Volume 25, Number 1, March 2000

• 
  Ho-Hyun Park, Yong-Ju Lee, Chin-Wan Chung: Spatial Query Optimization Utilizing Early Separated Filter and Refinement Strategy. 1-22
• 
  Salvatore T. March, Sangkyu Rho: A Semantic Object-Oriented Data Access System. 23-41
• 
  Wil M. P. van der Aalst, Arthur H. M. ter Hofstede: Verification Of Workflow Task Structures: A Petri-net-baset Approach. 43-69

Volume 25, Number 2, 26 May 2000

Advanced Information Systems Engineering / CAiSE 1999

• 
  Matthias Jarke, Andreas Oberweis, Wolffried Stucky: Guest Editorial: Special Issue on Advanced Information Systems Engineering. 71
• 
  Peter F. Green, Michael Rosemann: Integrated Process Modeling: An Ontological Evaluation. 73-87
• 
  Panos Vassiliadis, Mokrane Bouzeghoub, Christoph Quix: Towards Quality-oriented Data Warehouse Usage and Evolution. 89-115
• 
  Wasim Sadiq, Maria E. Orlowska: Analyzing Process Models Using Graph Reduction Techniques. 117-134
• 
  Holm Wegner, Patrick Hupe, Florian Matthes: A Process-Oriented and Content-Based Perspective on Software Components. 135-156
• 
  Aiko Frank, Jürgen Sellentin, Bernhard Mitschang: TOGA-A Customizable Service for Data-Centric Collaboration. 157-176

Volume 25, Number 3, May 2000

• 
  Tiziana Catarci: What Happened When Database Researchers Met Usability. 177-212
• 
  Alistair G. Sutcliffe: Requirements analysis for socio-technical system design. 213-233
• 
  Heeseok Lee, Cheonsoo Yoo: A Form Driven Object-Oriented Reverse Engineering Methodology. 235-259

Volume 25, Issue 4, June 2000

• 
  Kam-yiu Lam, Tei-Wei Kuo, Wai-Hung Tsang, Gary C. K. Law: Concurrency control in mobile distributed real-time database systems. 261-286
• 
  Georgia Garani, Roger Johnson: Joining nested relations and subrelations. 287-307
• 
  Dong-Kweon Hong, Sharma Chakravarthy, Theodore Johnson: Incorporating Load Factor into the scheduling of Soft real-time transactions for main memory databases. 309-322

Volume 25, Number 5, 2000

• 
  Vikram Pudi, Jayant R. Haritsa: Quantifying the Utility of the Past in Mining Large Databases. 323-343
• 
  Sudipto Guha, Rajeev Rastogi, Kyuseok Shim: ROCK: A Robust Clustering Algorithm for Categorical Attributes. 345-366
• 
  Gianluca Moro, Antonio Natali, Claudio Sartori: Compostional Algebra for Interactive Data Access. 367-391

Volume 25, Numbers 6-7, September - November 2000

• 
  Matthias Jarke, Dennis Shasha: Message from the Editors-in-Chief. 393
• 
  Altigran Soares da Silva, Alberto H. F. Laender, Marco A. Casanova: On the relational representation of complex specialization structures. 399-415
• 
  Johan Larson, David J. DeWitt: Accessing out-of-tuple data: a performance study. 417-429
• 
  Kwok-Wa Lam, Sang Hyuk Son, Sheung-lun Hung, Zhiwei Wang: Scheduling transactions with stringent real-time constraints. 431-452
• 
  Meral Binbasioglu, Dimitris Karagiannis: A system for supporting organizations in knowledge-based document preparation. 453-463

Volume 25, Number 8, December 2000

ADBIS 1999

• 
  Johann Eder, Tatjana Welzer, Gottfried Vossen: Guest Editorial: Special Issue On ADBIS 1999. 465-466
• 
  Jacek Plodzien, Anna Kraken: Object Query Optimization through Detecting Independent Subqueries. 467-490
• 
  Nicholas Q. Trân, Rajiv Bagai: Efficient Representation and Algebraic Manipulation of Infinite Relations in Paraconsistent Databases. 491-502
• 
  Can Türker, Gunter Saake: Global Extensional Assertions and Local Integrity Constraints in Federated Schemata. 503-526
• 
  Giorgio Terracina, Domenico Ursino: A uniform methodology for extracting type conflicts and subscheme similarities from heterogeneous databases. 527-552
• 
  Enrico Nardelli, Guido Proietti: An efficient spatial access method for spatial images containing multiple non-overlapping features. 553-568