Legacy System Modernization

Category:
Outsourcing Development

Legacy System
Modernization - Accelerate your business with new technology

Table of contents Legacy system challenges
  1. Technician problems
  2. Unable to respond to changes in work/business
Our approach to updating legacy systems
  1. Understanding existing operations
  2. Understand existing data
  3. Replacement using the latest technology
If you would like to learn more about ” legacy systems”, please refer to this article. 

Legacy System Challenges

Legacy systems require a structural review, so rather than deepening our understanding of the existing system,
we understand “existing operations” and “existing data” and propose a new system using the latest technology. We will do so.

We have carried out legacy system update projects at the request of many of our customers.  
Although there are differences in size and role in the business, the following points are common.

1. Technician Problems

Lack of successor

When considering an ERP package, the central management of data including human resources and accounting is promoted, but if the business adopts a highly unique supply chain management, it may be difficult to handle everything with one package software. This may lead to unreasonable demands, resulting in increased costs for the initial system construction and operation, or a half-hearted response in any business area.

Black box

Over the years, documents (specification documents) have almost never been completely updated, and the more important the system, the more likely it is that no one else (or few) knows about the system. It’s becoming a problem.

Lack of maintenance

In some cases, no one is able to modify / review the program, but business needs continue to use it. In this case, even if problems such as data inconsistency occur due to lack of maintenance, users continue to use the system as long as it can be used.

2. Unable to respond to changes in work / business

In the retail industry, when you want to develop a core system from scratch in-house, the main goals are as follows.  

Scalability

In response to changes in operations and business, we have not been able to add sufficient functionality, and our existing systems have reached their breaking point.

External collaboration

Weak coordination with external parties, especially the inability to collaborate in real time, makes it incompatible with operations/businesses that require immediacy, such as e-commerce.

Execution location

It was developed with the assumption that it would be used in an office, so it cannot be used for remote work or on a smartphone, leading to the issue of not being able to accommodate a variety of work styles.

Our approach to updating legacy systems

1. Understanding existing operations

Understand the business that will be performed using the target system. After clarifying user roles, authority / responsibilities, and business flow, we will organize the system’s positioning.

2. Understand existing data

Data is the lifeblood of a system. We acquire past input/output data, perform verification in parallel operations as much as possible, and proceed with replacement while ensuring data integrity.

3．Replacement using the latest technology

・We will propose the optimal system architecture to minimize development/operation costs and operational burden.

・We offer highly available cloud infrastructure while ensuring security.

・We use the latest web development technology to maximize development productivity.
legacy-system-3-steps-of-modernization
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Reference Materials
What is a legacy system?