by webadmin | May 3, 2012 | general
A legacy system is a system that essentially belongs to a previous generation, in a manner of speaking. It is typically an old system that despite its age and lack of modern compatibility still exists and continues to be in use. This is not because the users have found no reason to change it though. The fact of the matter is that it meets their requirements and does not present any problems while doing so. However, the more practical reason is the fact that it would be too expensive to have it replaced or overhauled. On top of that, a legacy system usually commands an important project, and so it would be too difficult to temporarily put it offline or to replace it. However, as with everything, there is always need for change. A legacy system may present problems and limitations to the organization, and stubbornly holding on to it may result in major repercussions, not only for the organization, but also the users who interact with it. One of the limitations of many a legacy system is the fact that it runs on old hardware, which may be obsolete. This can result in a lack of efficiency in that the legacy system in question may be too slow with relation to processing speed demands. Even finding spare components to replace those that may have gotten spoilt may be extremely difficult. Furthermore, though said spare components are found, constantly maintaining a legacy system can be counterproductive in the fact that the profits generated would have to be ploughed back into a depreciating asset. However, should the owners of the...
by webadmin | Apr 30, 2012 | Legacy integration
Legacy systems are computer components that are still in use despite the fact that they are running on old technology, including old school hardware features. They are still used because they form a large, rather bulky yet very important part of the organization in terms of the work they get done, and also their complexity. Furthermore the costs an organization would incur should they attempt to switch to a newer system are exorbitant enough to be discouraging. Therefore replacing a legacy system can turn out to be costly both monetarily and also productively. With that in mind, organizations not willing to lose these old generation systems choose to try and bring them into the future with the help of current technology – especially with regards to the hardware aspect. If there were a way to emulate the legacy system while using current technology, it would make the process of legacy integration easier. Also, if it were possible to use technology that can allow legacy systems to interact with modern hardware components, then legacy integration would be made practically effortless for the experienced software technician. However, in spite of how these methods of legacy integration sound simple and inviting, there are several obstacles that typically present themselves. For starters, considering that the creators and designers of the legacy system may not be there anymore to assist with the system, it may be difficult to fully understand the system. Furthermore, after years of maintenance, upgrading and several changes, the system will not be as it was originally designed, and the documentation if any may not be complete, or may even be...
by webadmin | Apr 19, 2012 | general
WebLogic Server performance and memory issues are not uncommon from time to time. This is quite natural for many applications, especially when in the growth period of the application or during processes that involve adding new features and functionality or new users to the system. In some cases, developers who write code are not necessarily able to predict how applications handle the load or will be used. The net effect of this can be a performance problem, with some of the commonly seen problems being application crashes resulting in out of memory errors and slow response times. The good news is that there are technical reasons why systems function in the manner they do, and that these performance problems can be solved. The main challenge when trying to fix WebLogic Server performance and memory issues is getting processes in place one at a time to handle the problem until the system becomes more stable. The next step involves you changing your process so as toincorporate best practices in your development life cycle, which may help you avoid similar problems in the future. Technical commitment to the project is required when trying to identify and solve the issues at hand. Solving your WebLogic Server performance and memory issues requires you to begin your efforts with the fundamentals. It is generally recommended that you think about creating small independent work groups to kick start WebLogic Server performance and memory use improvements in the following areas: Java: This is the foundation of the WebLogic server application. The best place to get information on a poorly performing application is from that application itself....
by webadmin | Mar 8, 2012 | legacy modernization, system integration
When an organization has taken the initiative to perform a system migration, it is not a decision made lightly. Legacy migrations are not commonly performed because of the cost that the organization incurs. And so after coming to terms and considering all the pros and cons, there is a check list to perform prior to a legacy migration. Firstly, the organization must inquire and decide on the legacy migration method they wish to carry out. There are several legacy migration methods that organizations can choose from; straight migration, migration by extension and upgrade inclusion migration. Should they choose to perform a straight migration, they will be moving the current legacy system as it is, without any upgrades whatsoever to the system. This method of legacy migration is mostly done by an organization that is completely satisfied with their system and how it handles operations. It focuses mostly on improving efficiency in terms of performance of the system and reducing the maintenance costs of the legacy system. Another method of legacy migration is by extension. Regardless of whether the organization is completely satisfied with the current system, there may be a component that cannot be upgraded and thus requires an additional aspect added to the legacy system. With the system running inefficiently, there is cost to the organization. An extension to the system makes the legacy system more cost effective. And finally there is legacy migration with the inclusion of an upgrade. Unlike that of the extension, the features of the legacy system are moved into the new system, and some new features are added on. Furthermore, the old features...
by webadmin | Mar 6, 2012 | legacy modernization
Why Modernize? Sooner than later, the computers we are using today will become obsolete, and eventually will be replaced or retired from use. Technology moves forward at a remarkable pace, so that most of the hardware and software we see in the market today can become nearly useless in less than half a decade since their introduction. The problem is that new versions of software and operating systems place ever-increasing demands on the hardware, and new software is often incompatible with older software. How does this reality affect your business? It is a reminder that on the fast-moving platform of business and commerce today, there’s a need to be more vigilant to newer developments and to find ways to easily adapt or modernize accordingly. Modernization is the only chance your business has to remain competitive in an ever-changing business climate and meet its challenges head-on. Consider this scenario: you expect an increase in demand for one of your products, but your current system may not be able to handle the surge and provide the right leverage to an influx of traffic and sales that you expect, or you may have to meet new regulatory requirements or support entirely new business initiatives. What would you do? You should think of ways and plan the means to have the right resources and augment the technologies that you will need to be able to prepare for a surge in demand. However, genuinely new software such as an ERP package will cost a lot of money, and you would like to save on cost, wouldn’t you? This is where modernization can come in...
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