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Domain Specific Mashups

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Domain Specific Mashups

  1. 1. Domain-Specific MashupsMashups that Speak the Language of the User.<br />Muhammad Imran, Stefano Soi, Florian Daniel, Fabio Casati, Maurizio Marchese<br />
  2. 2. Outline <br />Mashups introduction<br />Mashups emergence, & why people are interested<br />Related concepts and work<br />Problem statement<br />Our aim, vision & concepts<br />Status and future work<br />
  3. 3. What is a Mashup?<br />“A mashup is a web application that integrates data, application logic, <br />and/or user interfaces (UIs) sourced from the Web. “<br />Craig’s List data<br />Google Maps<br />Mashup<br />Data<br />API<br />UI<br />
  4. 4. Mashup Types [Wikipedia.org]<br />Business (enterprise) Mashups<br />Combines their own resources, application and data with external services.<br />Consumer Mashups<br />It combines data from multiple public sources in the browser and organizes it through a simple browser user interface.<br />Data Mashups<br />Combine similar types of media and information from multiple sources into a single representation. The combination of all these resources create a new and distinct Web service that was not originally provided by either source.<br />
  5. 5. Why Mashups are getting famous?<br />Mashups facilitate non-programmers to<br />Develop their applications<br />Situational applications<br />Ad-hoc and specific need applications<br />Short-Lifespan applications<br />www.programmableweb.com <br />Public APIs 3274<br />Public Mashups 5829<br />
  6. 6. Related concepts and work<br />Workflow management, Service composition<br />BPEL (Business Process Execution Language)<br />BPMN (Business Process Modeling Notations) [BPMN v2.0]<br />UML (Activity Diagrams)<br />Mashup tools<br />Yahoo Pipes [pipes.yahoo.com]<br />Provides only generic features (e.g., looping, feed manipulation).<br />Support for UI integration is missing.<br />Good understanding of data formats are required.<br />mashArt[Florian Daniel et al. 2009]<br />MarcoFlow[Florian Daniel et al. 2010]<br />
  7. 7. Problem Statement<br />It is non-trivial/almost impossible to <br />design generic tools to cover wide range of application domains.<br />Powerful enough to enable the specification of non-trivial logic.<br />Simple enough to be used by non-programmers.<br />So we need to find right-balanceamong<br />Generality<br />Expressiveness<br />Simplicity<br />Our proposal is to reduce Generality, and to be Specific.<br />
  8. 8. What we aim at?<br />Domain-Specific mashups<br />Domain-Specific mashup tool<br />“A domain-specific mashup is a mashup that describe a composite <br />domain process that manipulates domain concepts via domain activities and processes.”<br />“A domain-specific mashup tool is a a development and execution <br />environment that enables domain experts to develop and execute domain-specific mashups via a syntax that exposes all the features of the domain.”<br />
  9. 9. UniTN Departments Evaluation Process<br />Domain Concepts<br /><ul><li>Publications
  10. 10. Researchers
  11. 11. Metrics
  12. 12. …</li></ul>Domain Processes<br /><ul><li>Compute metric
  13. 13. Extract data
  14. 14. Filtering
  15. 15. …</li></li></ul><li>Solution Space<br />We tackle the problem in three aspects<br />Domain Concept Model: to express domain data and objects.<br />Mashup Meta-Model: which includes<br />A generic mashup meta-model(MM)<br />A domain process model (PM)<br />A syntax map (union of MM & PM) + its symbol<br />A set of domain instances for components<br />Implementation of DTM<br />
  16. 16. Domain Concept Model<br />
  17. 17. Mashup Meta-Model (MM)<br />Mashup 𝑴={𝑪, 𝑷, 𝑳} consists of <br />A set of components 𝑪<br />A set of data pipes 𝑷<br />A layout 𝑳<br />A component 𝑐=𝐼𝑃𝑇, 𝑂𝑃𝑇, 𝐶𝑃𝑇, 𝑇𝑦𝑝𝑒, 𝐷𝑒𝑠𝑐<br />A pipe 𝑝 ∈𝐼𝑃𝑇 ×{𝑂𝑃𝑇 ∪𝐶𝑃𝑇}<br />A layout 𝑙={𝑃𝐻}<br />A set of placeholders (HTML div or iframe)<br /> <br />
  18. 18. MM with generic & specific syntax<br />Injection of the domain processes (PM) in MM.<br />
  19. 19. Domain-Specific Mashup Model<br />
  20. 20. Components Behavior & MM Semantics<br />Execution of a mashup is initiated by the user.<br />A component is ready for execution when all ports (IPT, CPT) filled with data.<br />A component executes and process the data at IPTs and generates output to OPTs.<br />
  21. 21. Platform Architecture<br />Shared Memory<br />Structure<br />mashArt<br />Multiple copies of the domain schema in cache or database.<br />UCL+<br />MDL+<br />Domain Concept<br />XSD<br />Database<br />Memory <br />Manager<br />Services<br />Mashup UI<br />(JavaScript)<br />Scientific Resource Space<br />Services<br />Database Interface (Hibernate)<br />REST Calls<br />Services<br />Browser<br />MashupEngine<br />Components Repository<br />Compositions Repository<br />Services<br />Database<br />Services<br />ResevalMashDatabse<br />Users profiles<br />MDL(mashArt description language) UCL (Universal composition language)<br />
  22. 22. Status and future work<br />Our starting point is mashArt tool. <br />mashArt has the capability to integrate both UI & application.<br />It provides a meta-model which is similar to ours (extensions are needed). <br />IPTs, OPTs and CPT can be mapped to operations, events and configuration parameters in mashArt.<br />MDL injection with domain schema.<br />Components implementation (as services) at server side are going on.<br />Server side shared memory is being implemented.<br />
  23. 23. Q & A<br />

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