Institute for System Level Integration was created in 1998.
Integration
The standard is usually referred to as CMMI Level 5. SEI, the Software Engineering Institute, is the body that created the standard.
-Level I: The receptor level corresponding to the sensory receptors -Level II: The circuit level corresponding to the ascending pathways -Level III: The perceptual level corresponding to the awareness of the incoming stimuli
The Capability Maturity Model Integration program has 5 maturity levels. These include Level 1 (Initial), Level 2 (Managed), Level 3 (Defined), Level 4 (Quantitatively Managed), and Level 5 (Optimizing).
Supply chain integration is how customers and suppliers develop closer relationship with each other. In order to make integration happen, you need to form strategic partnership. Integration usually involves sharing of market information, demand data, capacity data. High level of integration is to connect different software system together so that data can be transmitted between customer and supplier without manual operations.
Integration testing is a typically incremental process which involves testing whether individual modules within a system interact correctly.Top-down Integration TestingTop-down integration testing involves starting at the top of a system hierarchy at the user interface and using stubs to test from the top down until the entire system has been implemented. There is no need for test drivers as the user interface provides the means to enter test data. Using Top-down integration testing means that there is a visible system with a certain level of functionality early on.Bottom-up Integration TestingBottom-up integration testing is the opposite of Top-down integration testing. Sub-systems are initially formed at the bottom of the system hierarchy. These are then tested and added to the modules above them to form larger sub-systems which are then tested. Bottom-up integration testing requires the heavy use of drivers instead of stubs.
As an example: If you were implementing a new process or procedure in a company; Top Down would start with the Board of Directors/owners and make its way DOWN through the management to the shop floor staff. Bottom Up would start at the shop floor staff and move through supervisery, to manager s to senior managers etc
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The Department of Transportation was created to provide a cabinet level department to oversee the nations transportation system. They develop policies and procedures to make the system my economical and efficient.