Running head: Walmart Information Systems
Walmart Information Systems
Research Project-Group2
CIS 511
Fall 2011
Amber Slemmons, Brooke Williams, Cheri Evans, Ismael Molina, & Wesley Belz
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Walmart Information Systems
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Walmart Information Systems
Executive Summary:
Walmart, the billion dollar retail giant, has grown significantly over the past five decades,
incorporating numerous different types of information systems into their daily operations. The
company is well recognized for their innovation when it comes to utilizing the latest technologies
and information systems to maximize their profitability. Information systems structures and
processes play a critical role in Walmart’s success and today they are bringing that innovative
spirit to the market as they move toward full implementation of Radio Frequency Identification
(RFID). This technology allows for Walmart’s operations to function efficiently and effectively
as they are capable of sending and receiving real time data to the networks. By doing so they are
able to communicate the information to the retailer and the product manufactures making it
possible for Walmart to remain competitive in the retail industry by properly controlling its
inventories.
This report will explain how Walmart has utilized several information systems
throughout the course of its history such as: point of sale, satellite communication systems, data
warehouses, retail link systems, electronic data interchange (EDI), and most recently web bases
platforms, but none are as innovative as RFID (Wailgum, 2007). This technology was previously
tested by the U.S. Air Force to try and reduce labor costs and allow management to make better
decisions based on more accurate information regarding tracking packages/inventories (Roberti,
2004). This technology in the hands of the retail giant will allow for more up to date accurate
information to flow through the networks to management so that they can reduce costs and
increase profitability by keeping current inventory levels under control.
In the summary of functions section the paper expounds how Walmart does an excellent
job of incorporating transactional processing systems, management information systems,
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decisions support systems, and business intelligence systems into their everyday business
processes. One major system that links the entire supply chain to the Walmart enterprise, with
the use of the RFID system, is the supply-chain management system that Walmart utilizes. These
systems help suppliers, purchasing firms, distributors, and logistic companies share information
systems about orders, production, inventory levels, and delivery of product and services so that
they can source, produce, and deliver goods and services efficiently (Laudon & Laudon, 2010).
The IS department section and the description of structures and processes for managing
IS’s for Walmart is explained in this paper through interviews with IS faculty at Walmart’s
corporate headquarters, as well as local employees. The information gathered from these
interviews illustrate Walmarts extremely structured IS department. Functioning from a top down
approach Walmart is capable of micromanaging all of its resources both capital and human in
nature.
A deeper explanation of Walmart’s current Information System direction, RFID, is
presented detailing the capabilities, users involved, implementation, and benefits to the entire
supply chain system. As mentioned before, the innovative RFID system is the new era of
inventory management, which Walmart is going to try and implement worldwide to increase
their profitability by properly managing their inventories.
Concluding the report will be the appendices, which illustrate the organizations financial
success over the past few years. Walmart’s success could only have been accomplished through
the innovative and carefully managed use of the information systems and the systems that link
the enterprise to its manufacturers, suppliers, distributors, and logistics departments that are
explained in greater detail in this research paper.
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General Background:
Walmart is a discount retail store that first opened its doors in Rogers, Arkansas on July
2, 1962, by Sam Walton. It began as a small discount store because Mr. Walton wanted to offer
lower prices so people could save money and live better (“History Timeline”, 2009). He believed
it was the organization’s responsibility to provide the customer with what they wanted, which
was (and still is) friendly service, low prices, and quality merchandise. On October 31, 1969 it
incorporated into Walmart Stores, Inc. and was first publicly traded on the New York Stock
Exchange in 1972. Today Walmart is known as a retailing giant with over 9,600 retail units in
over 28 countries, 2.1 million employees worldwide, including almost 1.4 million in the United
States alone, and yearly revenues of about $431.87 billion as of 2010 (“Wal-Mart Stores Inc.
(WMT)”, 2010). Information about Wal-Mart Stores, Inc. from Hoover’s company profile states
that:
Walmart Stores is an irresistible (or at least unavoidable) retail force that has yet to meet
any immovable objects. Bigger than Europe's Carrefour, Metro AG, and Tesco combined,
it's the world's #1 retailer with more than 2.1 million employees. In the US Walmart
operates about 700 discount stores, 2,900 Supercenters that sell groceries and general
merchandise, 610 Sam's Club warehouses, and a growing number of smaller format
stores. The company's faster growing international division (26% of sales) numbers more
than 4,500 locations; Walmart is the #1 retailer in Canada and Mexico and has operations
in Asia (where it owns a 95% stake in Japanese retailer SEIYU), Africa, Europe, and
South America (“Wal-Mart Stores, Inc.”, 2011).
