Existing system investigation
Identify what is happening in a system with missing documentation, unclear errors or incomplete handovers.
- Issue and cause investigation
- Impact analysis
- Current behavior documentation
SYSTEM DEVELOPMENT / TECHNICAL SUPPORT
Understand your system.
Then make it better.
Legacy systems, incomplete documentation, or an unavailable former developer? We start by understanding what is running before recommending changes. EC-CUBE / PHP / MySQL / AWS / Linux / Git & GitHub.
WHAT WE DO
Clarity before change.
Before touching a production system, it matters to know what it does, which components are involved, and what could be affected.
River Leaf Direct reviews source code, configuration, logs, databases and operating procedures to build that understanding.
SERVICES
How we can help
EC-CUBE / PHP changes
Focused improvements with careful consideration for the existing business operation.
- Products, stock and CSV
- Admin tools and email handling
- Existing feature adjustments
AWS / Linux / GitHub
Understand server and repository setups so changes can be maintained and handed over.
- AWS / Linux environment checks
- Git and GitHub practices
- Documentation and handover
OUR PRODUCTS / NEW BRAND
A product brand by River Leaf Direct
Making learning and work a little easier.
Explore productsApp development
RIVUNOA is our emerging brand for apps and AI-powered services. We are developing practical tools around everyday learning, routine work, and the operations behind online commerce.
BRAND DOMAINrivunoa.comBrand website in preparation
IN DEVELOPMENT
What we're exploring
01
Learning tools
Apps that support study routines and progress.
02
AI workflow tools
Practical support for repetitive work and checks.
03
Commerce tools
Tools to help with product and store operations.
These are development directions, not products currently available for purchase.
EXPERIENCE
Improving a live wholesale EC platform.
We provide ongoing investigation, maintenance and incremental updates for an EC-CUBE-based B2B wholesale site.
B2B WHOLESALE / ONGOING SUPPORT
Maintenance and improvement
Our work aims to limit impact on day-to-day business while understanding existing source code and configuration.
Situation
Existing production system, customizations, documentation review
Work
Product and stock data, CSV, admin tools, email handling, investigation and change management
Technology
EC-CUBE / PHP / MySQL / AWS / Linux / GitHub
Approach
Investigate → assess impact → make focused changes → verify → document and hand over.
Client details, system URLs and proprietary information are withheld for confidentiality. See our security practices.
PRICE GUIDE
Starting points for your budget.
INVESTIGATION
Initial system investigation
¥22,000+
Assess an unfamiliar or malfunctioning system and identify what to check next.
SMALL CHANGE
Small change with investigation
¥55,000+
Scoped changes with basic checks after assessing the affected components.
DOCUMENTATION
Focused documentation
¥88,000+
Review and document roughly one or two existing functions.
Prices in Japanese yen are indicative; scope and final quotation are confirmed beforehand. Smaller, clearly defined corrections may start at ¥11,000.
Detailed pricing →APPROACH
Investigate, improve, document.
01
Discuss
Understand the issue and the information already available.
02
Investigate
Review the relevant source, settings, logs and data.
03
Plan
Outline likely causes, impact and options.
04
Change and verify
Proceed within the agreed scope and confirm the result.
05
Hand over
Leave a record of changes and important caveats.
WORKING STYLE
Remote-first. Written communication.
Online across Japan
Investigations and reports are normally handled remotely.
Form and email
Written details help prevent misunderstandings.
When needed
Online meetings can be scheduled where appropriate.
Usually within 2 business days
We review requests before responding; immediate phone support is not standard.
ARTICLES / EXPERIMENTS
Development notes
We share selected technical experiments and lessons through note, primarily in Japanese.
CONTACT
Tell us what you're working on.
It's fine if the technical details are not yet clear.