What is the Diff between Code Walk through & Code Review?
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Answer Posted / mehul
Code review
Code review is a phase in the software development process in which the authors of code, peer reviewers, and perhaps quality assurance (QA) testers get together to review code. Finding and correcting errors at this stage is relatively inexpensive and tends to reduce the more expensive process of handling, locating, and fixing bugs during later stages of development or after programs are delivered to users.
Reviewers read the code line by line to check for:
Flaws or potential flaws
Consistency with the overall program design
The quality of comments
Adherence to coding standards.
Code review may be especially productive for identifying security vulnerabilities. Specialized application programs are available that can help with this process. Automated code reviewing facilitates systematic testing of source code for potential trouble such as buffer overflows, race conditions, memory leakage, size violations, and duplicate statements. Code review is also commonly done to test the quality of patches.
Inspection
An inspection is, most generally, an organized examination or formal evaluation exercise. It involves the measurements, tests, and gauges applied to certain characteristics in regard to an object or activity. The results are usually compared to specified requirements and standards for determining whether the item or activity is in line with these targets. Inspections are usually non-destructive.
Non-Destructive Examination (NDE) or Non-Destructive Testing (NDT) describe a number of technologies used to analyze materials for either inherent flaws or damage from use. Some common methods are visual, Liquid or Dye Penetrant, Magnetic Particle, Radiography, Ultrasonics, eddy Current, Acoustic Emission and Thermography. In addition, many non-destructive inspections can be performed by a precision scale, or when in motion, a checkweigher.
A surprise inspection tends to have different results than an announced inspection. Leaders seeking to discover how well lower echelons in their organization are typically doing sometimes drop in unannounced to see what is going on and what conditions are. When an inspection is scheduled in advance, it gives people a chance to cover up or fix mistakes. A surprise inspection, therefore, gives inspectors a better picture of the typical state of the inspected object than an announced inspection.
Walkthrough
A walkthrough is a term describing the consideration of a process at an abstract level.
The term is often employed in the software industry (see software walkthrough) to describe the process of inspecting algorithms and source code by following paths through the algorithms or code as determined by input conditions and choices made along the way. The purpose of such code walkthroughs is generally to provide assurance of the fitness for purpose of the algorithm or code; and occasionally to assess the competence or output of an individual or team.
The term is employed in the theatrical and entertainment industry to describe a rehearsal where the major issues of choreography and interaction are practiced and resolved, prior to more formal "dress rehearsals".
The term is often used in the world of learning where a tutor/trainer will walk through the process for the first time. It is regarded as a literal walk through of the learning at the groups pace ensuring that everyone takes in the new knowledge and skills.
Something akin to walkthroughs are used in very many forms of human endeavour since the process is a thought experiment that seeks to determine the likely outcome(s) of an affair based on starting conditions and the effects of decisions taken.
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