Refer to Problem $2,$ Chapter $7.$ Henry has defined the data flows as three librarians receiving a

forthcoming publication checklist every week, librarians marking their preferences and submitting

the list to the head librarian, and the head librarian preparing the final list and submitting it to the

clerk for the order to be placed.

a$.$ For each of these data flows, write an entry in Henry$$s data dictionary.

b$.$ Write one data entry for each of the data stores involved in the situation.