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QTP: Object Repository, Descriptive Programming and Beyond. Prepared by: Igor Gershovich. Object Repository vs. Descriptive Programming –what to use?. There really is no “best way”

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QTP: Object Repository, Descriptive Programming and Beyond

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Qtp object repository descriptive programming and beyond

QTP: Object Repository, Descriptive Programming and Beyond

Prepared by: Igor Gershovich

Object repository vs descriptive programming what to use

Object Repository vs. Descriptive Programming –what to use?

  • There really is no “best way”

  • Use the method that gives your company the best ROI, whether that be Object Repository (OR), Descriptive Programming (DP) or a mixture of both

Or pros and cons

OR Pros and Cons


  • GUI Front end to examine all the objects in the repository

  • Highlight in Application feature is great tool to walk the object tree

  • No need to modify the script when object properties changes

  • Easy to identify objects in AUT by Object Logical names

  • Can be created independently from scripts

Or pros and cons1

OR Pros and Cons


  • Additional layer to maintain

  • Unnecessary objects can be created

  • Multiple users cannot concurrently save/write to the shared OR

  • It won’t eliminate the need for Descriptive Programming in most of cases

Dp pros and cons

DP Pros and Cons


  • It’s a white box

  • Compatible with different QTP versions

  • Code portability is high

  • Easy to mass update

Dp pros and cons1

DP Pros and Cons


  • Lower Code Readability and requires more comments, like “what object is accessed”

  • Potentially slower to create

  • To highlight an object in the application requires utilizing the “Highlight” method

What is object repository

What is Object Repository?

  • Object Repository is a place where QTP stores learned objects

  • QTP uses default Object Identification properties: mandatory and assistive to learn objects into OR

Object repository

Object Repository

Logical Name


Or object identification default properties

OR: Object identification default properties

Script playback using or

Script playback using OR

  • QTP finds the Object in Object Repository using object Logical Name and Object Hierarchy

  • QTP retrieves Test Object properties from OR

  • QTP searches actual application for the Object with the same properties as the OR Test Object and performs user action

Script playback using descriptive programming

Script playback using Descriptive programming

  • QTP searches the Application Under Test (AUT) for the Object using Descriptive properties and performs user action

Descriptive programming when and why

Descriptive programming – when and why?

Consider using DP in following cases:

  • Dynamic object properties

    Example: Link Logout <User Name>

  • Same objects on every page

    Example: Buttons – Next, Back, Cancel, OK

  • Lots of similar objects on one page

    Example: table with many First & Last name text boxes

Different ways to work with objects

Different ways to work with objects

Different ways to work with objects1

Different ways to work with objects

Example for Passenger 1 First Name

Childobjects method using collection object

ChildObjects method – using Collection Object

Childobjects method using collection object1

ChildObjects method – using Collection Object

Last Name fields are populated

To ro and object

TO, RO and .Object

  • .GetTOproperty/SetToProperty refers to the properties stored in OR

  • .GetROProperty property refers to the AUT Object property (Run-time)

  • .Object.<property/method> refers to the AUT Object NATIVE properties/methods

Better names for object spy radio buttons

Better names for Object Spy radio-buttons

Run-Time NATIVE Object

Run-Time QTP (Test) Object

Object run time properties from aut getroproperty

Object Run-Time Properties from AUT (GetRoProperty)

Run time native object properties methods from aut object

Run-Time “Native” Object Properties/Methods from AUT (.Object)

Test object properties from or set gettoproperty

Test Object Properties from ORSet/GetToProperty

Regular expressions in or example server independent page object

Regular Expressions in ORExample: Server independent Page object

1. Click on Property value to access RegEx

2. Click RegEx Icon

Regular expressions in or

Regular Expressions in OR

Regular expressions in or1

Regular Expressions in OR

RegEx icon

Object smart identification

Object Smart Identification

  • Smart Identification is not Artificial Intelligence

  • SI uses loose/unreliable object recognition

  • It’s recommended to disable SI for each and every page/window/control using the Tools->Object Identification dialog (Recording)

  • Another way to disable SI: File -> Settings -> Run -> Check the "Disable Smart Identification during run session" check box (Run-Time)

Smart identification si recording options

Smart Identification (SI) Recording Options

SI Checkbox

Smart identification si run option

Smart Identification (SI) Run Option

SI Checkbox



  • QA Forums – www.sqaforums.com

  • HP/Mercury QTP User guide

  • Knowledge inbox (by Tarun Lalwani) - http://www.knowledgeinbox.com/

  • Microsoft TechNet - http://www.microsoft.com/technet/scriptcenter/

Igor gershovich

Igor Gershovich

  • E-Mail: igershovich@connectedtesting.com

  • Phone: 720-933-9395

  • www.connectedtesting.com

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