SYSTEM SOFTWARE

System software :
Device drivers
operating systems
servers
utilities
windowing systems
The purpose of systems software is to unburden the application programmer from the often complex details of the particular computer being used, including such accessories as communications devices, printers, device readers, displays and keyboards, and also to partition the computer's resources such as memory and processor time in a safe and stable manner. Examples are- Windows XP, Linux, and Mac OS X. integrated electronic environment that is available to and easily accessible by each employee and is structured to provide immediate, individualized on-line access to the full range of information, software, guidance, advice and assistance, data, images, tools, and assessment and monitoring systems to permit job performance with minimal support and intervention by others.
a computer-based system that improves worker productivity by providing on-the-job access to integrated information, advice, and learning experiences.

An electronic performance support system can also be described as any computer software program or component that improves employee performance by

Reducing the complexity or number of steps compulsory to perform a task,
providing the performance information an employee needs to perform a task, or
providing a decision support system that enables an employee to identify the action that is appropriate for a particular set of conditions.
Electronic concert Support Systems can help an society to reduce the cost of training staff while greater than ever productivity and routine It can empower an employee to achieve tasks with a minimum amount of peripheral intrusion or training. By using this type of system an employee, above all a new employee, will not only be able to inclusive their work more quickly and accurately, but as a secondary promote they will also learn more about their job and their employer's business.

EPSS must be famous from a long-established online help structure In her book, Glory Gery points out that on-line help habitually supports a single software application and is not necessarily focused on the entire range of job tasks but just that specific software. With online help, cross-referencing is often not available and the information provided is limited and rarely combined with procedures or complex tasks. Perhaps most critically, on-line help can not be customized to the user or the job task; in fact, the same software screen may require different inputs depending on the user and job task.

EPSS must also be differentiated from e-learning simulations that replay a series of steps on-demand within a software application. Simulations are more closely associated with on-demand training, not just-in-time support, because of the longer time considerations, complexity, and media restrictions for playing a simulation. Ted Gannan (2007) describes this differentiation and states that an EPSS can be considered a part of the e-learning category, as it is on-demand learning, and notes that the EPSS modality fits more within the informal learning definition.

A performance support system provides just-in-time, just enough training, information, tools, and help for users of a product or work environment, to enable optimum performance by those users when and where needed, thereby also enhancing the performance of the overall business.

In adding together to recommending consideration of an EPSS when knowledge is required to achieve individual performance in a business environment, Bezanson points out that an EPSS should be painstaking when skilled performers spend significant amount of time helping less skilled performers, when new workers must begin to perform immediately and training is impractical, unavailable or constrained, or employees need to be guided through a complex process/task that can’t be memorized. These situations often occur when new systems (e.g. Customer Relationship Management, Enterprise Resource Planning) are introduced, upgraded or consolidated, and in certain call centres when agents must perform using complex systems, processes or products