In an article that I am writing, I focus on word classification. A typical task that involves word classification is (named) entity recognition. Currently, I am not aware of other tasks associated with word classification. Therefore, I seems fair to me to use the terms interchangeably.

Is this a fair assumption?

In an article that I am writing, I focus on word classification. A typical task that involves word classification is (named) entity recognition. Entity recognition is a rather broad task and seems to cover other sub-tasks as well. 

Therefore, it seems fair to me to use the terms interchangeably.

Is this a fair assumption?