1 Murali Mani Topics projects in databases and web applications and XML Database Systems Research Lab @cs.wpi.eduWebpages:

2 Databases making their data accessible to web applications.

3 XML Views over Relational DBs Database (Oracle) (Oracle) XMLview mapping Xpath/Xquery

4 Area 1: ER-2-XML  Convert ER Schemas to XML Schemas  Ideas :  Extend ER Model to capture more semantics  Map extended ER Model into an XML schema  Retrieve data from database  Return result in XML  Status: initial tool implemented by prior MQP team and available for download.  Paper : published in XSym’04.

5 Area 2: Updating XML Views of Relational Databases  CoT defines a specific XML View over RDB  Tasks :  Study how to translate updates specified over such views  Develop simple translations for insert, delete and modify\  Status: Prior MQP team has worked on this, more cases can be added.

6 Elke A. Rundensteiner Topics projects in database and Information systems, such as, web information systems, distributed databases, Etc. Database Systems Research Lab Office: Fuller 238 Phone: x – 5815 Webpages:

7 Project Topics in a Nutshell:  Distributed Data Sources:  EVE : Data Warehousing over Distributed Data Sources  TOTAL-ETL : Distributed Extract Transform Load Tools  Web Information Systems:  RAINBOW : XML to Relational Database Management  MASS : Native XQuery Processing System  Databases and Visualization:  Visualization-Driven Data Caching  Prefetching based on User Access Patterns  Stream Monitoring Systems:  Query Engine of Data Streams  Monitoring Applications: Motion

8 CAPE : Engine for Querying and Monitoring Streaming Data Example of Stream Data Applications: Market Analysis –Streams of Stock Exchange Data Critical Care –Streams of Vital Sign Measurements Physical Plant Monitoring –Streams of Environmental Readings

9 Databases Upside Down Databases Upside Down data Query data streams of data static data Standing queries one-time queries

10 MQP Projects in CAPE  Develop new services for core engine:  Scheduler of query flow graphs  Data shedder under fluctuating loads  Distributed query processing  Develop stream applications  e.g.: TRAFFIC, SENSORS, HEALTH, …  Load real data streams : traffic simulation  Develop useful queries, like “average density in city region X over last 5 minute window”  Provide usable GUI and visual result for monitoring

11 TotalETL MQP Projects  General: Data warehousing and collaboration workflow management tool suites  Current MQP Project: Developed a collaboration server, complete with session manager, project manager, job scheduler, and project repository.  Proposed MQP Projects:  Extend collaboration server to support scalable project execution by utilizing cluster of machines, java concurrent thread libraries for parallel project flows, better scheduling.  Develop client (GUI) that enables users to collaborative develop ‘projects’, as well as administrator GUI to monitor status of project executions.

12 If Questions, me: or visit DSRG at Fuller 319 & 318.