Long Inactivity

The mart_course_offering.long_inactivity mart surfaces students actively enrolled in courses in the current term with extended time without activity in the LMS. The mart_course_section.long_inactivity mart also includes this information, but at the course section level.

Extended time without activity is defined as either:

1. A person is actively enrolled in a course, but no Caliper events have been generated.

2. A person is actively enrolled in a course, but the latest Caliper event is at least 5-days in the past.

BQ Prod Dataset Location

• mart_course_offering

• mart_course_section

Interactive Mart Dependency Diagram

The following visualization shows the construction of this data mart defined in the UDP marts repository. More information on the repository and diagram can be found on this marts page.

Click here to open the interactive chart.

mart_course_offering.long_inactivity

Schema

Mart/Course_offering/long_inactivity

	Type	Description
udp_course_offering_id	INTEGER	The UDP ID of the Course offering.
lms_course_offering_id	STRING	The LMS ID of the Course offering.
udp_person_id	INTEGER	The UDP ID of the person.
lms_person_id	STRING	The LMS ID of the person.
academic_organization_array	ARRAY<STRING>	Array of string values for the academic organization(s)
academic_organization_display	STRING	The name of the academic organization(s) as a string with comma separation.
academic_term_name	STRING	The name of the academic term, i.e. Fall 2020.
term_begin_date	DATE	The start date for the academic term.
term_end_date	DATE	The end date for the academic term.
course_offering_title	STRING	The title of the Course offering, i.e. Linear Algebra.
course_start_date	DATE	The start date of the Course offering.
course_end_date	DATE	The end date of the Course offering.
instructor_display	STRING	An array of all the instructors' names for a Course offering written as a string.
instructor_name_array	ARRAY<STRING>	An array of all instructors’ names for a Course offering.
instructor_email_address_array	ARRAY<STRING>	An array of all instructors' emails for a Course offering
instructor_email_address_display	STRING	An array of all instructors' emails for a Course offering written as a string.
person_name	STRING	The name of the person.
last_activity	DATETIME	The time of the person’s last activity in the Course offering.
has_no_activity	INTEGER	Indicates if the user has no recorded activity in the course. 1 = no activity; 0 = any activity
days_since_last_activity	INTEGER	The number of days between the last recorded activity and the current datetime.
is_5_days	INTEGER	Indicates if the days since last activity is greater than or equal to 5 days. 1 = 5 days or greater. 0 = otherwise.
is_7_days	INTEGER	Indicates if the days since last activity is greater than or equal to 7 days. 1 = 7 days or greater. 0 = otherwise.
is_10_days	INTEGER	Indicates if the days since last activity is greater than or equal to 10 days. 1 = 10 days or greater. 0 = otherwise.
is_14_days	INTEGER	Indicates if the days since last activity is greater than or equal to 14 days. 1 = 14 days or greater. 0 = otherwise.

Mart/Course_section/last_activity

The course section mart includes all the fields found in the course offering mart, as well as two more fields, which are presented in the table below.

Field Name	Type	Description
udp_course_section_id	INTEGER	The UDP ID of the Course section.
lms_course_section_id	STRING	The LMS ID of the Course section.

Fields

last_activity

This field is pulled from the mart_course_offering.last_activity datamart. Per person, per course we pull the most recent event timestamp, regardless of event type. This signifies the latest activity of any type for a student in a course.

has_no_activity

For instances of active enrollment in the current term, an absence of Caliper events is checked here. If no Caliper events generated by the enrolled student can be found, we set this flag to 1. Otherwise, 0.

days_since_last_activity

This is calculated using the DATE_DIFF function, and an integer representing the number of days between the current date and the last_activity for the person-course_offering/section:

COALESCE(DATE_DIFF(current_datetime(),last_activity, DAY), null)

A COALESCE to null is used for instances where has_no_activity applies.

is_X_days

These fields also adhere to a DATE_DIFF calculation with the current date. For the is_5_days field, the following logic is applied:

CASE
    WHEN last_activity is null then null
    WHEN DATE_DIFF(current_datetime(),last_activity, DAY) >= 5 then 1 
    ELSE 0
END AS is_5_days

Again, we respect nulls first in cases of no activity. The only change for the 7, 10, and 14-day thresholds is in the >= check.

Criteria for Actively Enrolled in Current Term

For the active academic term, we look for all rows in the academic_term entity whose term_begin_date is before the current date and whose term_end_date is after the current date. We filter out all courses and terms with dates outside of these bounds or terms with null values for begin and/or end dates.

For the "actively enrolled" students, we look at the role_status and enrollment_status values in course_section_enrollment.

Excluded role_status values:

• Dropped

• Wait Listed

• Not Enrolled

• No Data

• None

• Completed

Excluded enrollment_status values:

• Inactive

• Not Enrolled

• No Data

• None

• Completed

OR logic is used here; if either a role_status or enrollment_status in the exclusion lists above surfaces for a student, that enrollment is filtered out of the final results.