Business System Definition Matrices

During a business system definition, you use the matrices to create an Elementary Process/Entity Type Matrix. You can identify potential business systems by clustering this matrix that is based on the expected effects of elementary processes on entity types.
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Elementary Process/Entity Type Matrix

The Elementary Process/Entity Type Matrix lets you record the expected effects of elementary processes on entity types.
All activities have one of following effects on data:
  • C = Create
  • R = Read
  • U = Update
  • D = Delete
The Create and Delete effects also have the effect of Update and Read. The Update effect also has the effect of Read. These four effects also are called CRUD indicators.
When you run a consistency check, the software ensures that the expected effects are consistent with the expected effects of functions that are specified in the Business Function/Entity Type Matrix.
The software populates the rows and columns if elementary processes exist in the activity model and entity types exist in the data model.
The software populates the cells if expected effects of elementary processes are detailed in the model.
Permitted cell values are C, R, U, D, or blank. As part of a business system definition, you cluster this matrix to subdivide the business area into potential business systems.
During Analysis, the Elementary Process/Entity Type Matrix confirms that each elementary process has at least one C, R, U, or D expected effect.

Clustered Elementary Process/Entity Type Matrix

The Clustered Elementary Process/Entity Type Matrix shows naturally occurring groupings of elementary processes and entity types. This matrix is an intermediate step toward creating a Business System/Elementary Process Matrix.
To create the matrix, invoke the Cluster command in the Elementary Process/Entity Type Matrix.
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performs cluster and affinity analysis on the Create, Read, Update, and Delete (CRUD) values.
Permitted cell values are C, R, U, D, or blank.

Elementary Process/Elementary Process Matrix

The Elementary Process/Elementary Process Matrix is created when you cluster the Elementary Process/Entity Type Matrix. You cannot add, delete, detail, cluster, or sort elements in the matrix.
Cell values of 1 through 9 are derived automatically from Create, Read, Update, and Delete (CRUD) indicators in the Clustered Elementary Process/Entity Type Matrix. The highest affinity is represented by 9 and the lowest is represented by 1.
To identify major groups of elementary processes, you can hide cell values below a certain cutoff point, such as 7. Elementary processes with a value of 6 or less can be added to one of the business systems.
Assign a meaningful name to each business system. Use the Include, Remove, and Define BS commands to define business systems and assign elementary processes to them.
The Elementary Process/Elementary Process Matrix and the Business System/Elementary Process Matrix are reciprocal. Any change made to one affects the other.
The cell values in this matrix are mirrored on either side of the diagonal (which consists of all 9's). Focus only on one side when grouping elementary processes.

Business System/Elementary Process Matrix

The Business System/Elementary Process Matrix associates each elementary process with the business system that is responsible for it.
The software populates the elementary process axis if elementary processes exist in the activity model. The software also populates the business system axis and cells if business systems are grouped and named in the Elementary Process/Elementary Process Matrix.
Possible cell values are X and blank.
The Business System/Elementary Process Matrix and the Elementary Process/Elementary Process Matrix are reciprocal. Any change made to one affects the other. Similarly, the Business System/Elementary Process Matrix reflects changes to the business scope that are made using the Business System Definition Tool.

Business Area/Business System Matrix

The Business Area/Business System Matrix lets you name business areas and reference them to the business systems included in an area. You can forecast the assignments during Planning and change the names during Design.
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populates the business area axis if the business areas exist in another matrix.
Possible cell values are X, 1 through 9, and blank.