CLR Clarity Data Model Exam Version A 2025 – Epic Clarity
Certification Study Guide and Practice Test Questions
Prepare for the CLR Clarity Data Model Exam Version A (2025) with this comprehensive
study guide and practice test. Master Epic Clarity database concepts, reporting structure,
SQL queries, and healthcare data analytics to pass your certification on the first attempt.
• CLR Clarity Data Model Exam
• Epic Clarity certification exam
• CLR Clarity Version A study guide
Most networked items point to records. Some networked items point directly to a contact within a
record. - ANSWER-To identify whether a networked item links to a record or a contact look at the
Network section within the Item Editor. If the first field within that section reads Record pointer then the
link is to a record. If instead the first field reads Contact pointer then the link is to a contact.
Networked INI in Record Viewer - ANSWER-Record Viewer makes it easy to explore networked
relationships. To see the information contained in a linked record find a networked item and click on the
blue hyperlink in the items value. The link takes you to the networked record where you can continue
your search.
How does a networked item compare to a category item - ANSWER-Both networked items and category
items store a value from a list. A networked item points to an ID or contact within a master file. This
record or contact can store a wide variety of information depending on the master file.
A category item points to a value in a category list.
This category list contains little information other than the category value and name.
,Both networked items and category items get extracted to foreign key columns in Clarity. Networked
items often extract to Clarity columns that end in _ID and can be used as a foreign key to tables that
store records or contacts from the target master file. Category items extract to Clarity columns that end
in _C and can be used as foreign keys to ZC tables in order to look up the name of the category value.
When working with tables extracted from different records there is often more than one way to join two
tables together - ANSWER-Example There are multiple source columns in PAT_ENC_HSP that may link to
CLARITY_SER such as ADMISSION< DISCHARGE or FOLLOWUP_PROV_ID. If you would like your query to
show names of all three providers you would need to join to CLARITY_SER three times using each
separate source column
If an items add type is no add and the response type is single what element will be present in the
primary key of the table that extracts the item? - ANSWER-Record ID
What is the meaning of one row in my results (key question to ask when writing a report) - ANSWER-
When constructing your query take now of how cardinality of a join or prescence of a filter may modify
your reports granularity.
Starting a join with the most granular table will maintain a consistent granularity with each subsequent
join. - ANSWER-Linking between tables
Research on Chronicles - ANSWER-Save time and energy by starting research in Chronicles rather than
going straight to Clarity.
Understanding how the data is structured in Chronicles will allow you to better understand the structure
of Clarity.
Researching the record in the Record viewer will allow you to validate the data in the source and explore
link between data points.
You cannot trust the naming conventions in Clarity
Clarity Dictionary Foreign Keys - ANSWER-The foreign key section of Clarity Dictionary does not provide
all possible joins in Clarity and should only be used for the joins between category lists and ZC tables
Networked Items - ANSWER-Networked items in Chronicles define relationships between an item in one
master file and a record or contact.
,Each networked item will store the ID of a Chronicles record or contact.
A particular networked item will always reference the same master file.
Exmple: EPT 470 holds the ID of the user who last changed the patients address. No matter the patient
or user EPT 470 can only store the .1 of an EMP records.
This relationship is part of the item definition.
Finding a Networked INI - ANSWER-From a field in Hyperspace: CTRL Click in the field to find the item
information window. More will reveal the item information and Network INI.
From Record Viewer : Hover over the item to show Net. Or hover over the value to show Network to
database.
You may also open the linked record to find the network INI.
From Item Editor : Under the network section look for the value in Target INI
What value is stored in a networked item? - ANSWER-The .1 of a Chronicles record or the CSN of a
contact on a Chronicles record
You have a patient query and would like to display the name of the patients providers. Item EPT 18867
Admitting Provider is a networked item that points to the SER master file. How can you use Column
Search help to display the name of the admitting provider - ANSWER-Use Column Search on EPT 18867
to find the foreign key column in the starting table. You can also use Column Search on SER .2 to find the
table that stores provider names. Use the foreign key of the starting table to join to the primary key of
the destination table.T
True or False Would it be possible to have more than one copy of the same table in one report? Why or
Why not? - ANSWER-True because Chronicles master files can reference each other multiple times there
are multiple ways to link Clarity tables together.?
If an items response type is multiple what element will be present in the primary key of the table that
extracts the item? - ANSWER-LINE
What is the most common database object in Clarity - ANSWER-Extracted tables are the most common
database object in Clarity.
, The Clarity data model - ANSWER-simplifies the Clarity ETL process allowing data to move efficiently
from Chronicles to Clarity.
A number of view and derived tables have been developed by Epic - ANSWER-These database objects
obtain information from existing extracted tables and combine data together in one place for ease of
reporting.
ER Diagrams - ANSWER-Entity Relationship Diagram. A visual tool that shows relationships between
database objects relevant to a particular reporting area.
Contain information such as:
Common tables and their links for a particular reporting area.
Relationship cardinality of frequent joins.
ER Diagrams will not document all possible joins between Clarity tables.
Data Mart - ANSWER-Subset of date designed to meet the needs of specific reporting area.
Views and Derived tables are considered SQL based data marts which use information already stored in
Clarity database.
Dependent Database Objects - ANSWER-Section of the Summary tab. Provides a list of Clarity tables and
columns and even views and derived tables that form the underlying structure of a given database
object.
Clarity Console verifies that all dependent database objects have finished loading data before running
any scripts to populate derived tables.
Entity - ANSWER-A person, place or concept about which information is kept. An entity is a database
object in the Clarity Data Model.
