maintenance service - Computer Definition A service provided to keep a product in good operating condition. One of the strong selling points for the rise of software as a service (SaaS) was that all program maintenance is provided by the vendor of the application. See SaaS.
For the former trade union, see Amalgamated Society of Painters and Decorators. Antisocial personality disorder (ASPD), also known as dissocial personality disorder (DPD) and sociopathy, is a personality disorder, characterized by a pervasive pattern of disregard for, or violation of, the rights of others.
From wikipedia 'Psychopathy is a personality disorder characterized by an abnormal lack of empathy combined with strongly amoral conduct, masked by an ability to appear outwardly normal.'. The opposite would be someone that has complete empathy and upstanding moral conduct.