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The Internet started as Advanced Research Projects Agency Network (ARPANET) Because universities were working on research for the military, a means was desired to be able to share research papers Some say it started before ARPANET by informal agreements between universities to dial each other up and exchange e-mail At the time, there were no formal protocols such as IP These informal dial-up connections were using acoustic-coupled modems at 1200b/s Actually, there was no real network only these agreements to forward mail ARPANET started with the first packet switching technology The first packet software was called an Intermediate Message Processor (IMP) and was built under contract by Bolt, Bernak, and Newman The goal was to remotely log into computers in Berkeley from UCLA The initial experiment didn t work, but it provided the basis for continued improvement, which lead to ARPANET The Internet began then as an interconnection of IMPs that could relay traffic between hosts (A host was a mainframe or a minicomputer Today, any device can interface to the network and run the networking protocols) The military changed the name of the project to Defense Advanced Research Projects Agency (DARPA) Under DARPA, the Internet continued to grow and expand Outgrowths of this work were WMICS, WINS, MILNET, and eventually DDN The military, therefore, had no need any longer for DARPANET and handed it over to the National Science Foundation (NSF) and the Internet became NSFNET The NSF was funding most of the research anyway, and the universities were using some of that funding to support their Internet habit The goal of the NSF was to provide shared access to supercomputers Each university was naturally lobbying for its own supercomputer Providing remote access via the Internet would be a lot less expensive for the NSF The NSF funded the Internet from the mid-1980s until 1992 when benefits previously reserved for the academic community became apparent to all What was happening was that students, who had had access to the Internet while on campus, were cut off upon graduation They were therefore very creative in figuring out ways to hang onto their Internet accounts This created a set of haves and have-nots The pressure built for the commercialization of the Internet Continuing the funding became the pressing question Under the NSF, the Internet had grown to include virtually all-major schools Since funding was from the government, access was easy If your school wanted access to the Internet, you simply called up your nearest associated school who had access to the Internet and asked for a port on their router You then leased to communications lines of the appropriate bandwidth You sent some money to the next school to help them pay for the additional router capacity and communications capacity that they would need to have to support your additional traffic going through their system Notice that we said that the Internet was a loose collection of many networks, and here we just added another network (By the early 1990s, the potential of the Internet was well recognized, and everyone was clambering for access).

3:

called Band by Numeric Value of Actual, which is a much simpler formula and only calculates a score based on the value of the actual number and does not take the target into account The final method is called Band by Stated Score (Advanced) and calculates a number between any two values chosen As an example, imagine that the target is a calculation such as Sales Growth % from Prior Period and values of more than 10% should be green, 10% to -10% should be yellow and less than -10% should be red All three methods are the same regardless of the scoring pattern used After selecting the scoring pattern and banding method, the next screen allows the designer to choose the indicator to be used By default, if only the wizard has been used, there may be only the standard three position stoplight It s possible to add additional indicators, and this will be discussed momentarily The final screen in the Edit Banding Settings wizard asks for the Worst value to be entered if the banding method is the normalized value (which is the default) This is just a hard-coded value in the wizard, but can be made into a formula later in the process After clicking the Finish button from this page, the new indicator is created and added to the Workspace Browser Back on the Sales Amount summary screen, the next column in the Actual and Targets area is called Data Mappings This is the area where both can be set to the data element to which they are tied While both Actual and Target can be a fixed value, this makes little sense for the Actual The Target is not a fixed value either, although it could be when companies proclaim that they want to achieve a certain percentage of gross margin or a certain maximum failure rate in quality control tests, for example Clicking on the link for either Actual or Target in the Data Mappings column brings up the Dimension Data Source Mapping dialog box Shown in Figure 5-14, this dialog box allows developers to choose an existing measure and optionally filter that value based on selections from different dimensions Note that in Figure 5-14, the selections would filter the Sales Amount Quota to bikes sold in Arizona While this is certainly possible, it s more likely that just the measure will change and will be pointed to a quota or forecasted amount, such as the Sales Quota chosen earlier It s often better to filter the data later for the entire scorecard This will be examined later in the chapter Next, the wizard allows users to add a time filter formula This can be useful when a forecast value doesn t exist in the data source, but the developer wants to use a prior period In such a case, a formula could be entered that would read the measure from a prior period, such as the time period in the previous year from whatever date is currently being viewed A further and more detailed option on the screen is to use an MDX formula Multidimensional Expressions, or MDX, is the language used to access Analysis Services, just as Structured Query Language, or SQL, is the language used to access relational data While beyond the scope of this book, an understanding.

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