Unusual responses to sensory information, such as loud noises and lights, are also common. Repetitive play skills and limited social skills are generally evident. Some children do not speak at all, others speak in limited phrases or conversations, and some have relatively normal language development. Children with PDD vary widely in abilities, intelligence, and behaviors. Other types of PDD include Asperger's Syndrome, Childhood Disintegrative Disorder, and Rett's Syndrome. Pervasive Data Integrator and Pervasive Data Profiler are integration products, and the Pervasive PSQL relational database management system is its primary data storage product.
PERVASIVE DEFINE SOFTWARE
Autism (a developmental brain disorder characterized by impaired social interaction and communication skills, and a limited range of activities and interests) is the most characteristic and best studied PDD. Pervasive Software was a company that developed software including database management systems and extract, transform and load tools. Symptoms may include problems with using and understanding language difficulty relating to people, objects, and events unusual play with toys and other objects difficulty with changes in routine or familiar surroundings, and repetitive body movements or behavior patterns. Parents may note symptoms as early as infancy, although the typical age of onset is before 3 years of age.
The diagnostic category of pervasive developmental disorders (PDD) refers to a group of disorders characterized by delays in the development of socialization and communication skills.