Q : Define SOA
A : SOA is also known as the acronym for Service Oriented Architecture. It is also known as a framework for building applications that can be used for commercial purposes. It is important to note in this context that during the development process of these applications, SOA uses loosely coupled strategies. These can be combined to achieve a considerable amount of functionality.
Q : Shed light on the various principles on which SOA is based
A : SOA is based on the following principles. They are as follows:
1. Flexible
2. Re-usability
3. Loose Coupling
4. Interoperability
Q : Do you think that Oracle Fusion is same as that of Oracle SOA?
A : The answer is no due to the fact that SOA is one of the integral parts of Oracle Fusion. Moreover, SOA acts like the user interface in the Oracle Fusion platform.
Q : Define SCA with respect to the Oracle SOA platform
A : SCA is also known as the Service Component Architecture. This type of architecture provides an underlying programming model in order to design an application in the Oracle environment. It is also regarded as a model whose primary purpose is to encompass a broad range of service strategies and technologies. In this context, it is also important to note that it facilitates necessary technical know-how to connect the access methods.
Q : What is the fundamental difference between components and services?
A : You should be well aware of the fact that services are also known as a logical coupling of various parts so that the functionality of developing a business application can be achieved. On the other hand, the components are also referred to as implementation approaches in order to create a service. You should also be aware of the fact that these components can be in C++ and Java. On the contrary, the services would be exposed in a general format which resembles like web services.
Q : In SOA, is there a need to design systems from the beginning?
A : The answer is no. It is so because if you need to incorporate an existing system, you have to be on the lookout to facilitate loosely held wrappers. These loosely organized wrappers would always wrap your custom systems and would go a long way in exposing the functionality of the system in a significant manner.
Q : Describe a few hurdles that come in the form of implementing SOA
A : Here is the list of obstacles that come in the way of achieving SOA. They are as follows:
1. Scarcity of skills
2. Less return on investment on implementation of SOA projects
Q : Do you need the ability of SOA Governance while getting started?
A : In order to be successful in your endeavors of implementing SOA, you need to consider the business values that are involved with it from the beginning. Quite interestingly, one of the primary benefits which you would get from the implementation of SOA is improved knowledge in the alignment of business with IT. It is crucial for you to have proper knowledge on SOA governance as it would make you aware of the procedures and decision rights for IT and business to work collaboratively. However, you do not need a lot of SOA governance to get started but a little bit of it.
Q : Describe choreography in SOA
A : In choreography, there is an utter lack of business process to control. Each system in choreography would seamlessly mix into various components.
Q : How does orchestration differ from choreography?
A : As opposed to choreography, in orchestration, there is a business process which usually controls a variety of services which are also a part of the integration process.
Q : List the number of ways in which a process can be deployed
A : There usually exists three ways with the help of which a process can be implemented. They are as follows:
1. Through the use of Enterprise Manager Console
2. Through the use of Weblogic Scripts
3. Through the use of JDeveloper
Q : List the various types of design patterns that are used in the implementation of SOA
A : Here is the list of multiple types of design patterns that are widely used in the process of implementing SOA.
- Delayed response or asynchronous
- Fire and forget or synchronous
- Synchronous
Q : How can you increase the timeout related to a transaction in SOA?
A : In order to increase the transaction timeout, a lot of value needs to be changed to be on par with the value of the expected timeout. They are as follows:
1. Delivery Bean
2. JTA
3. Engine Beam
Q : Define DVM and its utility in the SOA implementation process
A : DVM is also known by Domain Value Map. It is defined as a static mapping between the trigger system and the source. It can also be used in transformations. Moreover, this value can be changed with the help of SOA Composer.
Q : Shed light on the dehydration store in an SOA environment
A : Dehydration store is also known as a database where the instances are stored. The database gets dehydrated or devoid of values when there is a constant occurrence of various futile activities. It also saves the information when the application runs for an extended period of time.
Q : Shed light on the primary difference between DVM and XREF
A : XREF is also known as a dynamic domain where the values of the XREF can be populated on a dynamic basis. Moreover, the data after the input process gets stored in the table named in the form of XREF_DATA. On the other hand, DVM is also known as a static mapping that lies between a source and target system. It can also be used in alterations.
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