Laryngitis is an inflammation of your larynx (or voice box) that results in symptoms ranging from a tickling in your throat to a complete loss of your voice. Acute laryngitis is temporary and lasts from a few days to a few weeks. It can be caused by infections or vocal strain. Chronic laryngitis lasts for more than three weeks and is usually caused by inhaled smoke, chemicals, a side effect of acid reflux or sinus infection.
This has included defining the roles, responsibilities and authority of those responsible for product and customer service quality and establishing guidelines. Based on this quality management system, Sony is implementing measures on an ongoing basis to improve the quality of its products and services. Examples of such measures are given below.
An operations view of quality is a common view of the concept of quality.  However, quality is a function of how the customer views the product/service that he or she receives. The customer view always compares what they expect with what they actually receive regardless of how operations conceives quality.