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1990
Ehrich, H. - D., and A. Sernadas, "Algebraic Implementation of Objects over Objects", Proc REX Workshop ``Stepwise Refinement of Distributed Systems: Models, Formalisms, Correctness'': LNCS 430, Springer, Berlin, pp. 239-266, 1990. Abstract  Download: 1990AlgImplem.pdf (479.42 KB)
Engels, G., U. Hohenstein, K. Hülsmann, P. Löhr-Richter, and H. - D. Ehrich, "CADDY: Computer-Aided Design of Non-Standard Databases", Proc 1st Int Conf on System Development Environments and Factories: Pitman, London, 1990. Abstract  Download: 1990Caddy.pdf (896.19 KB)
Ehrich, H. - D., A. Sernadas, and C. Sernadas, "From Data Types to Object Types", Journal on Information Processing and Cybernetics EIK, vol. 26, no. 1-2, pp. 33-48, 1990. Abstract  Download: 1990EIK.pdf (875.31 KB)
Sernadas, A., H. - D. Ehrich, and J. - F. Costa, "From Processes to Objects", The INESC Journal of Research and Development 1:1, pp. 7-27, 1990. Abstract  Download: 1990INESC.pdf (997.32 KB)
1989
Sernadas, A., J. Fiadeiro, C. Sernadas, and H. - D. Ehrich, "Abstract object types: A temporal perspective", Proc. Colloq. on Temporal Logic in Specification, B. Banieqbal, H. Barringer, and A. Pnueli, editors: Springer LNCS 398, 1989. Abstract  Download: 1989AbstrObjTypes.pdf (393.35 KB)
Ehrich, H. - D., G. Engels, M. Gogolla, G. Saake, and (eds), "Abstracts des Workshops "Grundlagen von Datenbanken"", Abstracts des Workshops "Grundlagen von Datenbanken": Informatik-Bericht Nr. 89-02, Technische Universität Braunschweig, 1989. Abstract
Sernadas, A., J. Fiadeiro, C. Sernadas, and H. - D. Ehrich, "The Basic Building Block of Information Systems", Information System Concepts: An In-Depth Analysis: North-Holland, Amsterdam, 1989, pp. 225-246, 1989. Abstract  Download: 1989BBBofIS.pdf (1.08 MB)
Lohmann, F., K. Neumann, and H. - D. Ehrich, "Entwurf eines Datenbank-Prototyps für geowissenschaftliche Anwendungen", Proc GI/SI-Fachtagung ``Datenbanksysteme in Büro, Technik und Wissenschaft'': Springer, Berlin, 1989, pp. 43-57, 1989. Abstract  Download: 1989BTW.pdf (557.01 KB)
Ehrich, H. - D., A. Sernadas, and C. Sernadas, "Objects, Object Types, and Object Identification", Categorical Methods in Computer Science: LNCS 393, Springer, Berlin, pp. 142-156, 1989. Abstract  Download: 1989ObjOtypOid.pdf (313.66 KB)
1988
Ehrich, H. - D., A. Sernadas, and C. Sernadas, "Abstract Object Types for Databases", Advances in Object-Oriented Database Systems: LNCS 334, Springer, Berlin, 1988, pp. 144-149, 1988. Abstract  Download: 1988AbstrObjTypes.pdf (549.79 KB)
Engels, G., U. Hohenstein, G. Saake, and H. - D. Ehrich, "Auf dem Weg zu einer integrierten Datenbank-Entwurfsumgebung", Proc GI-Workshop ``Sprachspezifische Programmierumgebungen'', pp. 38-51, 1988. Abstract  Download: 1988DBEntwUmg2.pdf (564.82 KB)
Ehrich, H. - D., F. Lohmann, K. Neumann, and I. Ramm, "A Database Language for Scientific Map Data", Construction and Display of Geosientific Maps Derived from Databases (Proc. Int. Coll. Dinkelsbühl 1986): Geologisches Jahrbuch A 104, pp. 139-152, 1988. Abstract  Download: 1988Geo.pdf (905.2 KB)
Engels, G., U. Hohenstein, L. Neugebauer, G. Saake, and H. - D. Ehrich, "Konzeption einer integrierten Datenbank-Entwurfsumgebung", Proc1 DBTA/SI Conf1 ``Data Dictionaries und Entwicklungswerkzeuge für Datenbankanwendungen'': Verlag der Fachvereine an den Schweiz1 Hochschulen und Techniken, Zürich, pp. 151-157, 1988. Abstract  Download: 1988DBEntwUmg1.pdf (692.07 KB)
Ehrich, H. - D., K. Drosten, and M. Gogolla, "Towards an Algebraic Semantics for Database Specification", Proc 2nd IFIP WG 2.6 Working Conf on Database Semantics ``Data and Knowledge'' (DS-2), Albufeira, Portugal, North-Holland, Amsterdam, pp. 119-135, 1988. Abstract  Download: 1988Albufeira.pdf (1.08 MB)