Walmart Corporate and Financial Facts explains that “Walmart ranked first on the 2011 Fortune
500 list of the world’s largest companies revenues”, and the main competitors to Walmart are:
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Europe’s Carrefour that brings in yearly revenues of around $121.27 billion, Costco Wholesale
Corporations that brings in yearly revenues of around $88.92 billion, Target Corporations that
brings in yearly revenues of around $68.44 billion, and discount and variety stores that bring in
yearly revenues of around $6.24 billion (“Wal-Mart Stores, Inc.(WMT)” , 2010).
Direct Competitor Comparison
WMT
PVT1
COST
TGT
Industry
Market Cap:
195.99B
N/A
35.02B
34.38B
6.55B
Employees:
2,000,000
471,7551
92,000
355,000
30.52K
8.10%
N/A
16.80%
5.10%
6.90%
440.14B
121.27B1
88.92B
69.24B
6.41B
Gross Margin (ttm):
25.04%
N/A
12.57%
29.94%
30.15%
EBITDA (ttm):
34.23B
N/A
3.30B
7.51B
820.53M
5.94%
N/A
2.74%
7.80%
5.97%
15.59B
752.70M1
1.46B
2.98B
N/A
EPS (ttm):
4.72
N/A
3.30
4.30
1.16
P/E (ttm):
12.04
N/A
24.48
11.92
20.10
PEG (5 yr expected):
1.33
N/A
1.59
1.11
1.13
P/S (ttm):
0.44
N/A
0.39
0.50
0.50
Qtrly Rev Growth (yoy):
Revenue (ttm):
Operating Margin (ttm):
Net Income (ttm):
Pvt1 = Carrefour SA
COST = Costco Wholesale Corporation
TGT = Target Corp.
Industry = Discount, Variety Stores
1
= As of 2010
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An organizational structure is “the framework, typically hierarchical, within which an
organization arranges its lines of authority and communications, and allocates rights and
duties…. [it]determines the manner and extent to which roles, power, and responsibilities are
delegated, controlled, and coordinated, and how information flows between levels of
management” (“Organizational Structure,” 2011). An organization’s, “structure depends entirely
on the organization's objectives and the strategy chosen to achieve them. In a centralized
structure, the decision making power is concentrated in the top layer of the management and
tight control is exercised over departments and divisions” which is evident in the organizational
structure of Walmart Stores, Inc. (“Organizational Structure,” 2011). Since, Walmart has all
decision making paths leading down from the CEO through the executive committee and to the
appropriate branches, it is easy to see that Walmart utilizes a centralized structure. At the top of
the organizational structure is the President and CEO Mike Duke. Mr. Duke is over the
Executive Committee which includes the CFO Charles Holley, CIO Rollin Ford, and other
Executive Vice Presidents. The executive committee, including the CEO, is put in place by the
Board of Directors. Rob Walton is the Chairman of the Board of Directors which includes other
individuals elected by stock holders. Currently the board consists of: Jim Walton, Aida Alvarez,
James Cash, Gregory Penner, Roger Corbett, Douglas Daft, James Breyer, Arne Sorenson,
Christopher Williams, Steven Reinemund, Lee Scott, Linda Wolf, and Michele Burns.
Organizational chart illustrated in appendices Graph 1.
According to Thomas Wailgum, (2007), Walmart has been able to make their everyday
low price strategy a reality because of their information technology systems which has evolved
throughout the past 50 years. In 1975, Walmart introduced a point of sales system which they
currently use in conjunction with a radio frequency identification device (RFID). Bar codes for
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scanning POS data was introduced in 1983. In 1987, Walmart completes what is at the time the
largest private satellite communication system in the U.S. In 1990, data warehouse prototype is
created to store historical sales data. In 1992, Walmart deploys the Retail Link System to
strengthen supplier relationships. Walmart makes Retail Link and EDI available through the
Internet platform. In 2002, Walmart turns to the Internet for data exchange with thousands of its
global suppliers. In 2005, Walmart announces its deployment of radio frequency identification
technology (Wailgum, 2007). RFID allows them to track their inventory through the entire
process from the warehouse to the showroom floor (Laudon & Laudon, 2010). RFID began as a
way to track train cars with the use of bar codes and stationary readers, and has evolved over the
years. The RFID tags continued to evolve and by the 1990’s they became widely used for
automated toll collection systems. These systems allow people to pay for the use of toll roads
without having to stop and physically pay a toll. Today toll road payments can still be made in
the same fashion with the help of RFID tags. Cardullo (n.d.) explains how proud he is to see how
his ideas for the applications from the 70’s for this system are now being widely adopted.
