Saturday, May 28, 2011

Week 9 Chapter 8: Operations Management and Supply Chain


Define the term operations management 
Operations management is the management of turning raw inputs and resources into goods and services.

Explain operations management’s role in business 
Operations management's role in business is to direct the main processes and measures, which are used to produce manufactured goods, products and services.
Other roles include:
-Forecasting
-Capacity Planning
-Scheduling
-Managing Inventory
-Motivating and Training Employees
-Assuring Quality
-Locating Facilities

Describe the correlation between operations management and information technology 
In order for operations management to operate properly, operation's managers must oversee IT departments, which bring in information from all over the world in order for products to be produced effectively and efficiently. Managers use IT to heavily influence Operational Management decisions. To do this they follow and answer 5 key questions;
-What: What resources will be needed and in what amounts?
-When: When should the work be scheduled?
-Where: Where will the work be performed?
-How: How will the work be done?
-Who: Who will perform the work?
As well as this Information Technology makes sure that the competitive operational management decisions run according to plan. They are used to describe various processes to which a company is able to add value to these decisions. These decisions being; 
-cost
-quality
-delivery
-flexibility
-service
So in saying all of this all the decisions listed result in the many options being available and that they generate influence on profits and costs.

Explain supply chain management and its role in a business 
Supply chain management refers to the management of information flow between and among the stages in a supply chain to maximise total supply chain effectiveness and profitability. It's role in business is significant in that it manage's raw materials, productions, the change in supply and goods and services.

List and describe the five components of a typical supply chain
Plan- The plan is the strategic portion of the supply chain and is essential in making sure that the supply chain is efficient, cost effective and delivers high quality and value to its customers.

Source- It's important that companies choose reliable suppliers, who will deliver the goods and services that are required for making products. It is also essential that companies create a set of pricing, delivery and payment processes with their suppliers, as well as creating metrics which monitor and improve their relationship.

Make- Companies manufacture their product or services in this step. Quality levels, product outputs and worker productivity are measured by this metric intensive portion of the supply chain. Scheduling activities which are required for testing, production, packaging and preparing for delivery are also covered in this step.

Deliver- This stage is usually referred to as logistics. Logistics is the set of processes that plans for and controls the efficient and effective transportation and storage of supplies from the suppliers to the customers. Companies must be able to receive orders from customers, fulfil orders, pick transportation companies to deliver the products, as well as implement a billing and invoicing system to assist with payments during this stage of the supply chain. 

Return- This is typically the most problematic stage. Companies need to create a network for receiving defective and excess products, as well as being able to support customers who have problems with delivered products.


Figure 1: A diagram I made demonstrating the 5 components of supply chain management

Define the relationship between information technology and the supply chain.
Information technologies main role in supply chain management is creating integrations, tight process and information linkages between functions within a company and between companies. This allows a smooth and organised flow of both information and product between customers, suppliers and transportation providers across the supply chain. 

References:

Baltzan, Phillips, Lynch, Blakey, Business Driven Information Systems, 1st Australian/New Zealand Edition, Mc Graw Hill, 2010.

Week 8 Chapter 7: Networks and Wireless


Explain the business benefits of using wireless technology. 
Wireless Technology enables businesses to reach and connect with their customers and employees all over the globe, it allows for faster, better and more efficient services and it has the capacity to communicate and share information all over the world to all different technologies and resources.

Describe the business benefits associated with VoIP. 
The benefits for businesses associated with VoIP are:
-It reduces costs and saves money for the company
-Increases the speed of the business
-Easier application integration
-It increases restoration and response times
-Easier to exchange and use information with systems  

Compare LANs and WANs. 
Local Area Network (LAN)- connects a series of computers on one geographical location. e.g. school, home, office


Figure 1: Diagram of a Local Area Network (LAN)

Wide Area Network (WAN)- connects a series of computers on many different geographical locations. e.g. interstate, province, nationally


Figure 2: Diagram of a Wide Area Network (WAN)