1987
Sernadas, A., C. Sernadas, and H. - D. Ehrich, "Object-Oriented Specification of Databases: An Algebraic Approach", Proc 13th Int Conf on Very Large Databases VLDB'87: VLDB Endowment Press, Saratoga (CA), pp. 107-116, 1987. Abstract  Download: 1987VLDB.pdf (679.95 KB)
Drawin, M., K. Neumann, and H. - D. Ehrich, "Regelorientierte Erzeugung von Karten-Entwürfen auf geowissenschaftlichen Datenbanken", Proc Datenbanksysteme in Büro, Technik und Wissenschaft: Informatik-Fachbericht 136, Springer, Berlin, pp. 231-246, 1987. Abstract  Download: 1987BTW.pdf (739.81 KB)
Hohenstein, U., L. Neugebauer, G. Saake, and H. - D. Ehrich, "Three-Level Specification of Databases Using an Extended Entity-Relationship Model", Proc GI-Fachtagung ``Informationsermittlung und -analyse für den Entwurf von Informationssystemen'': Informatik-Fachbericht 143, Springer, Berlin, 1987, pp. 58-88, 1987. Abstract  Download: 1987ThreeLevelSpec.pdf (1.21 MB)
1986
Ehrich, H. - D., K. Drosten, M. Gogolla, U. Lipeck, and (eds), "Abstracts of the 4th Workshop on Specification of Abstract Data Types", Abstracts of the 4th Workshop on Specification of Abstract Data Types: Informatik-Bericht Nr. 86-09, Technische Universität Braunschweig, 1986. Abstract
Ehrich, H. - D., "Key Extensions of Abstract Data Types, Final Algebras, and Database Semantics", Proc Workshop on Category Theory and Computer Programming: Springer, Berlin, LNCS series, pp. 412-433, 1986. Abstract  Download: 1986KeyExtens.pdf (277.5 KB)
1985
Ehrich, H. - D., "Algebraic (?) specification of conceptual database schemata (extended abstract)", Recent Trends in Data Type Specification, Informatik-Fachberichte, vol. 116: Springer, 1985. Abstract  Download: 1985AlgSpecDB.pdf (349.23 KB)
Ramm, I., and H. - D. Ehrich, "Einführung in das Projekt: Entwurf einer Benutzerschnittstelle für eine graphisch-alphanumerische Datenbank", Nachrichten aus dem Karten- und Vermessungswesen, vol. Reihe I, no. Heft 95, pp. 115-124, 1985. Abstract  Download: 1985Geo.pdf (788.93 KB)
Lipeck, U. W., H. - D. Ehrich, and M. Gogolla, "Specifying Admissability of Dynamic Database Behaviour Using Temporal Logic", Proc IFIP Working Conf on Theoretical and Formal Aspects of Information Systems: North-Holland, Amsterdam, pp. 145-157, 1985. Abstract  Download: 1985TFAIS.pdf (602.54 KB)
Ehrich, H. - D., "Spezifikation konzeptioneller Schemata mit abstrakten Datentypen und Versionen", Proc. GI-Fachgespräch ``Entwurf von Informationssystemen - Methoden und Modelle'', pp. 1-19, 1985. Abstract  Download: 1985Tutzing.pdf (877.62 KB)
1984
Ehrich, H. - D., and (ed), "Proceedings", GI – 14. Jahrestagung, Braunschweig, Informatik-Fachberichte Nr. 88, Springer, 1984. Abstract
Ehrich, H. - D., and (ed), "Proceedings Fachgespräche", GI – 14. Jahrestagung, Braunschweig, Springer, 1984. Abstract
Ehrich, H. - D., U. W. Lipeck, and M. Gogolla, "Specification, Semantics, and Enforcement of Dynamic Database Constraints", Proc Int Conf on Very Large Databases VLDB '84, pp. 301-308, 1984. Abstract  Download: 1984VLDB.pdf (462.55 KB)
Drosten, K., and H. - D. Ehrich, "Translating algebraic specifications to PROLOG programs", Bericht Nr. 84-08, Institut für Informatik: TU Braunschweig, 1984. Abstract
1983
Gogolla, M., K. Drosten, U. Lipeck, and H. - D. Ehrich, "Algebraic and operational semantics of exceptions and errors", Proc. 6. GI-Fachtagung für Theoretische Informatik: Springer LNCS 145, 1983. Abstract  Download: 1983ExceptErrors.pdf (198.63 KB)
Ehrich, H. - D., and U. Lipeck, "Algebraic domain equations", Theoretical Computer Science, vol. 27, pp. 167-196, 1983. Abstract  Download: 1983TCS-ADE.pdf (951.11 KB)