Today, the RFID tag in its various configurations is becoming ubiquitous (Cardullo, n.d).
Walmart Information Systems:
Walmart’s information strategy involves an approach which seeks to centralize many of
the worldwide operations in order to create a common scheme of practices which can be
duplicated and effectively utilized at stores around the globe. Technology is intertwined with
virtually every aspect of Walmart’s business practices from the initial inventory accumulation
from suppliers to the customer relationship efforts which the world’s largest retailer has come to
be known for.
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According to Walmart.com, “Technology touches every part of our business every day,
from data centers to self-check-out lanes, satellite communications, handheld devices and
electronic product codes” (“Information Systems (ISD),” 2011). It is the successful
implementation of this technology into daily practices that has aided Walmart in their quest to
maintain the position of low cost leader. One of the most notable advancements made by
Walmart in regards to supply chain management was in the evolution of data mined from the
universal bar code system. While Walmart was not the original creator of the point of sale
system which shifts power to the retailer, they have been noted to be one of the most effective at
organizing collected data into useful information. Utilizing data collected from bar codes, the
organization is able to keep track of sales trends at any given point by identifying each item as an
individual entity with unique characteristics. Once an item has been purchased, Walmart has
immediate access to information regarding the sale including product type, price etc. Combining
this with advanced telecommunications, allows for high speed information transfer between
branch computers and the central system in order to maintain a real-time database with complete
data on inventory levels and assortment. This allows them more leverage over manufacturers as
they know exactly what they need, when they need it and what lengths they are willing to go to
obtain it. The threat of running out of inventory is reduced as this technology can offset spikes in
demand to avoid disappointing customers. In addition, analyzed data can reveal items which are
not profitable for the company and may need to be discontinued. Using this acquired knowledge,
as well as advanced communication methods, the company is able to properly prepare for the
future.
Furthering this concept, Walmart has incorporated information systems into a distribution
system that is almost unmatched. 150+ distribution centers strategically located around the globe
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are able to move large quantities of goods as they are needed at the surrounding stores. Logistical
operations at these distribution centers can take in massive amounts of merchandise and have it
recorded, sorted and packed to be sent to stores by the next day. In a 2004 interview with PBS’
Paul Soloman, Rollin Ford the Executive Vice President of Logistics (current CIO) described
this “here today, gone tomorrow” philosophy explaining that “efficiency and processing is the
key, [merchandise] is put on the conveyor upon receipt; never gets slotted, never sits on a rack,
goes immediately to our stores”(Ford, 2004). This methodology dramatically increases
productivity while reducing storage and inventory costs as workers only have to handle the items
once and merchandise is delivered “just in time.” Furthering this concept of gains in efficiency,
the Walmart team is tending to become more mechanical in nature; as jobs which were
previously performed by human worked, which must be paid a salary, are now able to be
performed by machines.
The company has also been able remain competitive in growth trends due to constant
innovation and the ability to maintain a knack for proactive reactions to customer wants and
needs. For example, the introduction of “self-check-out” lanes serves to provide customers a fast,
easy alternative to standing in line when they need to get in and out of the store quickly. These
lanes are equipped with a scanner for customers to scan the barcodes of the items they would like
to purchase and a touch screen interface to walk them through the steps of the transaction. While
Walmart is not the only retailer to offer this technology, it does put them miles ahead of those
competitors who did not realize the tremendous impact this advancement would have on the way
consumers shop.
In addition to the insatiable desire to open more and more stores in order to extend
operations to reach a greater number of potential customers, Walmart has ventured into the e-
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commerce era by introducing a means through which to purchase items online at Walmart.com.
Although, the initial venture into the online world was a bit sluggish due to such a strong
presence of the brand in traditional brick and mortar stores, Walmart has refocused its efforts on
utilizing the online community to subsidize its business opportunities with consumers. By
providing a product offering very similar to that which can be found in traditional stores and
offering the majority of them in conjunction with free shipping opportunities, Walmart will now
be able to reach a broader population of customers including those who may not be within a
feasible geographic reach to shop Walmart on a consistent basis or those who prefer to shop from
the comfort of their own homes. One particular area in which Walmart is hoping this online
component will have an impact is the electronics department, as customers are more apt to shop
around online for the best deal on such items as compared to less consequential items which may
be purchased on impulse.
