By Dirk Draheim, Gerald Weber
Form-based functions diversity from easy internet retailers to advanced firm source making plans structures. Draheim and Weber adapt well-established simple modeling options in a singular technique to in achieving a modeling framework optimized for this wide program area. They introduce new modeling artifacts, equivalent to web page diagrams and shape storyboards, and separate discussion styles to permit for reuse. of their implementation they've got built new constructs equivalent to typed server pages, and instruments for ahead and opposite engineering of presentation layers. The technique is defined utilizing an internet bookstore as a working instance within which the person can event the modeling strategies in action.
The mixture of theoretical achievements and hands-on useful recommendation and instruments makes this e-book a reference paintings for either researchers within the parts of software program architectures and submit-response variety consumer interfaces, and pros designing and constructing such functions. additional info and extra fabric is additionally to be had on-line.
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Extra info for Form-Oriented Analysis: A New Methodology to Model Form-Based Applications
Take a system login dialogue as an example. The business logic says that if a user has never bought anything, then after six months the username will be deactivated and can be taken by another user. The submission of username and password can therefore have a number of diﬀerent eﬀects. • • • If the username belongs to a valid account and the password is valid, then the welcome screen for registered users is shown. If the username belongs to a deactivated account and the password is valid, then the user gets a screen informing him or her that the account has been reactivated.
The proposed diagrams already express the key elements of the submit/response paradigm. However, questions concerning naming conventions, rigorous typing and data modeling, formal dialogue speciﬁcation, and so on are deferred to Chap. 5. First, two kinds of analysis models will be deﬁned in Chap. 5, the information system model and the user message system model. It turns out that the diﬀerent proposed diagrams are just diﬀerent views on such models – diﬀerent with respect to expressive power and formality.
1. If the user provides erroneous login data, he or she is redirected to the login client page until he or she provides correct data. That means initial login screens and error login screens are modeled by the same client page. This works because in the described system the login error screens are actually identical to the initial login screens except for an appropriate error message. Nevertheless, the modeler might want to split the login client page into an initial login client page and an error login client page in order to foster the understanding of the dialogue.
Form-Oriented Analysis: A New Methodology to Model Form-Based Applications by Dirk Draheim, Gerald Weber