Mis418 quiz4 s02 - WWW we MIS 418(W<9 Quiz 4 Names(s...

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Unformatted text preview: WWW we MIS 418 (W <9 Quiz 4 Names(s) This test is closed book/ closed notes. Use only the paper provided with this test to record your answers. For any question you have the option to make comments beside the question to clarify your reasons for responding. Thinkers Toolkit 8: The Matrix & 9: DecisionZEvent Trees [1] {3 pts} A matrix: gas is one of the handiest, cleverest methods for sorting information “graphically shows choices and their outcomes at different junctures (at) is a grid which has may cells as needed for whatever problem is \ being analyzed \ ® places data onto forms, having the effect of isolating the data so that / they can be analyzed more easily. \EELis the same as a decision tree. [2] -[3] Use the following problem” statement to answer the next two questions: Your personal service budget for the next year is currently under \, review by management. You have requested addifionalMds with which to enlarge your staff. However, funds are tight you may not be granted an increaSe. Your budget may even be cut. Complicating matters is your recent request to move your staff to a larger building because your preset office space is crowded. Tomorrow at a meeting with management you will defend your request for a larger staff. To prepare your defense, you are holding a meeting today‘ENjitthgurfiive assistants to review the arguments pros and con, for alarger staff. Construct a matrix and a decision table that relates the ee po ' e outcomes for your personal services budget to the possibilities of moving to a larger building or remaining in your current offices. M15 418 Quiz4 subject-oriented detailed [C] non-volatile v historical data @integrated Mfits} The operational da tore is [ M3 } In the application function level of the infomiation factory customer interaction is managed immediately ata is prepared for entry into the architecture LTP is used ' \ granularity is managed / llective operational decisions are made \[J7\]] {4 pts} Indicate which of the following apply to Data Warehouses [DW] or Operational Data Store [ODS]: bfif}; concerned about backup and recovery (33‘ “/0ng gig aD[Ow] minimize amount of data accessed /5— ' oHOCfilarge amount of data accessed Past d (I [021)] transactions are slow and have unpredictable arrival rates sm V{,\0\K€ / [(133 very fast update V O\V\ ‘ 1 ()9 [Q0] transactions are small, limited amount of data, fast arrival rate m{fl]mm’m QQOfibvaried type of access \ aVQC [019/] relaxed refreshment Lecture 9: DW Introduction (£11811?) ts} A data warehouse I V] is \v’ bject oriented 1E” me-variant Wolatile {ET JET current, valued -— .upports data focused management decision making process {2 pts} OLTP systems perform updates and take care of queries during off- hour b h operations True [F] False {2 pts} DW are designed to avoid excessive indexing, precalcuated fields and du lication. a True [F] Fals / M2 ts} OLAP presents a multidimensional View of data in a DW. True [F] False W ts} DW must satisfy queries on—line and perform updates in batch @True [F] False M15 418 Quiz4 Page 4 )Bd/{S pts} Mission critical requirements include: [A] profits {at consistency and accuracy [Lcompatibih'ty @availability [E] sustaining competitive advantage Lecture 11: Buildin the DW NZ pts} The Bottom up approach is useful in making technology as ssments and is a good technique for organizations that are not leading- edge te ology implementors. rue [F] False M2 pts} A Top-down approach is useful in cases where the technology is mature and well-understood, and where the business problems that must be solved clear and well understood. ® rue [F] False M pts} The design (Waterfall Method) is similar to the standard Systems Development Life Cycle [SDLC] because the requirements are analyzed in 1:1 phases and are progressively broken down. Clear check points and decisions Q to cont' e the development process at the end of each phase exist. @rue [F] False [ 2] {4 pts} Compare / Contrast a Data Warehouse to a Data Mart in two se ences. ~ cu * a We at. {2 pts} One problem with the acceptance criteria for a DW is that the end Es .. ; . 3 . be a 0 fully articulate their needs. / alse M3 pts} Historical information needs require a great deal of user analysis inter tion including discussio about: #1 data extraction data queries [C] data washing / I m1 ata integration ata transformation Lecture 12: The Co orate Information Facto M15 418 Quiz 4 Page 3 [3] {4 pts} Construct a decision table for the problem statement. @09wa /’5 m2 pts} The two immediate, universal characteristics of a decision event tree are: A] the branches are all commutative the branches are collectively exhaustive [ the branches are totally transitive the branches are mutually dependent [E the branches are mutually exclusive Lecture 10. Data Warehouse Framework Ti] {3 pQBusiness skills include: [ the need to understand business requirements B understanding how to make assessments from given data W to build extractions to transfer data from operational systems to t u e D @the need for domain knowledge about the business a - (1 user, querying, browsing and display tools ' be able to translate business needs into queries and reports [G] the ability to perform data analysis [6] {2 pts} Data Analysis skills include: [A] the need to understand business requirements \ f v nderstanding how to make assessments from given data / [ interfacing technologies, vendors and end users to deliver results. TB-Lthe need for domain knowledge about the business (5 E end user, querying, browsing and display tools 9 e able to translate business needs into queries and reports erives facts based on conclusions M3 pts End user reporting, queries, browsing and display tools include: drill down to explore in more detail intuitive and informative displays \ performing special queries and data retrieval / [D ability to perform data analysis terfacing technology, vendors and end users to deliver results M18 418 Quiz4 Page 2 Thinker’ s Toolkit 7: Causal Flow Dia rammin /L28']/{ 3 pts} Identify and order the five steps of casual flow diagramming [5] analyze the behavior of the relationships as an integrates system [ Z3] characterize the relationships as direct or indirect [ ] insure that the relationships are self-stabilizing [ ] specify whether the relations are direct or inverse [LH diagram the relationships [ \ ] identify major functions [ 2] identify cause and effect relationships M15 418 Quiz 4 Page 5 ...
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