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The key elements of the approach are (1) Resources - the view taken by the authors is businesses are a collection of resources. This differs from most approaches that view businesses as a inter-related processes and functions. Because the unit of composition for businesses is a resource (or asset), each are viewed within the context of a life cycle. This is a natural way of looking at assets, and this view fosters systematic management of business resources. Resources can be human, software, time, money, etc. (2) Value chains - this is the element that does address business processes and functions because it treats them as value chains. This is not an uncommon way of viewing processes and functions, but combining this view with the resource view is. (3) Precedence - this element adds sequence to the functions in *support* of resources.
From the foregoing there is a clear connection between resource life cycle analysis and project management, especially with respect to resource and precedence elements. From a strategic planning point of view, there is also a direct connection between value chains and processes, both of which are determining factors for systems to be implemented in support of business processes. These connections highlight the value of resource life cycle analysis as a methodology, and underscore its value as a tool that can be "bolted on" to your existing project management and/or planning methodologies.
I have been deeply influenced by this approach and have incorporated it into the way I approach requirements analysis and project planning. If you are a consultant, IT professional or operational manager of a business unit this book will provide you with some deep skills and a new way of approaching analysis.
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Recently we have a case of cerebrospinal fluid-cutaneous fistula following spinal anesthesia used for indirect inguinal hernia repair. But we couldn't see any comment in the textbook about the management of cerebrospinal fluid fistula from inthratecal space to skin due to postdural puncture for purpose of spinal (intrathecal) anesthesia.
Cutaneous cerebrospinal fluid (CSF) fistula are known to occur rarely under spinal puncture during spinal anesthesia, and CSF leaks via that fistula. This complication is often self-limiting but sometimes needed some treatment procedures such as intravenous fluid restruction, patient prone position, strecth dressing of wound, epidural injection of autologous blood patche or fibrin glue, or uncommonly use of CSF drainage system.
We think that if this complication and its' management is included in new edition of the textbook it will be better.
With our regards,
Hakan Erbay, M.D. Assisstant Professor of Anesthesiology Pamukkale University, Medical Faculty Department of Anesthesiology and Intensive Care, Denizli, Turkey
Erkan Tomatir, M.D. Associated Professor of Anesthesiology Pamukkale University, Medical Faculty Department of Anesthesiology and Intensive Care, Denizli, Turkey
With our regards,
Hakan Erbay, M.D. Assisstant Professor of Anesthesiology Pamukkale University, Medical Faculty Department of Anesthesiology and Intensive Care, Denizli, Turkey
Erkan Tomatir, M.D. Associated Professor of Anesthesiology Pamukkale University, Medical Faculty Department of Anesthesiology and Intensive Care, Denizli, Turkey
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By page 16 I felt completely overwhelmed, with no sense of what problem was being solved with, for example, the Table of Atomic Rule Types (even though it's clearly pretty cool), and no sense of how rules would be used after they were so carefully captured, identified, classified, and normalized. My mental picture was the specter of pouring 1000s of labor hours into building a taxonomically-correct butterfly collection, and proclaiming, "Here are the rules of your business. I know all their names and I've organized them properly." With a data admin background, I have less of a problem doing the very same thing with data...but I know conceptually how my work can be implemented and utility achieved. Not so with this material.
My biggest disappointment: the book doesn't provide a conceptual architectural implementation. Without some foundation portrayed in architectural components (e.g., a rulebase and its possible structure, a rulebase management system, rule interpreter or rule object broker, etc.) there's little motivation to move forward.
Again, like Codd's RM Version 2, Ross's work seems to be very 'important' and very intellectually appealing. But, it too leaves me with the feeling of, "So what"? On the other hand, Ross's own presentations and those of other business rule proponents leave me with no doubt about the soundness and potential of the overall approach--it could be a huge IT breakthrough. Unfortunately, this book did nothing at all to help me understand how that breakthrough might be possible, or how the effort to capture rules could be practically applied to solve business problems.
Unfortunately, most commercial off the shelf software does not allow for such possibilities, which necessitates the need for procedural enforcement of business rules through the use of properly designed triggers and stored procedures. The tome from Donald Ross gives a formal methodology for the enforcement of such business rules in the design of a software application.
It lists eight categories of business rules which can be created in an Object/Relational environment. These can be used to provide an integrated approach to transactions for the application to be developed. He provides a formal graphic set of design tools which can be used to address these procedurally on data.
The author provides hundreds of examples of business rules in the designated categories. It should prove a valuable reference for integrated application design for all concerned architects, developers, and subject matter experts.
Ronald Ross presents what could best be described as a unified field theory to explain how to define business rules. His generic way to define precise and unambiguous rules (and in a graphical manner!) lays the cornerstone for truly significant CASE tool breakthroughs in capability.
Like Das Kapital by Karl Marx, this is a long book, it's full of powerful insights that can change the face of analysis as we know it; and it can best be described as tediously brilliant. If you are looking for an analytical razor to hone your specification skills, this is well worth slogging through!
His courses are also well worth attending.
All that is missing is how to build and implement an architecture that supports this vision (though the basic rules-based features that it must support are discussed).
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