Addressing the problem of protecting confidential information and data stored in computer databases from access by unauthorized parties, this paper details coding schemes which present such astronomical work factors to potential code breakers that security breaches are hopeless in any practical sense. Two procedures which can be used to encode for…

Continuing technological advances in computers and communications make possible the integration of data systems and the exchange of data among them on an expanding scale. However, the full effect of these advances cannot be realized unless the need for uniform understanding of the common information (data elements) and their expression in data…

This book deals with properties of vocabularies for indexing and searching document collections; the construction, organization, display, and maintenance of these vocabularies; and the vocabulary as a factor affecting the performance of retrieval systems. Most of the text is concerned with vocabularies for post-coordinate retrieval systems, with…

This book is in the form of a bibliographic essay, and addresses the needs of educators seeking access to legal research materials. The first item discussed is court decisions and examples are given which demonstrate the importance of legal precedent. An explanation is given of the complicated systems for reporting court decisions and how the…

MONIFORMS are partially completed coding formats in the TUTOR language used to create frequently used question types such as multiple choice, matching, and constructed response questions. The author adds information related to specific questions and responses, using one of several options available for tailoring a question to meet specific…