Information Systems , Volume 6, 1981

Volume 6, Number 1

H. Rex Hartson: Database security-system architectures. 1-22
W. S. Luk: On data dependency structures of relational databases. 23-29
Stefano Ceri, Giuseppe Pelagatti, Giampio Bracchi: Structured methodology for designing static and dynamic aspects of data base applications. 31-45
Robert C. Brigham, Ronald D. Dutton, James R. Driscoll: Complexity of a proposed database storage structure. 47-52
Gernot Richter: Utilization of data access and manipulation in conceptual schema definitons. 53-71
Antonio L. Furtado, Clesio Saraiva dos Santos, José Mauro Volkmer de Castilho: Dynamic modelling of a simple existence constraint. 73-80

H. Auer, W. Hell, Hans-Otto Leilich, J. S. Lie, Heinz Schweppe, S. Seehusen, Günther Stiege, W. Teich, Hans Christoph Zeidler: RDBM - A relational data base machine. 91-100
Harald Oftedal: Imprecision of specification of information systems parameters: A study of decision point probabilities. 101-109
Kuo-Chung Tai, Alan L. Tharp: Computed chaining - A hybrid of direct chaining and open addressing. 111-116
Prabuddha De, William D. Haseman, Yuk Ho So: Four-schema approach: An extended model for database architecture. 117-124
Ben Shneiderman: A Note on Human Factors Issues of Natural Language Interaction With Database Systems. 125-129, see comments in SIGMOD Record 13 (1): 92-98 (1982)
Ian A. Macleod: A data base management system for document retrieval applications. 131-137
C. L. Lam, Zvonko G. Vranesic: Key compression using segment strings. 139-146

John G. Kollias, Michael Hatzopoulos: Allocation of copies of s distinct files in an information network. 201-204
Zdzislaw Pawlak: Information systems theoretical foundations. 205-218
Jaroslaw Dobosz, Boleslaw K. Szymanski: An implementation of relational interface to an information retrieval system. 219-228
Larry E. Stanfel, J. Y. Chen: A counter-example to a clustering heuristic. 229-230

Oscar Barros: Management information systems structure, types and integration. 243-254
Philip A. Bernstein, Nathan Goodman: The power of inequality semijoins. 255-265
Harald Oftedal, Arne Sølvberg: Data base design constrained by traffic load estimates. 267-282
Pavel Materna, Jaroslav Pokorný: Applying simple theory of types to data bases. 283-300
Zbigniew Michalewicz: Compromisability of a statistical database. 301-304
Clyde W. Holsapple: Data structuring with virtual sets. 305-315