Key Manufacturing Systems: CIM, SCADA, Traceability, Simulation
Computer Integrated Manufacturing
Concept of CIM
Computer Integrated Manufacturing (CIM) attempts to integrate all production processes (design, materials management, production planning, warehousing, manufacturing, etc.) through the proper use of computers in all areas of the company and information management.
Definition of CIM
According to the Computer and Automation System Association (CASA) and the Society of Manufacturing Engineers (SME):
CIM is the integration of the entire manufacturing enterpriseRead More
Database Joins, Network Types, and Distributed Design
Database Joins
A join is derived from the Cartesian product. There are various forms of joins:
0-JOIN
It is an equi-join of two relations R and S over an attribute (or attributes).
NATURAL JOIN
In an outer join, tuples exist in the result relation regardless.
OUTER JOIN
Defined over the set of attributes A, by relation S, defined over the set.
SEMIJOIN
Decreases the number of tuples that need to be handled to form the join.
Advantage of SEMIJOIN
RELATIONAL CALCULUS
Specifies the properties that the result should
Read MoreDistributed Database Design & Cloud Computing Fundamentals
Distributed Database Design
Top-Down Distribution Design
This design method starts from a general overview and moves to specifics.
Bottom-Up Distribution Design
This design is presented when the databases already exist.
First Part of a Framework
Requirement analysis and view design.
Degree of Fragmentation
This goes from one extreme that is not the degree of fragmentation.
Approaches for Developing any DDBS
Two approaches for developing any DDBS appear: Top-Down and Bottom-Up.
Dividing Horizontally or Vertically
Relation
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