| 4
        Database and record structure | 
    | Bookends | 
    
        | 4.1 Files
 | 
    
    | Bookends: | 
    
        | 4.2 Internal
        database and record structure | 
    
    | Bookends: only vertical:
        Database -> Record -> Fields (-> Subfields for first names and qualifications; can extract just the four digits year in a date like: September, 20, 2002) | 
        | 4.3 Horizontal
        links: between databases, records, list entries | 
    
    | Bookends: no | 
    
        | 4.4 Hierarchical
        links (es. thesaurus, mother/sons records,
        text/notecards) | 
    
    | Bookends: no | 
    
        | 4.5 Ready,
        predefined record structure | 
    
    | Bookends: yes | 
    
        | 4.6 Input
        worksheets for different Record types1. features
 2. can be modified
 3. can create others
 | 
    
    | Bookends: 1: 17 workforms/RT -all with
        the same fields- for books, articles, thesis, reviews, videos etc.;
        fields are identified by code: total number
        is fixed 16; fields may have got 
        properties such as : repeatable (multiple: authors, keywords), linked to a term table, to the journals
        glossary, allowing specific formatting options;
 2 may change name but not code or position within the entry/display workform
 | 
    
        | 4.7 Fields attributes can be
        changed; can be applied to other fields | 
    
    | Bookends: no | 
    
        | 4.8 Multiples
        (multi-value) fields1. present/absent
 2. specific input rules
 | 
    
    | Bookends: 1: authors/editors, keywords (output display can recognize 
    first name and other occurrences); 2 each entry on a new line
    (if you select entries from the list, it is up to you not to leave them on the same line) | 
    
        | 4.9 Indexed
        fields for searching | 
    
    | Bookends: all | 
    
        | 4.10 Record
        number
 
           1. system assigned 2. reserved, cannot be altered
 3. user assigned
 4. allows duplicate numbers
 5. renumbering
 6. is a sortable field
 7. is a searchable field
 8. can be displayed in printed output
 9. reuse deleted numbers
 10. can be alphanumeric
 | 
    
    | Bookends: two record numbers. First automatically assigned, can decrease if one deletes references. Second automatically randomly assigned (and will change when copied to another database if it conflict against existng one), can be modified by user. The second identifies the record | 
| Legend |  | 
| Multiple choice when choice is multiple (e.g.
1. 2. 3. etc.) number means "yes", its absence means
"no: lack of the feature", unless a note states
otherwise | Commands menus are indicated between double
quotes, specific commands within menus or selection panels are
introduced by an arrow, e.g. "Edit" -> Show
clipboard, means: "open the Edit menu and select Show
clipboard" | 
| A/D = ascending / descending sort order | b/e = beginning / end of field or record | 
| CDF=Comma Delimited File format | db = database; dbn = database name | 
| fn.XXX = filename +
name extension | FL = formatting language, i.e.: set of commands
to define output styles | 
| n: many, undefinite quantity | kw = keyword | 
| l/r = left/right | n.a. = not applicable | 
| RefID = record, or reference, identifier | RN = record number | 
| RT = reference, or document, or record type | sw = software | 
| wp = word processor | x-refs = cross reference (e.g.: see, see
also...) |