Describe RFID and how it can be used to help make a supply chain more effective.
Radio Frequency Identification (RFID) refers to the technologies which use active or passive tags that are in the form of chips or smart labels. These chips and smart labels can store unique identifiers, which relay this information to electronic readers.
Passive RFID tags have no internal power, however they are able to pick up a very faint signal from an antenna and then are able to power up just enough to transmit data back to the antenna. An example of this is  a passport.
Active RFID tags on the other hand have internal power and are able to transmit mush stronger and more accurate data. An example of this being toll cards.
A supply chain can be made more effective if business use RFID technologies in regards to planning, performance and operation. A business can put these tags on their products, as well as things like, boxes, packages or pallets, which are sent from the warehouse manufacturer to the supplier, being the distributor and then to the actual retailer being the shopkeeper, who would then sell the goods and products to the customer. By an organisation implementing tags, it enables not only the business, but also the distributors to monitor and track the distribution and travels of the goods and products. It also allows for the organisation to monitor the supply chain, as well as making sure that there are enough supplies on the shelves.


Figure 3: A video explaining RFID

Identify the advantages and disadvantage of deploying mobile technology


Figure 4: A table I compiled of the advantages and disadvantages of deploying mobile technology

Refernce's:

Baltzan, Phillips, Lynch, Blakey, Business Driven Information Systems, 1st Australian/New Zealand Edition, Mc Graw Hill, 2010.

T1 Town, 2010, Data Town, LAN/WAN, http://t1town.com/data-services/lanwan/, Visited 27/5/2011

austlo, RFID - Technology Video, YouTube, http://www.youtube.com/watch?v=4Zj7txoDxbE, Visited 27/5/2011

Sunday, May 15, 2011

Week 7 Chapter 6: Databases and Data Warehouses



List, describe, and provide an example of each of the five characteristics of high quality information.
Accuracy
Are all values of information correct?
For example the spelling of someone's name

Completeness
Are any of the values of information missing?
For example a street address. It the postcode missing?

Consistency
Is the summary information provided in agreement with the detailed information?
For example do the total of all fields equal the true total of the individual fields?

Uniqueness
Is each piece of information represented only once?
For example are there duplicates of events, transactions??

Timeliness
Is the information current and up to date?
For example is the information regularly updated?

Define the relationship between a database and a database management system.
A database is an organised set of data. A database management system is a collection of programs which work together to manipulate and manage the database itself. This system also provides a boarder between the database and its users and other programs.

Describe the advantages an organisation can gain by using a database.
These advantages are:
-Increased Flexibility
-Increased Scalability and Performance
-Reduced Information Redundancy
-Increased Information Integrity (Quality)
-Increased Information Security

Define the fundamental concepts of the relational database model.
Entities and Attributes:
Entities- are people, places, things, transactions or events about information which is stored.

Attributes- are characteristics or properties of an entity class and are also known as columns or fields.

Keys and Relationships:
Primary Key- is a field which individually identifies a given entity in a table. These provide a way of distinguishing between each entity in a table.

Foreign Key- this is a primary key that is found in one table which appears as an attribute in another. It acts in a way which provides a logical relationship between the two tables.

Describe the benefits of a data-driven website.
These Benefits Include:
-Development
-Content Management
-Future Expandability
-Minimising Human Error
-Cutting Production and Update Costs
-More Efficient
-Improved Stability
-Increased Customer Satisfaction
-Information is able to Studied Efficiently and Effectively

Describe the roles and purposes of data warehouses and data marts in an organisation.
Data Warehouse- is a large collection of data from sources for query, reporting and analysis, which supports business analysis activities and decision-making tasks. A Data Warehouse mainly addresses the needs of a company or business as a whole.

Data Mart- is a subset of data from a data warehouse. A Data Mart predominately addresses specific functions and/or department's needs. These are most suitable for smaller organisations.

Reference's:

Baltzan, Phillips, Lynch, Blakey, Business Driven Information Systems, 1st Australian/New Zealand Edition, Mc Graw Hill, 2010.