Introduction to Data Elements

Question 1

What is Data?

Answer 1

• Information that is stored by Pega 7
• May take one of two forms
  
  1. Rules
  2. Data Instances

Question 2

What is a Property?

Answer 2

• An element of an application that acts as a container for data,
• In other languages also knows as a data element or attribute
• Defines and labels a value that may be associated with a Class
• Can capture a single value or aggregate other properties and their values
• Each field used to collect new data or display existing data references a property
  *

Question 3

How is data displayed on a form?

Answer 3

By assigning a Property to a Control

Question 4

What is a Property Mode?

Answer 4

• One of eleven modes assigned to properties that determine the type of data that can be stored in a property
• At a conceptual level Modes include:
  
  • Single Value: Name
  • Array or Ordered List: Job Title (1), Job Title (2), Job Title (3)
  • Unordered List: Phone(Mobile), Phone(Home), Phone (Work)
• In general there are two types of Modes:
  
  • Value Modes - Describe a single piece of information
  • Page Modes - Describe a collection of related information

Question 5

What is a Property Type?

Answer 5

• The data that can be stored by a value-mode Property.
• A property can be defined to store one of ten different types of data:
  
  1. text
  2. identifier
  3. password
  4. encrypted text
  5. integer
  6. decimal
  7. date
  8. time
  9. date time
  10. true/false

Question 6

What is a Data Model?

Answer 6

• A data model is a representation of a data structure.
• It explains to us what our data objects are, and tells us what distinctive elements define them.

Question 7

How do you establish a relationship between two single-value Properties?

Answer 7

Through the use of Page Property Modes

Question 8

What are the two Property Modes Used most in Pega?

Answer 8

• Value-mode properties contain a single value, such as a date, or a name, or a telephone number.
  
  • a value-mode property can store one of 10 different types of data to represent text, number, date, time, or Boolean data.
• Page mode properties represent a data object – a representation of an entity such as a person, an order, or a vehicle.

Question 9

What are the 3 Page Mode Properties?

Answer 9

• Page
• Page List
• Page Group

Question 10

What is a Page?

Answer 10

• A Page is a single entity, such as an open position, or an item for sale.

Question 11

What is a Page List?

Answer 11

A Page List is a numerically ordered list, such as the specific items that make up a purchase request.

Question 12

What is a Page Group?

Answer 12

A Page Group is a semantically ordered list, such as a set of addresses – home and work.

Question 13

What is a Value List?

Answer 13

A single property that has an ordered list of text values.

Question 14

What is a Value Group?

Answer 14

A single property type that has an unordered set of values of any type.

Question 15

Why are Pages Used?

Answer 15

• Pages are used to group or act as a container for value-mode properties
• Pages provide the context for the Properties they contain

Question 16

What is a Data Transform?

Answer 16

• It transforms data in our application.
• Some examples include:
  
  • copying a value from one property to another,
  • adding numbers,
  • concatenating strings,
  • copying entire pages.
• Data Transforms can be called from a Flow Action or Connector

Question 17

How is the Clipboard used?

Answer 17

• To view and interact with in-memory data which can’t be readily seen via the applications UI
• it displays the properties defined on a page, and their values.

Question 18

What are the categories of Pages you can view via the Clipboard?

Answer 18

• User pages, contain data about the work being performed – such as updating an open case (for end users) or configuring a rule (for application designers).
• Data pages, contain any active data pages. Data pages are persistent, in-memory data sources that we can use to cache data and boost performance in our applications. We’ll learn about data pages in an upcoming lesson.
• Linked property pages, contain information from data objects referenced by a linked property. Linked properties are advanced data constructs, and outside the scope of this course.
• System pages, contain information about the operating environment, such as the active user and the active application.

Question 19

What is a Property Context?

Answer 19

• The reference to a property on a specific Page
• For example a .ZipCode value-mode property might be contained in two or more Pages such as .Vendor or .Client
• The context allows proper reference to .ZipCode as
  
  • .Vendor.ZipCode, or
  • .Client.ZipCode

Question 20

Where does Pega write data as the Case is being processed?

Answer 20

pyWorkPage

Question 21

What is the significance of the prefixes px, py, pz when referencing data?

Answer 21

• py - have access to view and change the data either through the application or the Clipboard
• px - can only view the data, is managed by Pega
• pz - Pega private property and system reserved