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Valencia. June 2001. The OO-H method. C. Cachero, J. Gómez, A. Párraga, O. Pastor DLSI. Universidad de Alicante DSIC. Universidad Politécnica de Valencia SPAIN. OO-H Objetives.
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Valencia June 2001 The OO-H method C. Cachero, J. Gómez, A. Párraga, O. Pastor DLSI. Universidad de Alicante DSIC. Universidad Politécnica de Valencia SPAIN
OO-H Objetives • Definition of new views that provide existing software engineering approaches (UML-compliant models) with interface modelling capabilities. • Inclusion of reuse mechanisms in the model refinement process. Valencia June 2001
OO-H is not... • An Application Modelling Tool BUT an Interface Modelling Tool. • A methodology for developing web sites BUT a method to model and integrate high quality interfaces with preexisting business logic modules. Valencia June 2001
Pattern Catalog OO-H: an overview Valencia June 2001
Class Diagram APD’s NAD’s Update Marketing Authorize Credit Order Entry Bill Customer Schedule Delivery Inventory OO-H Design Process Use Case Diagram 1..N 1..N 1..N DESIGN PROCESS 1. Start from Class Diagram and Use Case Diagram 2. Create a NAD instance 3. Generate a Default APD 4. Apply refinements to APD 5. Generate deliverables refinements Pattern Catalog asp jsp pyth html xml wml Valencia June 2001
Modelling Constructs: MANAGE CONFERENCE • Navigation Classes • Navigation Links Decorators: • Visibility (V|R|H) • Perspectives (P) • Meta attributes • Patterns (Pt) • Filters (F) NAD (I): Constructs • Navigation Targets • Collections Valencia June 2001
NAD (II): Navigation Links • Six types: I-Links, T-Links, R-Links, X-Links, S-Links, Sr-Links • Activation Links • Metamodel attributes: • Visualization • User Interaction • Application Scope Valencia June 2001
NAD (III): Patterns & Filters • PATTERNS • Indexing • Navigation • FILTERS • In origin (Fo) • In destination (Fd) • User-defined • Domain-dependent • $, $$ Valencia June 2001
Associated Expression NAD (IV): Parameter Interaction • Defined inside the Service Links • They have an associated Response Link • 5 Introduction Modes • Hidden • Constant • Immediate • Selection • Navigation Valencia June 2001
Review System Class Diagram Valencia June 2001
PCChair Use Case Diagram Valencia June 2001
PCChair NAD (level 0) (View prototype) Valencia June 2001
(View NC pt) (View CD pt) NAD (V): Final NAD (View APD) (View TS pt) Valencia June 2001
APD (I): General Concepts • Abstract pages = XML documents. • A different template definition (DTD) for each dimension of the interface: tStruct, tForm, tFunction, tLink, tWidget, tLayout, tLocation, tStyle, TExternal(*), TLogic(*). Facilitates Reuse • Automatic derivation of a default APD out of the NAD. • Refined by means of patterns and its corresponding transformation rules. Valencia June 2001
TLOGIC TFUNCTION APD (II): Page Taxonomy XMLTEMPLATES TSTRUCT TFORM TLINK TWIDGET TLAYOUT TLOCATION TSTYLE TEXTERNAL Valencia June 2001
APD (III): Default APD (View NAD) Valencia June 2001
Example of Template: TLink Valencia June 2001
APD Refinements (I) • Two types: • Pattern-driven refinements • Designer-dependent refinements • OO-H Patterns: Transformation Rules • Python scripts easily integrated in the tool. • They can affect every construct of the APD. • The effects don’t necessarily appear on the diagram. Valencia June 2001
Interface Behavior Pattern Catalog Valencia June 2001
Final step: the CLD • It affects the XML content of tExternal, tLayout, tWidget, tLocation and tStyle (pure visualization). • ‘Multiview pattern’ is supported by means of different layouts. • The appearance specification is adapted (not lost) when the APD structure changes: design reuse. Valencia June 2001
Generated Prototype (I) Valencia June 2001
Generated Prototype (II) Valencia June 2001
Generated Prototype (III) Valencia June 2001
Generated Prototype (IV) Valencia June 2001
Main Contributions • Modelling constructs for the definition of user-service interaction • Taxonomy of XML templates tackling the different perspectives involved in interface definition • Notion of Transformation Rule for Pattern implementation • Case Tool to support the OO-H design process, with shortcuts for the construction of the different diagrams Valencia June 2001
Future Work • Detection of new Patterns and inclusion of correspoding TR in the CASE tool • Inclusion of Frameworks, with the same TR philosophy • Inclusion of Advanced Personalization Features • Event Modelling • Client Logic Modelling • ... Valencia June 2001
For further comments... ccachero@dlsi.ua.es jgomez@dlsi.ua.es aparraga@dlsi.ua.es opastor@dsic.upv.es THANKS FOR YOUR ATTENTION!!! Valencia June 2001