Oracle WebCenter Content

Oracle WebCenter Content provides organizations with a unified repository to house unstructured content, and deliver it to business users in the proper format, and within context of familiar applications to fit the way they work.
http://www.oracle.com/us/products/middleware/webcenter/content/overview/index.html

Process improvement models

• Capability Maturity Model Integration

The Capability Maturity Model Integration (CMMI) is one of the leading models and based on best practice.
Independent assessments grade organizations on how well they follow their defined processes, not on the quality of those processes or the software produced

• ISO 9000

ISO 9000 describes standards for a formally organized process to manufacture a product and the methods of managing and monitoring progress.

• ISO/IEC 15504

ISO/IEC 15504 Information technology — Process assessment also known as Software Process Improvement Capability Determination (SPICE), is a "framework for the assessment of software processes".

Software development models

• Waterfall model

The waterfall model shows a process, where developers are to follow these phases in order:

• Requirements specification (Requirements analysis)
• Software design
• Implementation and Integration
• Testing (or Validation)
• Deployment (or Installation)
• Maintenance

• Spiral model

The key characteristic of a Spiral model is risk management at regular stages in the development cycle

• Iterative and incremental development

Iterative development prescribes the construction of initially small but ever-larger portions of a software project to help all those involved to uncover important issues early before problems or faulty assumptions can lead to disaster.

• Agile development

 Agile software development uses iterative development as a basis but advocates a lighter and more people-centric viewpoint than traditional approaches. 

Agile processes use feedback, rather than planning, as their primary control mechanism. 

The feedback is driven by regular tests and releases of the evolving software.

•  Extreme Programming (XP)
•  Scrum
•  Dynamic systems development method
• Code and fix

• Yazılım Süreci Modelleri

Süreçlere ilişkin ayrıntılarla ya da süreçler arası ilişkilerle ilgilenmezler.

Gelişigüzel Model
Barok Modeli
Çağlayan (Şelale) Modeli
V Modeli
Helezonik (Spiral) Model
Evrimsel Model
Artırımsal Model
Araştırma Tabanlı Model
https://docs.google.com/viewer?a=v&q=cache:h-uE4oVxKEkJ:metinakbulut.com/YAZILIM-MIMARISI/Bolum-02.ppt+&hl=en&pid=bl&srcid=ADGEESiVmUq28rel_uDufGt4hTrHCQJobcQWjz1uLDTfP1KdtLjfuTx16UMDgoKfKVPxsiUCvkMgGprNKDLuAGHyg7PCCwpQVsYqL4dIMBrwbjyYjc7-5SZ7k3i8lZk811DWSUMNY6pU&sig=AHIEtbSNh8MipDzJioe4jerIIEKNlu6IWQ

• Software process models:

Waterfall model
Evolutionary development
Formal systems development
Reuse-based development

Hybrid software process models:
Incremental development
Spiral development
https://docs.google.com/viewer?a=v&q=cache:mzUVIL-enOoJ:ranger.uta.edu/~khalili/Chapter%25202%2520-%2520Software%2520Processes.ppt+&hl=en&pid=bl&srcid=ADGEESi6A2gA72cNC8G9XZUGMFbdp_KiBVyfImtHJ5fQkFFx5gMfiay2PqBy8dPVIWC2LtNxTJmKtyDsEOV1o0xzG5FK15XLMvuz7r7yw1wAGdU-cHsxsaSBTnIsUbh3sEaUXd8-VxQz&sig=AHIEtbTW9RfBAQsoyIn3uwsmbqdgsKu8rA

• the key pros and cons of six of the most common SDLC methodologies

1. Waterfall Model
Waterfall is the oldest and most straightforward of the structured SDLC methodologies — finish one phase, then move on to the next. No going back. Each stage relies on information from the previous stage and has its own project plan.Waterfall is easy to understand and simple to manage. But early delays can throw off the entire project timeline. And since there is little room for revisions once a stage is completed, problems can’t be fixed until you get to the maintenance stage. This model doesn’t work well if flexibility is needed or if the project is long term and ongoing.

