe the persona an individual presents across all the digital communities in which he or she is represented." This explanation are more intend to the digital identity's means.

Speaking of the which, we leave a ‘digital footprint’. This ‘footprint’ is what makes up our Digital Identity (DI) – all those things which can be found out about us from the content you posts, the profiles we make, the conversations we have with others and the things other people post about us. 

What's improtanty is that, you should probably know your own digital identity. Because there are so many ways to get online, and contact friends and professional acquaintances, you might find that you have bits and pieces of your DI spread across many services.  What’s more, other people might post things about you without you knowing about it.  If you use different names when you sign up to services, it might be harder for other people to be able to make the connection between your different profiles – and that added difficulty may be a good thing or a bad thing.