Question 1.3 A database is for the most part utilized for putting away related, organized information, with all around characterized information positions, in a productive way for addition, redesign and/or recovery (contingent upon application). Then again, a record framework is a more unstructured information store for putting away discretionary, presumably disconnected information. The record framework is more broad, and databases are based on top of the general information stockpiling administrations gave by document frameworks. There are additionally contrasts in the normal level of administration gave by document frameworks and databases. While databases must act naturally reliable at any moment in time (consider banks following cash!), give confined exchanges and sturdy composes, a document framework gives much looser …show more content…
certifications about consistency, separation and solidness. The database uses advanced calculations and conventions to actualize solid stockpiling on top of possibly problematic document frameworks. It is these calculations that make database stockpiling more extravagant as far as handling and stockpiling expenses that make general document frameworks an alluring choice for information that does not require the additional sureties gave by a database QUESTION 1.7 (a)List the names of all students majoring in Computer Science. (b) What are the Database's requirements course?. (c) Retrieve the transcript of Smith. This is a rundown of for every course area that Smith has Finished. (d) (Update) Insert another understudy in the database whose Name=Jackson, Student Number=23, Class=1 (first year recruit), and Major=MATH. (e) (Update) Change the evaluation that Smith got in Intro to Computer Science area 119 to B. Question 1.8 Repetition is the point at which the same reality is put away numerous times in a few spots in a database. For instance, in Figure 1.5(a) the way that the understudy's name with StudentNumber=8 is Brown is put away different times . Excess is controlled when the DBMS guarantees that different duplicates of the same information are steady; for instance, if another record with StudentNumber=8 is put away in the database of Figure 1.5(a), the DBMS will guarantee that StudentName=Smith in that record. On the off chance that the DBMS has no influence over this, we have uncontrolled repetition Question 1.9 (a) Each SECTION record is identified with a COURSE record.
(b) Each GRADE_REPORT record i s identified with one STUDENT record and one SECTION record. (c) Each PREREQUISITE record relates two COURSE records: one in the part of a course what's more, the other in the part of an essential to that course. Question 1.10 A view that groups all the students who took each section and gives each student's grade. This may be useful for printing the grade report for each section for theuniversity administration's use.(b) A view that gives the number of courses taken and the GPA (grade point average) for each student. This may be used to determine honors students. Question 1.11 (a) The StudentNumber ought to be uni que for every STUDENT record (key imperative). (b) The CourseNumber ought to be remarkable for every COURSE record (key requirement). (c) An estimation of CourseNumber in a SECTION record should likewise exist in some COURSE record (referential respectability requirement). (d) An estimation of StudentNumber in a GRADE_REPORT record should likewise exist in some Understudy record (referential respectability
limitation). (e) The estimation of Grade in a GRADE_REPORT record must be one of the qualities in the set {A, B, C, D, F, I, U, S} (area limitation). (f) Every record in COURSE must have a quality for CourseNumber (element uprightness imperative). (g) A STUDENT record can't have an estimation of Class=2 (sophomore) unless the understudy has finished various segments whose aggregate course CreditHours is more prominent th at 24 credits (general semantic uprightness requirement). Question 1.12 1. Little interior utility to find records 2. Little single client application that does not require security, (for example, a tweaked number cruncher or an individual address and telephone directory) 3. Real‐time route framework (with overwhelming calculation furthermore, almost no information More attractive to utilize consistent records for: 4.Simple, well‐defined database applications not anticipated that would change by any stretch of the imagination. 5. Stringent, real‐time necessities that may not be met in light of DBMS overhead. 6.Embedded frameworks with restricted stockpiling limit. 7. No multiple‐user access. Question 1.13(a) Say the name of the CS (computer science) department to CSSE(computer science &software engineering)department. The corresponding prefix for the course number also changes. TABLE Column Student major section Course number course Course Number & Department Prerequisite Course Number & Prerequisite Number Question 1.13(b) Table Column columns course Course number Course department & course number prerequisite Course number Course department & course number prerequisite Prerequisite number Prerequisite department& prerequisite number sections Course number Course department & course number. Late changes in protection laws have refused associations from utilizing SINs to recognize people unless certain limitations are fulfilled. Therefore, colleges can't utilize SINs as essential keys (with the exception of monetary information). Practically speaking, StudentID, an one of a kind ID, an one of a kind identifier, doled out to each understudy, is prone to be utilized as the essential key as opposed to SSN since StudentID is usable over all parts of the framework. Some dtb an ase d i es gners are reltt uc a to utilize produced keys (otherwise called surrogate keys) for essential keys, (for example, StudentID) in light of the fact that they are simulated. Question 2.12 (a) Registration Office User: They can enter information that mirror the enlistment of understudies in segments of courses, and later enter the understudies' evaluations. Applications can include: - Register an understudy in a segment of a course - Check whether an understudy who is enlisted in a course has the proper essential courses - Drop an understudy from a segment of a course - Add an understudy to a segment of a course - Enter the understudy grades for a segment Application software engineers can compose various canned exchanges for the enlistment office end-clients, giving them either structures and menus, or with a parametric interface. (b) Admissions Office User: The principle application is to enter recently acknowledged understudies into the database. Can utilize the same sort