Yasha Software Consulting was
in October 2003. Back then, the entrenched process control giants struggled
outside their domain expertise of PLC's and DCS's; particularly when it came to the creation of
software products and/or the execution of software based projects. This was particularly evident the
higher one got up the ISA-95 control hierarchy. This apparent lack of skills made it feasible for a small
consulting company to arise.
Yasha employees have through the course of their careers, executed projects and
developed solutions across many different industries, including:
- Food and Beverage
- Metals and Mining
- Oil and Gas
- Pulp and Paper
This cross-industry exposure, as well as our vendor neutrality, has tangible benefits for the
end client, as it allows for a best of breed approach, that not only spans a specific industry
but also crosses verticals.
ISA-95 Control Hierarchy
The control hierarchy describes the functional levels at which decisions are made:
- Level 0: Defines the actual physical processes
- Level 1: Defines the activities involved in sensing and manipulating the physical processes.
- Level 2: Defines the activities of monitoring and controlling the physical processes.
- Level 3: Manufacturing Operations Management Layer (MES, LIMS, ...). Defines the activities of the work flow to produce the desired end-products.
- Level 4: Business Planning and Logistics Layer (ERP, ...). Defines the business-related activities needed to manage a manufacturing organisation.
Levels 1-2 can be classified as the Automation Layer (PLC, DCS, ...). The usefulness
of this model lies in its capability to provide a consistent set of terminology and models,
upon which more detailed interfaces and standards can be defined.