Automated Code Review Vs Manual Code Review

Loading…

What is Code Review?

Code Review is an integral process and an ongoing practice during the software development phase. It helps to identify defects and bugs before the testing phase. It is an agile process where pieces of source code are made available to the peers for inspection with an aim to catch bugs, highlight mistakes, remove vulnerabilities before they form a part of the product.

Code review is a two-way conversation where both the author of the code and its reviewer communicate and learn from each other. Thus it can also be thought of as a knowledge-sharing process.

Why Code Review?

Firstly, Finding bugs early in the life cycle is always less expensive. Sooner the better. Infact, a post product bug cost may be 30X more than its cost if found during the coding phase. 

Relative cost to fix bugs based on the time of detection

Secondly, code review would help visualize aspects of the code that may otherwise go unnoticed.  This way a team can get a holistic view of quality and be able to identify the problems better.

Manual and Automated Code Review

In a Manual Code Review (MCR), the source code is read line by line to check for possible vulnerabilities. This involves a lot of skills, experience, and patience. The issues or errors discovered in this review will greatly help to increase the efficiency of the firm.

With an Automated Code Review (ACR), there is a set of predefined rules that are determined for the code to comply with. Software tools provide assistance in ACR that displays a list of warnings that are in violation of programming standards.

With automation, software tools provide assistance with the detection process. This is what makes it easier by improving the entire process by providing an automated or a programmer-assisted way to correct the errors found. This is a component for mastering Software Development Tools.Software tools provide assistance in ACR that displays a list of warnings that are in violation of programming standards.

So how to decide which works best for you? Here’s a comparison that we thought would help you make this decision.

Differences Between Manual & Automated Code Review

Manual code review vs automated code review
Fig: Manual Code Review vs Automated Code Review

1) Time:

MCR – Because the user reads every single line of the code, it is easy to gather the intentions of the developer. But even if that is the strength, it takes a lot of time to look and read these codes line by line.

ACR – No wonders it’s fast! Automation software can read thousands of lines of code very swiftly. But these lack the skills of identifying the business logic and the intentions of the developer.

2) Examination:

MCR – This method is very useful in crossing the rarely visited code paths. Few techniques such as penetration testing examine paths that have inputs fed, but lesser-traveled paths or hidden paths can be missed. But a rigorous manual code review is better in identifying these paths that are misunderstood by automated tools.

ACR – These intentionally hidden paths can also be easily explored by automation tools that are much more sophisticated but the automated code review can miss the intentions behind these.

3) Subtle Mistakes:

MCR – Because the reviews are done by reviewers on an individual basis, it is very possible that the human eye can miss a few vulnerabilities that are related to integration or other isolated problems.

ACR – These mistakes and small errors that are missed in manual reviewing are easily caught by automated systems. However, this automation cannot go beyond a particular limit of reviewing which can be done by manual code review.

4) Costs:

MCR – Having trained and skilled engineers to handle an efficient manual code review comes attached to its obvious costs. It takes years of experience before a reviewer is able to adequately able to manage reviews.

ACR – It isn’t necessary for reviewers to have the entire knowledge and skills of reviewing. The automation software is programmed to issue warnings of potential errors. ACR does require development skills to set it up.

Pravin Uttarwar, CTO Mindbowser Group

At Mindbowser we bring the best of technology and knowledge for founders. In case you would like to discuss your options further, feel free to book a 30 minutes free consultation call with me!

Get Free Consultation!
coma

Conclusion:

Both these methods of review have their own pros and cons. Thus we understand the difficulty in choosing which one to go ahead with. Generally, the trend is now shifting towards automated code review because of time, cost and effort but still, many companies prefer to have a human touch to it.

Pravin Uttarwar

CTO, Mindbowser

Pravin has 16+ years of experience in the tech industry. A high energy individual who loves to use out of the box thinking to solve problems. He not only brings technical expertise to the table but also wears an entrepreneurial hat – benefiting any project with cost savings and adding more value to business strategy. Pravin is also chapter director of StartupGrind Pune, hosting events and startup conferences.
Reach out to Pravin at pravin.uttarwar@mindbowser.com

Get in touch for a detailed discussion.

Hear From Our 100+ Customers
coma

Mindbowser helped us build an awesome iOS app to bring balance to people’s lives.

author
ADDIE WOOTTEN
CEO, SMILINGMIND
coma

We had very close go live timeline and MindBowser team got us live a month before.

author
Shaz Khan
CEO, BuyNow WorldWide
coma

They were a very responsive team! Extremely easy to communicate and work with!

author
Kristen M.
Founder & CEO, TotTech
coma

We’ve had very little-to-no hiccups at all—it’s been a really pleasurable experience.

author
Chacko Thomas
Co-Founder, TEAM8s
coma

Mindbowser is one of the reasons that our app is successful. These guys have been a great team.

author
Dave Dubier
Founder & CEO, MangoMirror
coma

Mindbowser was very helpful with explaining the development process and started quickly on the project.

author
Hieu Le
Executive Director of Product Development, Innovation Lab
coma

The greatest benefit we got from Mindbowser is the expertise. Their team has developed apps in all different industries with all types of social proofs.

author
Alex Gobel
Co-Founder, Vesica
coma

Mindbowser is professional, efficient and thorough. 

author
MacKenzie R
Consultant at XPRIZE
coma

Very committed, they create beautiful apps and are very benevolent. They have brilliant Ideas.

author
Laurie Mastrogiani
Founder, S.T.A.R.S of Wellness
coma

MindBowser was great; they listened to us a lot and helped us hone in on the actual idea of the app.” “They had put together fantastic wireframes for us.

author
Bennet Gillogly
Co-Founder, Flat Earth
coma

They're very tech-savvy, yet humble.

author
Uma Nidmarty
CEO, GS Advisorate, Inc.
coma

Ayush was responsive and paired me with the best team member possible, to complete my complex vision and project. Could not be happier.

author
Katie Taylor
Founder, Child Life On Call
coma

As a founder of a budding start-up, it has been a great experience working with Mindbower Inc under Ayush's leadership for our online digital platform design and development activity.

author
Radhika Kotwal
Founder of Courtyardly
coma

The team from Mindbowser stayed on task, asked the right questions, and completed the required tasks in a timely fashion! Strong work team!

author
Michael Wright
Chief Executive Officer, SDOH2Health LLC
coma

They are focused, patient and; they are innovative. Please give them a shot if you are looking for someone to partner with, you can go along with Mindbowser.

author
David Cain
CEO, thirty2give
coma

We are a small non-profit on a budget and they were able to deliver their work at our prescribed budgets. Their team always met their objectives and I'm very happy with the end result. Thank you, Mindbowser team!!

author
Bart Mendel
Founder, Mindworks