ADA

 

·         Readability-

 

Ada consists of 331 pages of BNFs which is a higher value when compared to ALGOL-60. Due to this, it was not possible to explore and learn the language in a short period of time. Also, Ada allows users to declare their own types which resulted in unnecessary complexity, which impacted the readability of the program. Ada’s use of begin and end increases the readability and also solves the dangling else problem. Furthermore, Ada used “if” and “end if” statements in the start and end of the control structure which increased the readability.

 

·         Writability-

 

Ada allows block structure/ procedures which eliminates the need of repeating codes. Also, the factors affecting readability also affects writability as a result, the writability of Algol is also acceptable. Furthermore, Ada uses “and then” Boolean operator, which is an easy way of representation, which increases the expressivity of the program.

 

·         Reliability-

 

Ada provides type checking which allows the compiler to check for the defined types and its range at its compile time which positively impact on its reliability. Also, Ada provides exception handling which also contributes to non-error prone programs. As a result, Ada can be considered as more reliable compared to other languages.