GKR international group, the leader of China's rubber industry specialising in
rubber planting, processing, sales and R&D, has implemented an exemplary
purchase-production-sales data acquisition and management system for its 14
subsidiaries throughout Southeast Asia and China in only 3 months. It was accomplished
by developing an easy-to-use HTML5 web application integrated to a central ERP5.
Over the course of the last 13 years, the business of GKR grew rapidly with new
sites for rubber planting, processing, sales and R&D being built throughout
China and Southeast Asia. However, outside of accounting, all subsidiaries
still relied on excel documents to transfer daily operational data, such as
material purchases, internal inventory movements or production and sales figures
to the GKR headquarter in Guangzhou for further reporting, controlling and also
accounting. With time, the management of data became too complex and the origin of data was often untraceable. GKR executives thus decided to introduce
an ERP to first manage daily operational data from all subsidiaries in order to
produce consistent and accurate reports and then in a next step extend this system
to a fully featured ERP to align business processes with the GKRs exceptional
In order to produce end of the year reports across 14 production sites and sales
companies, the data acquisition and management system had to be delivered before
November 2015 in order for users from all subsidiaries to start inputting daily
operations data. Nexedi was initially contacted in May and the project was
eventually confirmed mid-July leaving only 3 months to deliver the system besides one week of on-site investigation.
GKR initially planned to use local ERP instances: Installing individual servers
at each site for local users to input daily data and then synchronize all sites
to a central instance located in Guangzhou. ERP5 can easily be setup
and maintained automatically across 14 locations using a deployment tool called "Configurator";
but the specific requirements of GKR along with need to automate data collection and
synchronization while ensuring homogenous data being generated across all sites
proved to be too much of a risk to take for GKR in the limited time available.
In addition, this solution requires setting up and configuring servers on all sites to communicate with
a central instance, optimizating this network and training staff, plus implementation of project specific functioncal requirements, all of these works would have introcued uncontrollable
factors in terms of required budget, time and human resources.
With almost 15 years experience in delivering complex ERP solutions, Nexedi
instead proposed to use a single, central ERP instance along with local browser-based
HTML5 Apps for data aggregation. These local applications would synchronize with
the central instance which should handle all data processing, management and
finally export structured data to procude business intelligence reports. GKR
eventually adopted this approach because it was a more simple solution at lower
overall project cost and promising higher performance than a cluster of more
than 14 servers. Nexedi then successfully delivered the system before November
and within the required budget achieving all project objectives.
Developing a custom HTML5 App as a specialized frontend to the central-ERP5 platform for data acquisition proved to have a number of
advantages for the GKR project.
The app was designed as simple as possible so users could understand immediately
how it should be used (like WeChat). Modules were limited to the bare necessities to input
daily purchase, production and sales data. Thus when going live, 20 users on
14 sites where able to input data on the 1st day in production just by watching
a simple training video.
With the offline capable HTML5 app running solely in the browser there was no
need to install or maintain any server infrastructure at subsidiary sites - a device with Chrome
web browser was sufficient. The app would download all necessary files on initial
fully responsive the app was usable over smartphone, tablet and PC and automatically
synchronized across devices. This means that even with no local internet available
data input was still possible through a smartphone and 2G/3G/4G network.
All modules for data acquisition were designed to operate offline to ensure data
could be entered at any time. Required access to the central instance was reduced to
downloading/synchronizing daily data from GKR HQ and uploading records at the
end of daily data inputs. The temporary absence of network is thus no longer a blocker.
Nexedi also implemented a Grandenet application delivery network to ensure
good connectivity to the central servers of GKR in Guangzhou. Grandenet helps
circumvent issues related to internet routing instabilities which are still
quite frequent in China, Thailand and Indonesia. During three months of observation,
Nexedi monitored network downtime and found that it did not prevent users to synchronize information
and upload data even from the most remote locations. As a side benefit, the setup
in this project also was a key enabler for Nexedis "fully online global ERP5 approach"
to be used in a networking environment where traditional web based solutions would
In addition to keeping infrastructure requirements to a single, central
ERP5 instance, Nexedi also proposed to further save time and cost by initially
maintaining the GKR server on a cloud platform. Being a fully open source
solution the whole architecture including ERP5 and deployment/orchestration
could later easily be migrated to an on-premise infrastructure, whenever it makes sense.
jIO framework. It was much simpler and faster to implement and maintain
within an HTML5 offline application than synchronizing the initally discussed
decentralized ERP5 instances. In addition this approach also enforced immediate
control on the base data definition.
Key users at GKR HQ were in charge of maintaining the quality of data across all
subsidiaries by ensuring well-defined raw data and verifying or correcting user
input errors before exporting data for report generation. Only one day of on-site
training with Nexedi's remote support was required to become operational, which
is also a key step in long-term utilization of any ERP system.
