Loading...
Posts on the
Design Decomposition Blog
Iridium Satellite Collision in Space
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
(The Acronym) SOA is (Perhaps) Dead (at Some Companies); Long Live Services
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
Atomicity
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
Well-Formed Business Process Diagrams
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 [...]
November 18, 2008
Recent Business Process Modeling Books
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 [...]
October 9, 2008
The Design Decomposition Blog
is written by Doug Barry.
Loading...

The notation for object model encapsulation is shown below. Methods are shown at the bottom of the class notation.

Encapsulation

Code and data were not always packaged together. At one time, for example, it was necessary to define an age calculation in each application or have a library that contained the age calculation routine. Having an age calculation or any routine, replicated in many applications may make it difficult to ensure that a change in the routine was made everywhere that it is used. Using a library improves this situation if use of the library is enforced. Nevertheless, with a library, you can never be sure which routine is supposed to be used with which data. It is entirely possible to execute the right code on the wrong data or the wrong code on the right data.

Object systems recognize which methods belong to which data. You cannot execute the right method on the wrong data as you could with library systems. The correct execution of methods is called dispatching, and it is handled by the object system. See dispatching (new window).

Related content for: More on encapsulation

More on the general topic: Encapsulation

Read more free articles on this site

There are nearly 400 pages of articles on this site with over 40 pages on database concepts and standards.

Search this site for more articles

Custom Search

Browse this site for more articles

Click on the topics below to browse the articles on this site. You can see more detail by clicking on the arrows. This highlights the location of the current article: More on encapsulation.

Loading...

Related recent articles from Google News

Managing Models in ASP.NET MVC
Visual Studio Magazine
However, a view is the application's user interface and is going to need to support the user's workflow -- not the application's object model or the ...

31 Aug 2010 at 1:10pm
SQL Server 2008 R2 for the Developer
Visual Studio Magazine
Report Manager has an improved interface that's easier to use, while Report Viewer uses AJAX and a JavaScript object model in Web reports to make it easier ...
and more »
31 Aug 2010 at 8:45am
TIBCO ActiveMatrix BPM In Depth
Enterprise Irregulars (blog)
Even better, you can import it from UML, XSD, WSDL or directly from a database, and can export it to XSD or WSDL. A business object model is then attached ...

1 Sep 2010 at 11:37am
Using Windows PowerShell to Manage SharePoint 2010
Windows IT Pro
NET Framework and work directly with the SharePoint Object Model or Web Services. But now it's official, and administrators get to use the power of ...
and more »
27 Aug 2010 at 11:30am
UN Report: US abuse of Native Americans and migrants
The NarcoSphere
Since 2020, autodesk maya 2008 the system object model seemed approved.. Avec les prix photoshop cs2 risques, il pistes prix photoshop ni crédit garanti à ...
and more »
6 Sep 2010 at 12:17am
More related news on: "object model" database

Related books at Amazon.com

DOM Scripting: Web Design with JavaScript and the Document Object Model
DOM Scripting: Web Design with JavaScript and the Document Object Model
by Jeremy Keith
Average Customer Review: 4.5 stars based on 74 reviews.
Customer Review: If have read a few books on javascript since i wanted to extend my toolbox of html, css and php. But this book is by far the best. Everything is so well explained that it seems too simple to be true. I did find the examples in other books quite confusing and sometimes hard to follow. Now I look at those examples and wonder why they ...
Analysis Patterns: Reusable Object Models
Analysis Patterns: Reusable Object Models
by Martin Fowler
Average Customer Review: 4.5 stars based on 15 reviews.
Customer Review: I bet you are an object oriented software developer striving to build better applications. If you have not read GoF Design Patterns and followed that with Vlissides's Pattern Hatching, read those first. Follow those with this, Martin Fowler's Analysis Patterns. As two readings of Design Patterns took my OO knowledge from infancy to ...
The Object Primer: Agile Model-Driven Development with UML 2.0
The Object Primer: Agile Model-Driven Development with UML 2.0
by Scott W. Ambler
Average Customer Review: 4 stars based on 12 reviews.
Customer Review: For those who want a quick, fun introduction and intermediate mastery of UML 2.0 without getting sidetracked in all the esoteric notation that is rarely used, this is your book. I have used it since its release (and the edition before that) for teaching UML and good Object Oriented Design concepts. Many will throw stones (UML Purist...
More related books: Search Amazon.com for object model