Could anyone please explain to me quality assurance and total quality management strategies, im having bit of a difficulty understanding exactly what each one is - even after reading my book.
Thanks 
TQM in layman's terms, takes a broader and more 'total' view of quality in comparison to quality assurance. Whilst quality assurance is involved within the TQM approach, TQM is a management philosophy that promotes continuous improvement in the quality of all the processes, goods and services of an organisation. I am sure you are aware of the three central principles: 1) Continuous Improvement, 2) Customer Focus and 3) Employee Participation and Teamwork.
Quality Assurance developed in the mid 1980s, and is thus a more recent development then say, quality control. Standards are known by ISO 90001:2008.
Quality Assurance is essentially more specific than TQM. E.g. the standards include: 1) Quality Management, 2) Management Responsibility, 3) Resource Management, 4) Product Realisation and 5) Measurement, Analysis and Improvement.
Hopefully that clarifies things, sorry if it does not. All the best.