Another key advantage of managing data through a EPR5 and a central instance was
complete traceablity of all changes and actions. Every record provided creation
date, modification dates, users, upstream and downstream records etc. This way
validity and accuracy of data could be easily verified and monitored.
The current implementation is close to a standard ERP5 configuration differing
A key reason for GKR to initially request local infrastructure was the network
instabilities on many sites. This was deemed to much of an risk for inputing
large amounts of daily data. However, network conditions in reality are not
that much of a problem. Lack of Internet in rural areas in China or Southeast Asia was maybe true 10 years ago, but nowadays, Internet access is widely available throughout Southeast Asia and
mobile networks are probably state-of-the-art worldwide. In China, 4G Internet access is probably even better than in any country in the world. On locations that do
still lack proper connectivity, Thuraya IP satellite access can be setup in
a matter of minutes and provde a stable connection even under difficult
conditions (for example monsson).
The real problem with internet access inside China is routing related. This means
that while the local network connection may be good, some servers still can't be reached.
This was observed several times during this project's implementation with a very fast network in
Yunnan province (fastest in China) that still did not allow to reach the central
GKR server in Guangzhou while having excellent access to test servers in Hong Kong,
Tokyo or Beijing.
The issue was solved using a technology called "Grandenet" - an application delivery
network (ADN). In the case of Yunnan, this means connecting to a Grandenet
server in Beijing which then connected to the GKR server in Guangzou. By doing the "rerouting" manually, all network problems which people usually observe in China and which are actually routing problems rather than network access problems, were gone. There is not any more "network issue" for GKR.
As mentioned above, the jIO synchronization technology used in the offline HTML5 Application enables certain modules such as Purchase, Inventory, Production and Sales, which are essential for daily data input to be used offline. In some factories where the network conditions are very bad, user only needs to use the network to download information which are updated by GKR HQ everyday before starting to use the app, and to upload the records which are input by themselves everyday after they finish the daily data input work. Even though there is no good landline network during a whole day, user can still use 2G, 3G or 4G mobile network to access the central ERP5 to download and upload data when it is necessary.
The first two months in production went smoothly and without any problems related to
network issues on all 14 sites. Users were able to work offline to input
data as required, and even communicate with the central ERP5 almost all the time, which shows that the current HTMl5 app could easily be extended to a
full online ERP5 with certain key functionalities being available offline.
Even though users can use offline Html5 App to input daily operation data, they still need network to transfer these data from 14 sites in China and Southeast Adia to the central ERP5 platform which is hosted in China. To garantee the data transfer quality, with several alternatives for connectivity being setup, Nexedi still proposed
to use the Grandenet network optimisation service (called Grandenet-re6st) in China, because it was licenced and ensured reliable access across China and from abroad. It is using an IPv6 based application delivery network (ADN) deployed
by Nexedi that can gurantee reliable access to the platform in Europe, Oceania and the
United States by constantly monitoring network connectivity and offering users
the possiblity to easily select the best Frontend/connection whenever necessary. This ADN has already been used successfully in China (a Meteorological Bureau) and has received official license from Chinese government.
Being open source, ERP5 allows all users to customize their UI themselves by
adding necessary translations. Currently the HTML5 App supports Chines, English
and Thai users with implementing a new language only requiring a few hours. The
central ERP5 server is available in Chinese and English (no Thai required) and can
also easily be extended.
Customized structured data export allows to provide whatever GKR needs for creating
daily or monthly reports and business intelligence. Reports are evolving
depending on the requirements of managers and executives as well as changes in
underlying GKR business processes. For example once a production process is
modified, the calculation of production cost may be modified as well so the
source data provided by ERP5 should also be modified in order to create the
To give flexibility in reporting, Nexedi thus implemented several custom reporting
schemes displaying available source data according to expected report layouts and
allowing to download data for import into GKR's 3rd party reporting tool.
The combination of an HTML5 App and central ERP5 platform allows for powerful
future extensions to the GKR ERP. A report module can show instant reports for
GKR managers and executives whenever and whereever needed using search conditions
(online) or daily reports (offline). The report module could also be used
for validation of data input quality, inventory could be adjusted according to
purchase and sales exchange or price modifications. New modules could be added
to manage the return of products and materials as well as inventory shortages and
overstocking. The HTML5 App itself could be extended to cover
the full supply and trade chain including trade documents (sales, delivery, payment),
printouts and accounting as well as CRM. Within two years, a sales prediction
feature could also be implemented with sufficient historical data and external
information sources to provide meaningful results.
To sum up: The combination of an HTML5 App and central ERP5 platform can
provide a full ERP to GKR without having to waste time and money on building a
traditional distributed IT infrastructure while at the same time achieving a powerful, failsafe
and performant system with essential features for GKR daily operations.