Difference between Cleanroom Development and Conventional Development

Different approaches have been used by the software developers for the development of software. And with the passage of time new technologies have been introduced in order to make the software devoid of error or to minimize error. In the past the software industry was only familiar with the conventional technique for development. But this technique is not useful where highly security issues are involved.  Due to this a new technique was introduced for complicated programs and different methodologies have been used in this technique which is known as cleanroom development.

Cleanroom Development

Cleanroom technology was introduced by Halls Mills in 1970’s to 1980’s. This technique was based upon the Capability Maturity Model. After the introduction of this technology it was used by IBM, ARPA stars and in military. It gains importance in small period of time just because this technique ensured error free software. So the chances of failure are nearly zero.

Conventional Development

In conventional or traditional development software developers make use of some specific models like waterfall, rapid application development and spiral model. In this technique the quality which is the main objective of testing is of two types. Even after performing all types of testing software developers cannot achieve error free software. There are still chances of occurrence of error. In this type of development the software passes through requirement, analysis, design, implementation and testing.

Cleanroom Development VS Conventional Development

Definition:

Cleanroom is a technique which is used for development and its main focus is on the verification of the product and error free software.

In conventional development the developer uses different models for development and even after performing many testing techniques there is chances of errors.

Testing:

In cleanroom development testing is done by applying the techniques of statistical quality assurance.

In traditional method the testing is performed by making test cases and use cases.

Size of code:

The size of code written in cleanroom technique is much reduced as compared to ordinary code. In cleanroom specification are written instead of code. Due to this reason the size of code is less.

In traditional way of development the size of code is large in comparison with cleanroom development.

 Reliability:

The software developed using cleanroom technique is more reliable because of mathematical verification.

The software developed using conventional technique is not much reliable because no such mathematical verification is involved.

Coding and Designing:

In cleanroom coding and designing are verified using formal mathematical proofs.

No such verification is performed in conventional technique.

Finding errors:

In cleanroom technique the software engineers make use of statistical based testing to determine the uncovered errors and severity of errors.

In conventional development the errors are found and removed by unit testing.

Performers:

The cleanroom development is performed by highly trained software engineers.

The conventional development is performed by programmers, project managers and designers.

Certification:

In cleanroom the design and code are first certified and then the next phase is started.

In conventional development technique no such certification is involved.

Conclusion:

Cleanroom is best development technique when a highly complicated software. Whereas in building smaller projects like hospital management system this conventional technique is preferred.