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.
ODBMSs allow you to store objects directly without any mapping to different
data structures. This is shown in the figure below. Mapping to different
data structures is called "impedance mismatch." Impedance mismatch
slows down performance on complex data because of the need to map from one data
structure (tables) to another (objects). ODBMSs have no impedance mismatch. For more information on impedance
mismatch and mapping, see the related content below. More
on complex data (new window).
More detail for the current topic: No impedance mismatch
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Data Access Patterns: Database Interactions in Object-Oriented Applications (paperback) by Clifton Nock Average Customer Review: based on 7 reviews. Customer Review: I have to disagree with the previous review. I will try to explain why I think 'b88zhou' review is inadequate after presenting my overview of this book. After reading numerous pattern books, it is nice to see a pattern book with very good organization. Each pattern is presented with the following subsections. * Description * Context ...
Object-Oriented Application Development Using the Cache Postrelational Database by Wolfgang Kirsten, Michael Ihringer, Peter Schulte Average Customer Review: based on 7 reviews. Customer Review: Have gotten extensive use out of this book from my time as a cache developer. Good guide for a programmer who's new to cache, and then later on as a reference guide for an intermediate to experienced developer. Everyone in the dev team got some use out of this as a reference - good to have in the team.
Learning PHP Data Objects: A Beginner's Guide to PHP Data Objects, Database Connection Abstraction Library for PHP 5 by Dennis Popel Average Customer Review: based on 5 reviews. Customer Review: I like the book's erudite methodology. The methodology of this book is based on the two tenets of sound education: Informing Demonstrating In this books after the information I found lots of exercises, step by step, with plenty of pictures and screen shots that lead me through and demonstrated a process of task. These exercises are f...
The Object Data Standard: ODMG 3.0 (The Morgan Kaufmann Series in Data Management Systems) by R. G. Cattell, Douglas K. Barry, Mark Berler, Jeff Eastman, David Jordan, Craig Russell, Olaf Schadow, Torsten Stanienda, Fernando Velez Average Customer Review: based on 2 reviews. Customer Review: A well-written, concise reference covering a diverse range of topics that will be of interest to all who know the frustration of cramming complex OO systems into relational tables. From a complete design pattern for Object and Object Relational database systems, to design patterns for declarative language symantics; from C++ and Java...
Building Scalable Database Applications: Object-Oriented Design, Architectures and Implementations by Peter Heinckiens Average Customer Review: based on 6 reviews. Customer Review: I think some of the other reviewers might forget this book is at the time of this review writing is 5 years old. At the time of .NET's official non beta release it was just over 3 years old. Truly, this book is as relevant today as it was when it was written. Perhaps some of the concepts of persistence are missed by the first reviewe...
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based on 7 reviews.
based on 7 reviews.
based on 6 reviews.
