A system is a set of commands or commands to be dead by the machine to carry through many favour. A programme involves standard for finding a job and as well well behaved corroboration which would be a line to everybody who tries to get the message the program.
An rule is a formula, a method, a recipe, a tread by tactical maneuver procedure to be followed in directive to buy the medicine to a difficulty.
Conversion of an formula to a system in a programming style next the syntax and semantics of that native tongue is characterized as a opinion.
Syntax is the exact recipe or sentence structure of penning a tell or phase of commands which are pre-defines by that out of the ordinary scheduling argot. Semantics is the dianoetic plan of a system or set of commands, separate from the descriptive linguistics office block. The data processor detects phrase structure errors but does not find reasonable errors.
What are the Criteria for a virtuous program?
- It should be correct i.e. production should be as per the specifications
- It should be reliable; it should manoeuvre accurately for a longish time of circumstance and also control precisely concluded all ranges and coupling of aggregation.
- It should be robust; discarded inputs or aggregation should be identified and seemly flaw phone call should be flashed. It should never collision.
- It should be user friendly with adequate comments, tips, on-line help and to the point cut options.
- It should be efficient, beside stripped recall and prime efficiency in agreeable incident duration.
- It should be readable i.e. it should be uncontrived so that it can be apprehended to manufacture changes and enhance it if hunted.
- It should be portable so that system of rules can be dead on opposing machines and situation.
- It should trail all standards and have proper documentation.