St James workflow terminology
- FS
- Functional Specification
- URS
- User Requirement Specification
- DDS
- Detailed Design Specification
- FAT
- Factory Acceptance Testing
- SAT
- Site Acceptance Testing
j5 terminology
- Editable/Locked
- An editable field may be changed by the user, assuming she or he has
permission to edit it. A locked field cannot be edited by any user,
clicking on it will have no effect.
- Required/Optional
- A required field must contain a value before the log can be saved. An
optional field may be blank and the log can be saved.
- Default value
- The default value for a field is the value of the field when a new
log is created, before it is saved for the first time.
- Calculated
- A calculated value is derived or determined by the values of other
fields. This value cannot be edited directly by a user, instead the source
fields must be edited and a new derived value will be calculated.
Industry-wide terminology
- mass balance
- A mass balance (also called a material balance) is an application of
conservation of mass to the analysis of physical systems. By accounting for
material entering and leaving a system, mass flows can be identified which might
have been unknown, or difficult to measure without this technique.
See http://en.wikipedia.org/wiki/Mass_balance
- OPC
- OLE (Object-Linking and Embedding) for Process Control is an open
standards specification for the communication of real-time plant data between
control devices from different manufacturers.
See http://en.wikipedia.org/wiki/OLE_for_process_control
- pig
- Pipeline pigs are devices that are inserted into and travel throughout the
length of a pipeline driven by a product flow. They were originally developed to
remove deposits which could obstruct or retard flow through a pipeline. Today
pigs are used during all phases in the life of a pipeline for many different
reasons.
See http://www.ppsa-online.com
- PLC
- A programmable logic controller or programmable controller is
a digital computer used for automation of industrial processes. Programs to
control machine operation are typically stored in battery-backed or non-volatile
memory. Output results must be produced in response to input conditions within a
bounded time, otherwise unintended operation will result.
See http://en.wikipedia.org/wiki/Programmable_logic_controller
- Process control
- Process control is a statistics and engineering discipline that deals
with architectures, mechanisms, and algorithms for controlling the output of a
specific process.
See http://en.wikipedia.org/wiki/Process_control
- SCADA
- A Supervisory Control And Data Acquisition system collects data and
performs non-critical control. Some systems are called SCADA despite only
performing data acquisition and not control.
See http://en.wikipedia.org/wiki/SCADA
- tag
- A tag is a data point in a data source, usually arranged in a
hierachy. OPC and Tango are data source standards.
- Tango
- Tango is an object oriented distributed control system using CORBA
(Common Object Request Broker Architecture).
See http://www.tango-controls.org
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