SCI-P-267
Although the full document is not available on this site,
an online preview of the CIMsteel
Application Activity Model is
available in pdf format (you will need Adobe
Acrobat Reader 4)
SUMMARY
This publication documents the background to CIS/2 and shows how the Logical
Product Model (LPM/5) was derived. It is the third of a series of six SCI
publications that make up the CIS/2 documentation.
Collectively, the CIS/2 documentation specifies what information may be
transferred between software applications, and how that information must be
structured in a repository or data exchange file.
The CIS/2 Information Requirements are specified as a set of 'Units of
Functionality', 'Application Objects', and 'Application Assertions', and are
graphically represented in the 'Application Reference Model'. The information
requirements correspond to activities that have been identified as being within
the scope of CIS/2 as defined with the 'Application Activity Model'.
The main body of this document presents the 'Application Activity Model',
which has two main components:
- IDEF0 Diagrams showing the activities, and the data flows between
these activities, during the production of a 'steel framed building
complex', and
- A Glossary of the Activities and the ICOM arrows.
The Application Activity Model is used to identify the information flows
between the different types of applications commonly involved in the development
cycle of a steel structure. In the Application Activity Model, the flows of
information are represented by the arrows between the boxes on the IDEF0
diagrams. In the CIS, the flows of information between each stage of the process
are called Units of Functionality (UoF).
The Units of Functionality present the information requirements as derived
from the ICOM arrows of the AAM, identifying Application Objects within the
Application Reference Model.
The Application Objects present the information requirements as derived from
the UoFs, identifying the data associated with each of the Application Objects.
The Application Assertions present the information requirements as derived
from the UoFs, identifying the relationships and constraints between Application
Objects. Each Application Assertion specifies the relationship between two
Application Objects, the cardinality of the relationship, and the rules required
for the integrity and validity of the Application Objects.
The Application Reference Model presents a graphical representation of the
Application Objects & Application Assertions.