2. V-Shaped Model
Also known as the Verification and Validation model, the V-shaped model grew out of Waterfall and is characterized by a corresponding testing phase for each development stage. Like Waterfall, each stage begins only after the previous one has ended. This model is useful when there are no unknown requirements, as it’s still difficult to go back and make changes.

3. Iterative Model
Instead of starting with fully known requirements, you implement a set of software requirements, then test, evaluate and pinpoint further requirements. A new version of the software is produced with each phase, or iteration. Rinse and repeat until the complete system is ready.One advantage over other SDLC methodologies: This model gives you a working version early in the process and makes it less expensive to implement changes. One disadvantage: Resources can quickly be eaten up by repeating the process again and again.

4. Spiral Model
the Spiral model takes a cue from the Iterative model and its repetition; the project passes through four phases over and over in a “spiral” until completed, allowing for multiple rounds of refinement. This model allows for the building of a highly customized product, and user feedback can be incorporated from early on in the project. But the risk you run is creating a never-ending spiral for a project that goes on and on

5. Big Bang Model
the Big Bang model follows no specific process, and very little time is spent on planning. The majority of resources are thrown toward development, and even the client may not have a solid grasp of the requirements. This is one of the SDLC methodologies typically used for small projects with only one or two software engineers.

6. Agile Model
By breaking the product into cycles, the Agile model quickly delivers a working product and is considered a very realistic development approach. The model produces ongoing releases, each with small, incremental changes from the previous release. At each iteration, the product is tested.
This model emphasizes interaction, as the customers, developers and testers work together throughout the project. But since this model depends heavily on customer interaction, the project can head the wrong way if the customer is not clear on the direction he or she wants to go.
https://www.roberthalf.com/technology/blog/6-basic-sdlc-methodologies-the-pros-and-cons

Oracle Fusion Middleware

Oracle Fusion Middleware 11g's hot-pluggable architecture allows you to make the most of your current investments in applications and technology, while also taking advantage of modern hardware and software architectures. The goal of this release is to maximize your efficiency in both IT and business processes to give you the agility to adapt and innovate

http://www.oracle.com/technetwork/middleware/fusion-middleware/overview/index.html?origref=http://www.google.com/search?q=Oracle+Fusion&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Oracle BPEL

Business Process Execution Language (BPEL), short for Web Services Business Process Execution Language (WS-BPEL) is an OASIS standard executable language for specifying actions within business processes with web services.

BPEL is the standard for assembling a set of discrete services into an end-to-end process flow, radically reducing the cost and complexity of process integration initiatives

http://en.wikipedia.org/wiki/Business_Process_Execution_Language
http://www.oracle.com/technetwork/middleware/bpel/overview/index.html

Oracle GoldenGate

Oracle GoldenGate is a comprehensive software package for enabling the replication of data in heterogeneous data environments.
The product set enables high availability solutions, real-time data integration, transactional change data capture, data replication, transformations, and verification between operational and analytical enterprise systems

http://www.oracle.com/technetwork/middleware/goldengate/overview/index.html

SharePlex for Oracle

If you’ve tested Oracle GoldenGate and found it too complex and expensive, tried Streams only to discover it’s slow and nearing its EOL, or need more availability than Data Guard can provide, it’s time to check out a better solution.

SharePlex® for Oracle is a mature, high-performance, high-availability technology that offers a low-cost alternative to other Oracle replication tools.

This Oracle replication solution ensures business continuity while meeting your database operational goals.
It provides a real-time copy of production data – without impacting your OLTP system’s performance and availability.

What is synchronization?

• What is synchronization? 

Synchronization is a process of controlling the access of shared resources by the multiple threads in such a manner that only one thread can access a particular resource at a time.
In non synchronized multithreaded application, it is possible for one thread to modify a shared object while another thread is in the process of using or updating the object's value.
Synchronization prevents such type of data corruption which may otherwise lead to dirty reads and significant errors.

Can a class be synchronized?
No