accesible if and visible if difference on attribute in schema

<attribute name="firstName" accessibleIf="$(login)=='admin'"/>
<attribute name="firstName" visibleIf="$(login)=='admin'"/>

hi all, what is the diference between accesible if and visible if difference on attribute in schema

1.what will happen practically in terms of data view in adobe ui if we use below code

<attribute name="firstName" accessibleIf="$(login)=='admin'"/>

2.what will happen practically in terms of data view in adobe ui if we use below code

<attribute name="firstName" visibleIf="$(login)=='admin'"/>