Wednesday, 17 July 2013

Chapter 4


·         Key performance indicator – measures that are tied to business drivers
·         Metrics are detailed measures that feed KPIs
·         Performance metrics fall into the nebulous area of business intelligence that is neither technology, nor business centered, but requires input from both IT and business professionals

·         Efficiency IT metric – measure the performance of the IT system itself including throughout speed and availability
·         Effectiveness IT metric – measures the impact IT has on business processes  and activities including customers satisfaction conversion rates and self-through increases

·         Regardless  or what is measured, how it is measured and whether it is for the sake of efficiency or effectiveness, there must be benchmarks – beseline values the system seek to attain
·         Benchmarking – a process of continuously measuring system results, comparing those results to optimal system performance and identifying to improve system performance

·Efficiency IT metrics focus on technology and include :
*  Throughput - the amount of information that can travel trough a system at any point
Transaction speed - the amount of time a system takes to perform a transaction
System availability – the number of hours a system is available for users
*  Information accuracy – the extent to which a system generates the correct results when executing the same transaction numerous times
Web traffic – includes a host of benchmarks such as the number of page views, the number of unique visitors, and the average time spent viewing a Web page
Response time –the time it takes to respond to user interactions such as a mouse click

Effectiveness IT metrics focus on an organization’s goals, strategies, and objectives and include:
Usability –  The ease with which people perform transactions and/or find information. A popular usability metric on the Internet is degrees of freedom, which measures the numbers of clicks required to find desired information.
Customer satisfaction –  Measured by such benchmarks as satisfaction surveys, percentage of existing customers retained, and increases in revenue dollars per customer.
Conversion rates –  The number of customers an organization “touches” for the first time and persuades to purchase its products or services. This is a popular metric for evaluating the effectiveness of banner, pop-up, and pop-under ads on the Internet.
*  Financial –  Such as return on investment (the earning power of an organization’s assets), cost-benefit analysis (the comparison of projected revenues  and costs including development, maintenance, fixed, and variable), and break-even analysis (the point at which constant revenues equal ongoing costs).
·         Security is an issue for any organization offering products or services over the Internet.
·         It is inefficient for an organization to implement Internet security, since it slows down processing
*  However, to be effective it must implement Internet security
*  Secure Internet connections must offer encryption and Secure Sockets Layers (SSL denoted by the lock symbol in the lower corner of a browser) .

·         Web Site Metrics:
*  Abandoned registrations –  Number of visitors who start the process of completing a registration page and then abandon the activity.
Abandoned shopping carts –  Number of visitors who create a shopping cart and start shopping and then abandon the activity before paying for the merchandise.
Click-through –  people who visit a site, click on an ad, and are taken to the site of the advertiser.
Conversion rate –  potential customers who visit a site and actually buy something.
Cost-per-thousand (CPM) –  sales dollar generated per dollar of advertising. This is commonly used to make the case for spending money to appear on a search engine.
Page exposures –  average number of page exposure to an individual visitor.
Total hits –  number of visits to a web site, many of which may be by the same visitor.
Unique visitor –  number of unique visitors to a site in a given time. This is commonly used by Nielsen/Net ratings to rank the most popular Web site.

*  Back order – an unfilled customer order.
*  Customer order promised cycle time – the anticipated or agreed upon cycle time of a purchase order.
*  Customer order actual cycle time – to actually fill a customer’s purchase order.
*  Inventory replenishment cycle time – measure of the manufacturing cycle time plus  the time included to deploy the product to the appropriate distribution center.
*  Inventory turns ( inventory turnover ) – the number of times that a company’s inventory cycles or turns over per year.


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