The IS Department:
The Information Systems Department has approximately 3000 associates that work in the
David Glass Technology Center located in Bentonville, Arkansas. WalMart’s IS Department is
very hierarchal. It includes a Business Analyst, Senior Business Analyst, Manager, Senior
Manager and levels below them. According to Darin Brazile, the department is very structured
and formal (D. Brazile, Personal Communication, November 2, 2011). It is so structured that
they track the time spent on projects down to fifteen minute increments. Doing this keeps them
on track for budget and productivity metrics. Rollin Ford is the Executive Vice President and
Chief Information Officer of WalMart Stores Inc. since 2006. His responsibility is all General
Merchandise, Fashion, Grocery, SAM’S, Import, and Specialty Distribution Centers. Ford
reports directly to Mike Duke the Chief Executive Officer.
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Description of the Structures and Processes for Managing ISs:
The Information Systems Department is broken down into infrastructure and software.
These two divisions offer three pillars to the company; Customer Planning and Analysis,
Development, and Operations. For example, the budgeting cycle is endless which starts off with
the business customer. They submit a list of projects and the CP&A teams gather information.
They first begin to get estimates on projected budget expenses, the number of full time
employees needed, and the time needed to complete a project. According to Brazile, based on
their estimates and the budget owned by the business, the projects are prioritized and scoped out
for the upcoming fiscal year (D. Brazile, Personal Communication, November 2, 2011). Because
of the economy being down not a lot of projects make the cut and those that do generally are not
up to the full requirements as initially planned. Customer Planning and Analysis are primarily
responsible for planning. Business Analysts work in this area with project managers like Darin
Brazile and the business to gather requirements and set the scope. The findings are taken back to
the technology teams which give estimates on cost. Once the project is approved the CP&A
teams are the main contacts for completing the documentations like the Business Requirements
Document, Project Schedule, and the Milestone list. The organization tries to base the resources
needed on how big the project is. The workload of a team is a big determination. Traditionally, it
is said that if a team has a large project and multiple small projects then one person will stay on
the small projects and a few people on the large project. The department relies on an all hands on
deck approach when the deadline is approaching and a project is not finished. They rely on in
house and outsourcing. They prefer that each project has a WalMart employee to provide
direction for the outsourced resources. IS management starts off with CIO, Rollin Ford, who
reports directly to CEO, Mike Duke, and works down into committees thereafter. By having the
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CIO report directly to the CEO Walmart illustrates a strong relationship between their
information technology and its integration throughout the entire organization.
RFID Detailed:
One of the most important information systems that Walmart has recently implemented is
radio frequency identification or RFID. Kenneth and Jane Laudon (2010), define radio
frequency identification as “technology using tiny tags with embedded microchips containing
data about an item and its location to transmit short-distance radio signals to special RFID
readers that then pass the data on to a computer for processing” (Laudon & Laudon, 2010, p.
279). RFID tags do not require line of sight contact to be read, unlike traditional bar codes,
allowing companies like Walmart to access information that can uniquely identify products, the
exact specifications of a certain package, along with other information like where and when the
product was made, its current location, or status during production. Each tag comes in a variety
of shapes and sizes and is made up of a microchip for storing data and an antenna to transmit
data to a reader. The reader device can be either a stationary or handheld device that is made up
of an antenna and radio transmitter that decodes incoming transmissions. Generally, the reader
emits a radio wave ranging anywhere from 1 inch to 100 feet, depending upon the output power,
the radio frequency employed, and surrounding environmental conditions. When the reader
comes within range of the tags, tags become active and start sending data. Readers receive and
decode this data and send it back to a host computer through a wired or wireless network
(Laudon & Laudon, 2010).
