You might have seen the recent news reports about the collision between U.S. and Russian communication satellites. The U.S. satellite was one of the Iridium satellites. What wasn’t reported and you probably don’t know is that an object database management system (ODBMS) is an important part of the Iridium system. Even though ODBMSs are a [...]
February 13, 2009
I am now also posting on the Cutter Blog. My initial posting is (The Acronym) SOA is (Perhaps) Dead (at Some Companies); Long Live Services. It is a response to Anne Thomas Manes’ SOA is Dead; Long Live Services on her blog at the Burton Group.
January 9, 2009
The typical definition of an atomic task or process is one that cannot be decomposed further. This is vague and subject to interpretation. The Decomposition Matrix on this site uses a specific definition: A task (for business process diagrams) or a process (for data flow diagrams) is atomic if every input relates to every output [...]
December 3, 2008
My last posting referenced the criteria for a well-formed business process diagram mentioned in Business Process Driven SOA using BPMN and BPEL by Matjaz B. Juric and Kapil Pant. I am going to expand on their criteria to create a more comprehensive definition of a well-formed business process diagram.
To start, here are three criteria from [...]
November 18, 2008
I recently received two new books on business process modeling. Both books looked interesting because they had great titles. As it turns out, one book is great and the other not so good.
The not so good book is Business Process Driven SOA using BPMN and BPEL by Matjaz B. Juric and Kapil Pant. There are [...]
October 9, 2008
The Design Decomposition Blog is written by Doug Barry.
The Teacher View (new
window) and the Employee
View (new window) can be used as hints
for creating intermediate classes above the leaf
classes (new window). Inspection of these
views will provide ways for factoring attributes up higher in the class
hierarchy. The term factoring attributes up refers to moving the
definition of the attributes up as high as possible in the class hierarchy.
Looking at the multi-type views will likely show you which attributes can be
factored up and what name you should assign to the new intermediate classes
above the leaf nodes. The name is usually the same name as the multi-type view
that you are using.
To create the intermediate classes above the leaf classes, simply add the
Teacher and Support Classes above the tentative
classes (new window) and factor up the
common attribute based on the multi-type view. The result is shown below.
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