Post on 26-Dec-2015
transcript
WebCT VistaPowerLinks Reporting
InterfacesJohn Hallett
Senior Product ManagerWebCT, Inc.
John.Hallett@WebCT.com
Overview
• WebCT contains vast amounts of data
• Prior to WebCT Vista, this data was stored in a distributed, flat file database
• This made correlation and detailed data analysis almost impossible
Overview
• WebCT Vista introduced an SQL database server
• With that, detailed analysis became possible, but there was still a problem
Overview
• The Vista data schema is not exactly “intuitive”
• The DB is designed for functionality and performance, not for data extraction
• Relevant information can be spread out among many, many tables
• And the table schema can change from version to version
Overview
• The Vista Reporting Interfaces solve these problems by abstracting away from direct DB access
• The result is a set of “safe” database views containing the most relevant data all in one place
Why is this important?
Why is this important?
Why is this important?
Why is this important?
Why is this important?
Why is this important?
Why is this important?
Why is this important?
Details
• The Vista Reporting Interfaces provide seven tables
• 5 are live views, 2 are extracts
Details
• RPT_PERSON• Contains information on users:
– IDs (Login, person, and IMS)– Name (First, last, prefix, suffix)– Active/Inactive flag
Details
• RPT_LEARNING_CONTEXT• Contains information on LCs (E.g.
Course):– IDs (LC, Parent and IMS)– Name, type, # of childern– Start/end dates, last archived date, templates– # of members, path
Details
• RPT_LEARNING_CONTEXT_SIZE• Adds up data size in a given LC
– ID – Size of templates– Size of non-template files
Details
• RPT_MEMBER• Contains information on
memberships (enrollments):– Three columns: Person, LC, Role
Details
• RPT_TEMPLATE• Contains information on template
contents:– ID– Counts of all major Learning Objects in use
(quiz, questions, assignments, discussions, etc)
Details
• RPT_TRACKING• All tracked events
– User, LC, event type, time, dwell time, target name
• This can be a very large table• Unlike the tracking tool itself, tracked
events are not filtered by role (so it is possible to see designer actions)
Details
• RPT_GRADEBOOK• All grades, every student, every
course• Calculated columns are presented
as a formula
Details
• RPT_TEMPLATE and RPT_LEARNING_CONTEXT_SIZE are extracts, and must be scheduled via the UI
Details
It all comes together
It all comes together
Vista Enrollment by Department
It all comes together
Vista Tool Usage by Department
It all comes together
Average Final Grade vs Vista
Sessions
Questions?
Thank you
For more info, please contact me:
John Hallett
Senior Product Manager
WebCT, Inc
John.Hallett@WebCT.com