Relationship - ANSWER-An association between two entities. A relationship is a foreign key in the Clarity
Data Model
Parent - ANSWER-An entity that contributes a foreign key to another entity. The one side of a one to
many relationship
Certification Study Guide and Practice Test Questions
Prepare for the CLR Clarity Data Model Exam Version A (2025) with this comprehensive
study guide and practice test. Master Epic Clarity database concepts, reporting structure,
SQL queries, and healthcare data analytics to pass your certification on the first attempt.
• CLR Clarity Data Model Exam
• Epic Clarity certification exam
• CLR Clarity Version A study guide
Most networked items point to records. Some networked items point directly to a contact within a
record. - ANSWER-To identify whether a networked item links to a record or a contact look at the
Network section within the Item Editor. If the first field within that section reads Record pointer then the
link is to a record. If instead the first field reads Contact pointer then the link is to a contact.
Networked INI in Record Viewer - ANSWER-Record Viewer makes it easy to explore networked
relationships. To see the information contained in a linked record find a networked item and click on the
blue hyperlink in the items value. The link takes you to the networked record where you can continue
your search.
How does a networked item compare to a category item - ANSWER-Both networked items and category
items store a value from a list. A networked item points to an ID or contact within a master file. This
record or contact can store a wide variety of information depending on the master file.
A category item points to a value in a category list.
This category list contains little information other than the category value and name.
,Both networked items and category items get extracted to foreign key columns in Clarity. Networked
items often extract to Clarity columns that end in _ID and can be used as a foreign key to tables that
store records or contacts from the target master file. Category items extract to Clarity columns that end
in _C and can be used as foreign keys to ZC tables in order to look up the name of the category value.
When working with tables extracted from different records there is often more than one way to join two
tables together - ANSWER-Example There are multiple source columns in PAT_ENC_HSP that may link to
CLARITY_SER such as ADMISSION< DISCHARGE or FOLLOWUP_PROV_ID. If you would like your query to
show names of all three providers you would need to join to CLARITY_SER three times using each
separate source column
If an items add type is no add and the response type is single what element will be present in the
primary key of the table that extracts the item? - ANSWER-Record ID
What is the meaning of one row in my results (key question to ask when writing a report) - ANSWER-
When constructing your query take now of how cardinality of a join or prescence of a filter may modify
your reports granularity.
Starting a join with the most granular table will maintain a consistent granularity with each subsequent
join. - ANSWER-Linking between tables
Research on Chronicles - ANSWER-Save time and energy by starting research in Chronicles rather than
going straight to Clarity.
Understanding how the data is structured in Chronicles will allow you to better understand the structure
of Clarity.
Researching the record in the Record viewer will allow you to validate the data in the source and explore
link between data points.
You cannot trust the naming conventions in Clarity
Clarity Dictionary Foreign Keys - ANSWER-The foreign key section of Clarity Dictionary does not provide
all possible joins in Clarity and should only be used for the joins between category lists and ZC tables
Networked Items - ANSWER-Networked items in Chronicles define relationships between an item in one
master file and a record or contact.
,Each networked item will store the ID of a Chronicles record or contact.
A particular networked item will always reference the same master file.
Exmple: EPT 470 holds the ID of the user who last changed the patients address. No matter the patient
or user EPT 470 can only store the .1 of an EMP records.
This relationship is part of the item definition.
Finding a Networked INI - ANSWER-From a field in Hyperspace: CTRL Click in the field to find the item
information window. More will reveal the item information and Network INI.
From Record Viewer : Hover over the item to show Net. Or hover over the value to show Network to
database.
You may also open the linked record to find the network INI.
From Item Editor : Under the network section look for the value in Target INI
What value is stored in a networked item? - ANSWER-The .1 of a Chronicles record or the CSN of a
contact on a Chronicles record
You have a patient query and would like to display the name of the patients providers. Item EPT 18867
Admitting Provider is a networked item that points to the SER master file. How can you use Column
Search help to display the name of the admitting provider - ANSWER-Use Column Search on EPT 18867
to find the foreign key column in the starting table. You can also use Column Search on SER .2 to find the
table that stores provider names. Use the foreign key of the starting table to join to the primary key of
the destination table.T
True or False Would it be possible to have more than one copy of the same table in one report? Why or
Why not? - ANSWER-True because Chronicles master files can reference each other multiple times there
are multiple ways to link Clarity tables together.?
If an items response type is multiple what element will be present in the primary key of the table that
extracts the item? - ANSWER-LINE
What is the most common database object in Clarity - ANSWER-Extracted tables are the most common
database object in Clarity.
, The Clarity data model - ANSWER-simplifies the Clarity ETL process allowing data to move efficiently
from Chronicles to Clarity.
A number of view and derived tables have been developed by Epic - ANSWER-These database objects
obtain information from existing extracted tables and combine data together in one place for ease of
reporting.
ER Diagrams - ANSWER-Entity Relationship Diagram. A visual tool that shows relationships between
database objects relevant to a particular reporting area.
Contain information such as:
Common tables and their links for a particular reporting area.
Relationship cardinality of frequent joins.
ER Diagrams will not document all possible joins between Clarity tables.
Data Mart - ANSWER-Subset of date designed to meet the needs of specific reporting area.
Views and Derived tables are considered SQL based data marts which use information already stored in
Clarity database.
Dependent Database Objects - ANSWER-Section of the Summary tab. Provides a list of Clarity tables and
columns and even views and derived tables that form the underlying structure of a given database
object.
Clarity Console verifies that all dependent database objects have finished loading data before running
any scripts to populate derived tables.
Entity - ANSWER-A person, place or concept about which information is kept. An entity is a database
object in the Clarity Data Model.
Relationship - ANSWER-An association between two entities. A relationship is a foreign key in the Clarity
Data Model
Parent - ANSWER-An entity that contributes a foreign key to another entity. The one side of a one to
many relationship
