|
|
Components |
|
|
Components are "packaging" for
objects. Components represent the "contract" that must be
maintained. These packaged pieces of software seem to have their
greatest use in the middle tier implementing business logic. In our
view, there are two viable technologies for components, Com/Dcom and EJB
which we present links for below. We do not believe that CORBA at the
current time has a very good offering. Perhaps this will change with the
ongoing work for CORBA 3.0. UML | | | COM/Dcom | | EJB |
UML
This standard is one that is crucial to the creation of components. We believe the real use of this standard will be not in the creation of components, but in their maintenance. One of the major benefits of using this standard is that a common vocabulary is provided for talking about the components between developers, marketing, and sales.
Web Sites |
|
|---|---|
| Object
News Interested in the current state of affairs in objects, components, and event UML? Check out this directory of links. |
|
| Cetus
Links to UML Articles, Links, Mailing lists, they are all here. Make sure to stop here on your tour of web sites that pertain to UML. |
|
| XML
Metatdata Interchange Format (XIF) If you want to exchange UML between different tool vendors, this standard is a start. |
|
| Rational
Software UML Resource Center Where did UML really start? From Rational. Check out this site of their documentation and keep in that their products are greatly benefited from UML. |
|
| The
Precise UML Group If you think that UML is not precise enough in it's semantics, check this group out as they are doing something about it. |
|
Com/DCom
This component technology is being advanced by Microsoft and is the most prolific and stable way of creating components. It has the drawback of being limited to Microsoft operating systems (NT, 98, 95). Microsoft seems to basing it's entire middle tier strategy (currently known as COM+, which includes MTS, MSQ, and DTC) on Com/Dcom.
Web Sites |
|
|---|---|
| Microsoft
COM Technologies Case studies, white papers, discussions of technologies leave you with the view that Microsoft has not articulated a good middle tier strategy, but they have an excellent component offering. |
COM+ Here is Microsoft's articulation of what COM+ is, including white papers, resources, and press releases. |
| Microsoft
Transaction Server Code named "Viper", here is Microsoft's TP monitor. According to TPC-C numbers, it's already equivalent to Tuxedo in performance. |
ObjectWatch
Home Page Wondering how this stuff all ties together? Check out the newsletters and courses here. Good explanations. |
| Develop
Mentor Do you want to immerse yourself in an excellent programming course for COM and DCOM? Check out Guerilla COM. |
|
EJB
Sun is extending the Java language to work as components in the middle tier by the EJB technology. Currently, the greatest limitation seems to be that if you adopt this technology, you must use Java.
Web Sites |
|
|---|---|
| Enterprise
JavaBeans (TM) Technology Here you will find the EJB spec, white papers, case studies from SUN. |
|
| Java
- Oracle Corporation Oracle is another major player in EJB with thier implementation of it in Oracle 8i, but this is the best page I could find on thier site. |
|
| EJB
enters the IBM Websphere Take a look at how IBM is integrating EJB into thier web server environment. |
BEA
Systems: Products: WebLogic An application server that implements EJB. If you're looking for EJB implementations, make sure to this in consideration. |