How do we decide as to which recording mode from Context Recording (Normal), Analog Recording or Low Level Recording do we select for an application? What is uniqueness in each recording mode?
Generally we will go for normal recording where QTP can easily recognizes the objects. There are some situations like usage of third party controls in the AUT and menu selection which is having four-levels of menus where it will find difficult to find the objects. Then we will go for Low level recording mode where we are capturing parameters with precision through QTP.
Above answer was rated as good by the following members: kalyan_kk, ss100
Generally we will go for normal recording where QTP can easily recognizes the objects. There are some situations like usage of third party controls in the AUT and menu selection which is having four-levels of menus where it will find difficult to find the objects. Then we will go for Low level recording mode where we are capturing parameters with precision through QTP.
1) Normal recording is also known as context sensitive recording. This is the default recording mode in QTP which is used to record the operations on standard GUI objects. For each and every operation it generates (statement) script.
2) In analog recording we will record mouse and keyboard operations with respect to window or desktop co-ordinates. Here it generates single statement for all operations.
Note:
a) If you take desktop coordinates u may get wrong output if the application is moved from one place to another.
b) If you take window coordinates you will get the correct output even the application is moved from one place to another.
3) Low level recording is used to record the operations on the objects which are not recognised by the QTP.
It depends on the AUT(Application under test) if QTP is not able to identify the object then we go for the analog recording which records the pointer coordinates on the screen
3) Record all object if their Add Ins is installed
Analog Recording:
1) Enables you to record exact keyboard and mouse movements in relation to either the application window or Screen. Useful for such operations that can not be recorded at the level of objects like Signature Drawing Images.
2) Record the exact coordinates and save in a track file. That file can not be editable and can not be seen in expert View. This file is associated with Actions
3) Analog Recording is of two type
a) Relative to screen
b) Relative to Application Window
Low Level Recording:
Enable to record the Object either QTP is unable to recognize the Object or Specific operation.This can be recorded at the level of Objects.
In General Context Recording mode is followed for recording the actions. In some cases 3rd party components/tools is not supported by the QTP Plugins. On that time Analog Recording or Low Level Recording is used while recording the unsupported objects is handled with defined logical name and that cane be used for test.
There are 3 types of recording mode in QTP: 1. Context-Sensitive or Normal Recording mode: This is the default recording mode in QTP. It enables recording on standard GUI objects. For each operation a statement is generated in the script.
2. Analog Recording mode: Enables recording of exact mouse or keyboard operations relative to the a specified window or relative to a screen. e.g drawing a mouse signature or working with drawing applications. Recording relative to a specified window: Used if the objects are located in a particular window and the window does not move during recording.
Recording relative to a screen: Used if the objects are located in more than window or the window moves while recording. e.g drag and drop of objects.
3. Low-level Recording: Enables recording of those objects or environment not recognized by QTP. If location of object is important then low level reording should be used. It records in terms of x-y co-ordinates.
Analog and low-level recording modes requires more disk space.
Normal Recording mode is the normal default recording mode. Analog recording mode is typically used for recording drag and drop feature. Low Level Recording is used identifying an object with the coordinates of a object
0 
1