Testimonials
"We can count on Asellus for all our major network support. They have an excellent technical staff that are very experienced and responsive to our needs. They are the very best at what they do!"

David S. Goeke
Director of Info. Systems
AF&L Insurance Company


"The Asellus team is a pleasure to work with, and have always been able to meet our needs in a timely manner. Our Network Administrator relies on Asellus when issues arise that he needs help with, and we are extremely confident in Asellus' abilities."

Travis Laborde
MIS Manager
J.G. Wentworth


"We use Asellus for those complex Networking issues that no one else can resolve. They have never failed to find us a reasonable resolution."

Mick Terragrossa 
Director of I.T.
Accounts Receivable Mgmt., Inc.

"Asellus continually supports and administers our high security network instilling both confidence and peace of mind for One2OneUS. Regardless of changing technology, Asellus offers the latest solutions to meet and exceed our technology needs."

Joseph J. Rossi
President
One2OneUS

"Asellus has provided Milton Roy with the expertise needed to advance our systems and networking. We have come to rely on Asellus. They have proven over and over that their team can provide solid solutions in a timely and cost effective manner. "

Bill Grosso
Information Tech. Manager
Milton Roy Company

"When our network went down, Asellus acted in a timely manner to help resolve our network problems with little down time.  They even assisted in getting the necessary equipment we needed to get back up and running as quickly as possible.  That's exactly the kind of services that we needed here at Robins' Nest where network access is a crucial part of our daily routine.  Asellus came through for us.  Everyone was very pleased to see the network back up and running in such a short time.  Thanks, Asellus."
IT Manager
Robins Nest.


The most important unseen factor in running our business is the dependability and stability of our information systems.  The entirety of sales, operations and management rests its ability to move forward on our ability to provide history, numbers, projections, communications and documents.  The technical support and expertise offered by Asellus has kept us running smoothly, so that our staff even takes having confidence in information/communications for granted.  Asellus handles work with a professional edge that gives problem solving and project management a seamless weave into our workflow. 

Steve Pollack

IT Director

Mitchell and Ness (div of SLD)


"From day one, Abacus IT has quickly responded to Aquatrols’ needs in a polite and professional manner. I cannot say enough good things about the employee’s at Abacus and the quality of service they have continually provided. Asellus was there for us every step of the way when we moved our corporate headquarters. From wiring our telephone and internet needs to making sure our service was functioning correctly, I never had to worry about failing as the support provided by Asellus made the move a fairly seamless endeavor."

Sandra A. Hladun
Accounting Manager
Aquatrols Corporation of America, Inc.


"The Asellus team has provided us invaluable assistance in setting up and maintaining our network system.  They continue to meet all of our needs in a professional and timely manner.  We have the utmost confidence that Asellus will be supporting our network issues for a long time to come!  "

Theresa Scanlan
Vice President - Corporate Affairs 
J.D. Capital, Inc.

"Asellus has been a tremendous help in developing solutions appropriate to the size of our operation and implementing those solutions. I am happy with their willingness to work as a partner and scale their products and services to our unique needs."

Bob Miller
Director of Technology
Germantown Friends School
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Legacy Systems PDF Print E-mail

Legacy System & Application Support & Migration - Due to Abacus IT's wide range of systems engineering experience, we have the proper support staff needed to support older legacy or custom built applications, as well as, assist with the migration process to newer platforms.

 A legacy system is an existing computer system or application program which continues to be used because the user (typically an organisation) does not want to replace or redesign it. Many people use this term to refer to "antiquated" systems.

Legacy systems are considered to be potentially problematic by many software engineers  for several reasons. Legacy systems often run on obsolete (and usually slow) hardware, and sometimes spare parts for such computers become increasingly difficult to obtain. These systems are often hard to maintain, improve, and expand because there is a general lack of understanding of the system. The designers of the system may have left the organisation, leaving no one left to explain how it works. Such a lack of understanding can be exacerbated by inadequate documentation or manuals getting lost over the years. Integration with newer systems may also be difficult because new software may use completely different technologies.

Despite these problems, organisations can have compelling reasons for keeping a legacy system, such as:

  • The costs of redesigning the system are prohibitive because it is large, monolithic, and/or complex.
  • The system requires close to 100% availability, so it cannot be taken out of service, and the cost of designing a new system with a similar availability level is high.
  • The way the system works is not well understood. Such a situation can occur when the designers of the system have left the organisation, and the system has either not been fully documented or such documentation has been lost.
  • The user expects that the system can easily be replaced when this becomes necessary.
  • The system works satisfactorily, and the owner sees no reason for changing it � or in other words, re-learning a new system would have a prohibitive attendant cost in lost time and money. A.K.A: If it isn't broken don't fix it.

If legacy software runs on only antiquated hardware, the cost of maintaining the system may eventually outweigh the cost of replacing both the software and hardware unless some form of emulation or backward compatibility allows the software to run on new hardware. However, many of these systems do still meet the basic needs of the organisation. The systems to handle customers' accounts in banks are one example. Therefore the organisation cannot afford to stop them and yet some cannot afford to update them.

A demand of extremely high availability is commonly the case in computer reservation systems, air traffic control, energy distribution (power grids), nuclear power plants, military defence installations, and other systems critical to safety, security, traffic throughput, and/or economic profits.

The change being undertaken in some organisations is to switch to Automated Business Process (ABP) software which generates complete systems. These systems can then interface to the organisations' legacy systems and use them as data repositories. This approach can provide a number of significant benefits: the users are insulated from the inefficiencies of their legacy systems, and the changes can be incorporated quickly and easily in the ABP software. (At least, that's the intention.)

Note that "legacy" has little to do with the size or even age of the system � mainframes run 64-bit Linux and Java, after all, right alongside 1960s vintage code. In fact, some of the thorniest legacy problems organisations now face are in trying to leverage or replace existing "fat client" Visual Basic code as customers demand reliable Web access

Legacy support Solution:

Abacus IT has the Experience and the Know how to create a virtually smooth transition from Legacy to state of the art.  While supporting an Application thru its Dismantling and Migration

Virtualization technologies can sometimes allow for a resurgence of these legacy apps while transtioning to a more robust replacement. Contact US!  we are always more than happy to be of service in such troubled times.

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