Suppose entity types Patient and Ward have been selected, and that their relationship is represented by posting ward Name into Patient. What potential is there for inconsistent updating of ward Name...

Suppose entity types Patient and Ward have been selected, and that their relationship is represented by posting ward Name into Patient. What potential is there for inconsistent updating of ward Name when the name of a ward is changed? Is the situation any different to that which occurs for number Of Beds if there is no Ward entity, as discussed in the last paragraph of section 13.5?