What is Computer Systems Validation?
Computer Systems Validation (CSV) is a process used to ensure (and document) that a computer-based systems will produce information or data that meet a set of defined requirements. If a system meets these requirements, it can be assumed that it is consistently performing in the way it was intended.
The process is used within highly regulated environments that directly impact public health and safety such as pharmaceutical and medical device manufacturing. It’s crucial that any process within these manufacturing industries reliably behaves in a consistent way.
Pharmaceutical manufacturing and medical device manufacturing industries are increasingly relying on computer systems to operate a range of manufacturing processes, so it’s more important than ever that these systems can be relied upon to follow a predetermined specification.
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Why Do We Need Computer Systems Validation?
Regulated industries, such as pharmaceutical manufacturing, have to adopt many compliance procedures to make sure their final product is safe for distribution or sale. CSV is one of those compliance requirements and is part of the Quality Management System within pharmaceutical manufacturing.
So what exactly does CSV deliver to these industries?
- Accuracy – when test outcomes are routinely checked against predetermined expected results, the accuracy of computer systems within the manufacturing process can be relied upon
- Security – CSV processes make clear when entries to the system have been altered
- Reliability – the process ensures that system outputs can be relied upon throughout the lifecycle
- Consistency – it also ensures that the system output is consistent across its lifecycle
- Optimisation – following the process also means that computer systems can be more easily optimized. Optimisation is a key feature of an effective and efficient manufacturing site.
CSV is applied to all computer-based systems used at any point in the manufacturing process. Examples might include information databases, automated equipment and control systems.
CSV principles are followed when dealing with any part of the computer system including software, hardware, operation etc.
Computer Systems Validation Documentation
The documentation associated with CSV is extremely detailed. Someone reading through it should be able to repeat the steps involved simply by following the document. The language used must be clear and concise.
Before any computer system is used, documents will outline specifics such as:
- Defining the purpose of the computer system in question
- The features it needs
- The hardware it needs
- When it will be used
- The requirements that it is expected to meet
The specifications defined here will then be used throughout the CSV process – this continues throughout the life of the computer system.
Standard Operating Procedures (SOPs) are a key part of CSV documentation. They outline how the computer system should be used. Any staff that uses a particular system will be thoroughly trained on the relevant SOPs to ensure they are using the system correctly, in the way it was intended.
In addition to this, the system will continue to be tested throughout its lifecycle. Rigorous routine testing will be used to show that the system continues to meet the predefined requirements that were laid out in the design phase.
All CSV documentation can be called for review and audit at any point of the system lifecycle. It would be expected that the documentation meet appropriate standards at all points.
Even after a company has stopped using a particular computer system, the documentation showing that it was correctly validated while in use, is kept.
The Process of Computer Systems Validation
There are many stages to the Computer Systems Validation process. In pharmaceutical manufacturing, systems will typically be developed following the Good Automated Manufacturing Practice V-Model (GAMP®5).
As an industry standard, following GAMP®5 meets requirements of the industry regulators, which is essential in the manufacture of medicines. The Food and Drug Administration (FDA) regulation is covered under FDA 21 CFR 11. In Europe, the regulation is known as Annex 11.
Using the V-Model also ensures that every step of the system has a verification phase. This means that the quality of the system is checked at every stage, i.e. throughout the entire process rather than just one single quality check of the final system output.
Without getting too technical, stages of the CSV process include:
- Mapping out a User Requirement – what does the system need to be able to do
- Writing a Validation Master Plan – a detailed plan of what steps are to be taken to ensure the system has been validated. This will include writing of validation SOPs so as to ensure that the specifications match the user requirements for the system
- Writing a Test Plan – including what tests will be carried out, who has responsibility for them and what the expected results/outcome should be
- Test cases – including installation, operational and performance qualification (IQ/OQ/PQ) which verify that the system meets various specifications and operates as intended so it is fit-for-purpose
The overall aim is to ensure that a computer system has been designed, implemented and functions in line with outcomes that are defined at the beginning of the system lifecycle. These outcomes match directly against the identified user requirements.
If this is the case, the system should continue to produce results in a consistent and reliable way.
The Growth of Computer Systems Validation Opportunities
As manufacturing processes become increasingly automated, the need for CSV professionals is growing. This trend is only expected to continue.
There is also an acute shortage of trained CSV professionals in certain geographic areas, including Ireland. For this reason salaries for these roles are extremely attractive.
If you have the skills outlined above, as well as the experience of pharmaceutical or medical device manufacturing, you might be closer than you think to being a great candidate for CSV roles within pharmaceutical companies.
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