Testing concept ...............

# Change the default company, user name and user initials in Office 2010.
In Office 2010, you can change the Company, Initials and Name for logged-in user. Open Windows Registry and navigate to HKEY_CURRENT_USER\ Software\ Microsoft\ Office\ Common\ UserInfo. On right hand side pane, edit the following keys:

Company: Set\modify Company name.

UserInitials: Set\modify logged in user initials.

UserName: Set\modify logged in user name.


# What is decision table and decision table testing?
Decision table is a table showing combination of inputs and/or stimuli(causes) with their associated outputs and/or actions(effects), which can be used to design test cases. Decision table testing is a black box test design technique in which test cases are designed to execute the combinations of inputs and/or stimuli(causes) shown in a decision table.


# Mention different testing techniques?
Testing techniques may be broadly classified in Static testing and Dynamic testing.

Static testing techniques do not execute the code and are generally used before any tests are executed on the software. Reviews, walkthroughs and inspection constitute static testing techniques.

Dynamic testing techniques are sub divided into three categories:

i. Specification based (black box): Specification based include both functional and non functional techniques. Further equivalence partitioning, boundary value analysis, decision tables and state transition testing are specification based techniques

ii. Structure based (white box): Structure based testing techniques use the internal structure of the software to derive test cases. They are white box techniques. Code coverage, decision coverage, statement coverage, structural testing and white box testing are structure based techniques.

iii. Experience based: In experience based techniques, peoples knowledge, skills and background are a prime contributor to the test conditions and test cases. Error guessing and exploratory testing come under experience based testing techniques.


# What is a compiler?
Compiler is a software tool that translates programs expressed in a high order language into their machine language equivalents.


# What is back-to-back testing?
Back-to-back testing is the testing in which two or more variants of a component or system are executed with the same inputs and outputs are compared and analyzed in cases of discrepancies.


# What is top down testing?
Top down is incremental approach to integration testing where the component at the top of the component hierarchy is tested first, with lower level components being simulated by stubs. Tested components are then used to test lower level components. The process is repeated until the lowest level components have been tested.


# What is state table?
State table is a grid showing the resulting transitions for each state combined with each possible event, showing both valid and invalid transitions.


# What is state diagram?
State diagram depicts the states that a component or system can assume and shows the events or circumstances that cause and/or result from a change from one state to another


# What is state transition testing?
A black box test design technique in which test cases are designed to execute valid and invalid transitions.


# What is scalability and its testing?
The capability of the software product to be upgraded to accommodate increased loads is scalability. Testing to determine the scalability of the software product is called scalability testing.