41. GADS contains many of the same elements previously collected by EEI in addition to the many new data items . 42. BDB stores arbitrary key / data pairs as byte arrays, and supports multiple data items for a single key. 43. The second rule ensures that two write operations from two transactions cannot occur concurrently on the same data item . 44. The key data type in the Clark & ndash; Wilson model is a Constrained Data Item ( CDI ). 45. The model s enforcement and certification rules define data items and processes that provide the basis for an integrity policy. 46. Information integrity is maintained by preventing corruption of data items in a system due to either error or malicious intent. 47. If these parameters occur on a line without data items , they set new defaults for the data lines that follow. 48. The third is primarily performed dynamically, when data items or methods of a class are first accessed by another class. 49. Suppose a database contains N data items and one must be retrieved based on the value of one of the fields. 50. The model contains a number of basic constructs that represent both data items and processes that operate on those data items.