of interfaces as (a). (c) Transcripts Office User: The principle application is to print understudy transcripts. Application software engineers can compose a canned exchange utilizing a report generator utility to print the transcript of an understudy in a recommended organization. The specific understudy can be distinguished by name or standardized savings number. Another application would be to create evaluation slips toward the end of every semester for all understudies who have finished courses amid that semester. Once more, this application could be customized utilizing a report generator utility. Question 2.13 Question 2.14 Three-Tier Client/Server Architecture for Web Application is the best decision. The Client comprises of Web User Interface. The Web Server contains the application rationale which incorporates every one of the standards and regulations identified with the reservation procedure and the issue of tickets; the Database Server contains the DBMS. Incorporated DBMS Architecture would not work following the client interface and database server are on diverse machines for an online framework. Fundamental Client/Server Architecture and Two-Tier Client/Server Architecture would work if the Business Logic can live on server other than the DBMS Server. When all is said in done, if the business rationale was on the DBMS Server, it will put an over the top weight on the server. In the event that the business rationale were to live on the web customer, it will trouble the correspondence system also a potentially thin customer. Question 2.15 Table Column COURSE Course Number Since this contains the division's blend and the number that must be exceptional inside of the office. Note we will ignore the certainty this does not oblige an office from offering a few "Exceptional Topics" course with the same CourseNumber yet distinctive titles. We could make this a mix of CourseNumber and CourseName, however this is more succeptible to somebody mistyping while entering information. PREREQUISITE The mix of CourseNumber and PrerequisiteNumber. SECTION SectionIdentifier We accept that no two areas can have the same SectionIdentifier. If we somehow managed to consider that SectionIdentifier is one of a kind just inside of a given course offered in a given term, (for example, segment 2 of CS101) then the answer changes to the mix of SectionIdentifier, CourseNumber, Semester, and Year. GRADE REPORT StudentNumber and SectionIdentifier According to supposition expressed in SECTION, the SectionIdentifier will be diverse if an understudy takes the same course or an alternate course in another term.
I have to pull two alleles (two straws) from the bag to represent one fish because fishes like humans get two alleles one from their father and one from their mother.
A third and the most obvious way that educators characterize the needs and abilities of their students is with grades. Whether your in first grade and get U's or S's, or your in highschool and get A's, B's, C's, D's, or F's teachers are always judging students ability levels. Anoth...
For all individuals in Tables 1 and 2 labeled as a parent or grandparent identify
As defined by Kroenke Database is an integrated, self-describing collection of related data. Data is stored in a uniform way, typically all in one place- for example, a single physical computer. A database maintains a description of the data it contains and the data has some relationship to other data in the databa...
Maintain records: A binder will be kept for each student that will include calendars, records of grades, achievements, and disciplines documentation, if any. Additionally, A grade book in a soft copy will be kept that document student grades for each assignment. Detailed notes regarding progress will also be documented in the grade book, which will aid in creating intermittent progress reports to keep parents
The traditional high school A-F grading system no longer reflects an accurate measurement of student success. Providing a new system where grades are measured by the rank of the student in the class will provide a system more honest than before, it will benefit students and prospective colleges. Changing the grading scale to a system where students are ranked from a curve based off the total percentage of points potentially earned in the course.
Thirdly, assessment and grading scheme is one of the most important factors of the course, but components of scores and score weighting are a challenge for students because they do not know which criteria will be
1H: analyzes and uses student information to design instruction that meets the diverse needs of students and leads to ongoing growth and achievement.
Before we move our attention directly to the problems of marking system, let us take a short look at the history of early American colleges and universities. It is interesting to note that in the earliest days of Harvard, students were not sorted by alphabets or grades, but by the social status of their families. Moreover, it is quite clear that there was a sort of assessment used for student works until the grading system was invented. It was at Yale, Harvard and Mount Holyoke that the widely used three types of grading system - 4 scale, 100 percentage and letters – were invente...
Section5: Artifact1-4 are lesson plans that evidences my ability to plan instruction that is responsive to the age and characteristics of the students by the inclusion
Grading and testing is usually a mandatory part of teaching. Most schools let the teachers decide how and when to test, as long as the letters A, B, C, D, or F appears on a student’s report card. Teachers may not like the fact that some failing grades will have to be given, but as long as their way of grading is fair to every student, it is something that they will have to deal with. There are many methods of measuring a student’s ability to accomplish a task. However, many students freeze under normal testing procedures and may need to be evaluated in another manner. Also, it is important for teachers to understand fair grading procedures so students can best benefit from effective tests. By knowing the main ways of measuring student achievement, and proper formats for grading, students can be evaluated correctly. (Fairtest, 98)
__C__ 13. If the scores on X give us no information about the scores on Y, this indicates
2. Format – I strictly followed the format of rubric that was provided by Professor Brown.
Student is provided with all the notes. Student is also given extra time to complete assignments. Given individual instruction. Check the work in progress.
OSBORNE, C. (1988, February 18). A UNIFORM CODE FOR CLASS SUCCESS. Sydney Morning Herald, p. 2.