RFID is mostly used by retail stores like Walmart so that they can be as efficient as
possible in terms of inventory control and supply chain management. RFID has made it possible
for Walmart to “see” their products as they move through the supply chain. Walmart has
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recently set up RFID readers at their loading docks, according to Laudon & Laudon (2010), to
record what products are being sent and received that are equip with RFID tags. As the tagged
product is unloaded from shipping trucks, and products are moved past the loading dock readers,
these tags become active and begin sending data about each and every individual product. This
data is received by the reader, which it sends to a computer that records and stores this
information about the products arrival and that it has moved into a back room storage area. At
this point, if something has been shipped to Walmart that they did not actually order, the product
can quickly be identified, located, and returned all in a timely manner. These readers also work
for things being shipped out and insure that products that should not be leaving their docks
aren’t. While products are in the backroom storage areas, managers are able to use portable
scanners to scan pallets full of products and determine exactly which products are inside. This,
along with data provided from other RFID reader points throughout the store (discussed later),
helps management determine which pallets contain the products that are needed to restock the
sales floor. Once these products are located and carried onto the sales floor, the product and its
RFID tag passes through another set of readers located on the door separating the back storage
room and the sales floor. Again, the data is transmitted from the tags, to the readers, to
computers and reports are developed to acknowledge that products are about to be restocked for
sale on the floor. As the product is purchased, Walmart’s computer system or point of sale
system records the scanned product’s RFID tag and data containing the price of the product is
displayed on monitors for customers to read. After products are purchased, the POS identifies
that the product has been purchased. Another RFID reader is in place at the front entrance and
exit of the store. This reader gathers data from products that are leaving the store, purchased or
not. With the data generated from RFID tags and readers, combined with Walmart’s point-of-
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sale systems, reports can be generated based on what has been purchased (or stolen) by
customers, and depleted products can be restocked. The reason this system has been so
successful is due to the fact that Walmart shares this information with every division of the
supply chain instantly, in real time. If certain products are being purchased, manufactures know
it and are prepared to increase production and vice versa if inventory grows. RFID helps
Walmart keep the right products on the shelves while maintaining an accurate inventory and a
smoothly operating supply chain.
Mario Cardullo was the first person to receive a patent for a passive, read-write RFID tag.
He came up and sketched his ideas in 1969. In Washington D.C. on May 21, 1970, Cardullo’s
attorneys filed on their behalf the patent application for the RFID tag. The U.S. Patent Office
issued the patent on January 23, 1973 (Cardullo, n.d.).
“The patent also presented various uses for the invention including:
1. Detailed description of an automated automotive vehicle highway toll system similar to now
used in most of the toll systems today.
2. Provide a transponder which would be "physically small in size such that the device is highly
portable, can be easily hidden, if desired, and can be carried and placed in or upon many
different objects" (Cardullo, n.d.).
As stated in the history, RFID tags continued to evolve and by the 1990’s as they became
widely used for automated toll collection systems. These systems allow people to pay for the use
of toll roads without having to stop and physically pay a toll. Today toll road payments can still
be made in the same fashion with the help of RFID tags. Cardullo explains how proud he is to
see how his ideas for the applications from the 70’s for this system are now being widely
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adopted. Today, his product is used by the biggest company in the world, Walmart and could
arguably be responsible for a great amount of their success.
Conclusion:
The overall future outlook for Walmart’s information systems looks to be promising as
we can see in Graph 3 that Walmart is experiencing record levels of net sales and is increasing
their capital expenditures projections from 2009, as indicated in Graph 4 in the appendices. The
various information systems that Walmart has implemented in the past several decades have
helped the retail giant to be the success story that it is today. It still holds the title as the industry
leader of low cost goods and has several initiatives in place to gain more market share both
domestically and internationally. The research has covered the rich history that Walmart has had
changing and adapting their information systems along the way to maximize their return for their
shareholders. They have implemented several information systems that were explained
throughout the paper with key emphasis on the RFID system, which seems to be the direction
which they are moving toward. The research also showed how Walmart conducts its Information
System Department and the structure that it uses to maintain and keep the well-oiled machine
running smoothly into the future. The information systems management team will have to
continue to stay vigilant and not become complacent with their success to remain the industry
leader. Through the proper use of the various information systems discussed throughout this
research paper one can generalize that Walmart will continue to innovate and maximize their
revenues by properly managing their inventory levels throughout the entire supply chain system.
The information being shared by the supply chain will help Walmart remain competitive and
profitable.
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Appendices: Board of Directors Organizational Chart: Graph 1
Board of
Directors
CEO
Mike
Duke
Chairman
of the
Board Rob
Walton
Jim
Aida
Walton Alvarez
CIO Rollin
Ford
Assistant
CIO
James
Cash
Gregor Roger
y
Corbet
Penner
t
Dougla James
s Daft Breyer
Arne
Sorens
on
Christo
pher
Willia
ms
Steven
Reine
mund
Lee
Scott
Linda
Wolf
Michel
e
Burns
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Board of Directors: Graph 1.2
17
Walmart Information Systems
Financial Highlights: Graph 2
18
Walmart Information Systems
Financial Data: Graph 3
Information Systems Capital Expenditures: Graph 3
19
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Laudon, K.C. & Laudon, J.P. (2010). Managing information systems-managing the digital firm.
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