Computer System Validation (CSV) / Computer Software Assurance (CSA)

Computer system validation assures that systems are fit for intended use and that the records they hold are reliable. For years CSV became a byword for documentation volume — exhaustive scripted tests disconnected from real risk. PharmExpert delivers risk-based CSV aligned to GAMP 5 (second edition) and the FDA's Computer Software Assurance (CSA) thinking, scaling effort to risk and complexity rather than producing one-size-fits-all packages.

CSA reframes the question from 'how much can we document?' to 'what could go wrong, and how do we gain confidence it won't?'. We begin with critical thinking about intended use and impact on product quality, patient safety and data integrity, then triage functionality so high-risk features get rigorous scripted testing while low-risk, vendor-standard functions are handled with lighter, justified approaches.

A central enabler is leveraging supplier assurance — but only where the supplier is properly qualified. We assess and qualify key vendors so their development and testing can be relied upon, focusing your validation on configuration and intended use rather than re-testing what the vendor already proved. This is what makes a leaner model defensible rather than risky.

We cover the full lifecycle — requirements, risk assessment, specification, IQ/OQ/PQ and periodic review — for LIMS, QMS, MES, ERP, CDS and other GxP systems, including cloud and SaaS. Throughout, data-integrity controls (audit trails, access, ALCOA+) receive more attention, not less, because a leaner validation makes their design all the more important.