Abstract
When defining a scheme of a web application (a web scheme) using a conceptual modelling tool, modelers successively perform design steps by extending or refining the scheme. Each design step is characterized by (i) the scheme to which the design step is applied (input scheme) and (ii) the resulting scheme (output scheme). As modelers apply similar design steps repeatedly, it would be convenient to have schema transformers that, when applied to an input scheme, generate an output scheme. In this paper, we present a way of defining schema transformers by example. A transformer comprises an input and an output template that are parameterized examples of an input and an output scheme, respectively. Therefrom executable code necessary for performing transformations can be generated automatically. A transformer is applied to an input scheme by binding elements of the scheme to parameters. For each such application, a corresponding output scheme is then generated.
Our transformers can be introduced in various models/tools for web application modelling. We demonstrate this on the example of WebML.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
WebRatio Site Development Studio, Vers. 3.0.7 (2002), http://www.webratio.com
Alagić, S., Bernstein, P.A.: A model theory for generic schema management. In: Ghelli, G., Grahne, G. (eds.) DBPL 2001. LNCS, vol. 2397, p. 228. Springer, Heidelberg (2002)
Catarci, T., Costabile, M.F., Levialdi, S., Batini, C.: Visual query systems for databases: A survey. Journal of Visual Languages and Computing 8(2) (1997)
Ceri, S., Fraternali, P., Bongio, A., Brambilla, M., Comai, S., Matera, M.: Designing Data-Intensive Web Applications. Morgan Kaufmann, San Francisco (2003)
Ceri, S., Fraternali, P., Bongio, A.: Web Modeling Language (WebML): a modeling language for designing Web sites. Computer Networks (Amsterdam, Netherlands: 1999) 33(1–6), 137–157 (2000)
Frohn, J., Himmeröder, R., Kandzia, P., Lausen, G., Schlepphorst, C.: FLORID: A prototype for F-logic. In: ICDE 1997, p. 583. IEEE, Los Alamitos (1997)
Gómez, J., Cachero, C., Pastor, O.: Extending a conceptual modeling approach to web application design. In: Wangler, B., Bergman, L.D. (eds.) CAiSE 2000. LNCS, vol. 1789, pp. 79–93. Springer, Heidelberg (2000)
Gómez, J., Cachero, C., Pastor, O.: Conceptual modeling of device independent Web applications. IEEE MultiMedia 8(2), 26–39 (2001)
Lechner, S., Schrefl, M.: By-example schema transformers for supporting the process of conceptual web application modelling. Technical Report TR0301, University of Linz, Austria (2003)
Mecca, G., Atzeni, P., Masci, A., Sindoni, G., Merialdo, P.: The araneus webbased management system. In: ACM SIGMOD 1998, pp. 544–546 (1998)
Nanard, M., Nanard, J., Kahn, P.: Pushing reuse in hypermedia design: golden rules, design patterns and constructive templates. In: 9th ACM conference on Hypertext and hypermedia, pp. 11–20. ACM Press, New York (1998)
Papantonakis, A., King, P.J.H.: Gql, a declarative graphical query language based on the functional data model. In: Proceedings of the workshop on Advanced visual interfaces, pp. 113–122. ACM Press, New York (1994)
Schwabe, D., Rossi, G.: An object oriented approach to web-based application design. Theory and Practice of Object Systems 4(4) (1998)
Zloof, M.M.: Query-by-example: A database language. IBM System Journal 16(4), 324–343 (1977)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Lechner, S., Schrefl, M. (2003). Defining Web Schema Transformers by Example. In: Mařík, V., Retschitzegger, W., Štěpánková, O. (eds) Database and Expert Systems Applications. DEXA 2003. Lecture Notes in Computer Science, vol 2736. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45227-0_6
Download citation
DOI: https://doi.org/10.1007/978-3-540-45227-0_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-40806-2
Online ISBN: 978-3-540-45227-0
eBook Packages: Springer Book Archive