Uploaded by lyle-sosa

3 SLIDES

271 VUES

40LIKES

Alternative ERD Notations

DESCRIPTION

Alternative ERD Notations. MBAA 609. Yet Another ERD Notation.

Alternative ERD Notations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Alternative ERD Notations MBAA 609
Database Systems, 9th Edition
Yet Another ERD Notation Database Systems, 9th Edition

ERD diagram

Data Design. ERD diagram. - Mr. Ahmad Al-Ghoul. learning Objectives. Describe data relationships Define cardinality, and use cardinality notation Draw an entity-relationship diagram. Entity-Relationship Diagrams. What Is an ERD?

603 views • 22 slides

Asymptotic Notations

Asymptotic Notations. Algorithms perform f(n) basic operations to accomplish task Identify that function Identify size of problem (n) Count number of operations in terms of n. Execution time. Time computer takes to execute f(n) operations is cf(n) where c

731 views • 6 slides

My notations

My notations. Set of voters {1,..., n } Set of m candidates { a , b , c ...} Preference profile: a vector of rankings. a. b. a. b. a. c. c. c. b. Charles Dodgson. English author and mathematician, better known as Lewis Carroll

562 views • 46 slides

Asymptotic Notations

Asymptotic Notations. Iterative Algorithms and their analysis Asymptotic Notations Big O, Q, W Notations Review of Discrete Math Summations Logarithms. Example I: Finding the sum of an array of numbers. How many steps does this algorithm take to finish?

4.07k views • 21 slides

Scientific Notations

Scientific Notations. Small and Large numbers. Size matters in Chemistry. Small sizes: Diameter of an atom: 0.1nm to 0.5 nm Concentration of H + concentrations in pH 1 x 10 -7 M Mass of one atom of gold 3.27 x 10 -22 g Large numbers: DNA molecule – 8.5 cm long with 50 x 10 6 BP

212 views • 9 slides

EXAMPLE ERD

EXAMPLE ERD. Create and ERD using UML notation using the following rules:.

1.25k views • 3 slides

NOTATIONS

NOTATIONS. FOLLOWING NOTATIONS SHOULD BE FOLLOWED WHILE NAMEING DIFFERENT VIEWS IN ORTHOGRAPHIC PROJECTIONS. OBJECT POINT A LINE AB. IT’S TOP VIEW a a b. IT’S FRONT VIEW a’ a’ b’.

452 views • 17 slides

ERD

ERD. For a full discussion and more examples please consult: http://www.library.cornell.edu/cts/elicensestudy/dlfdeliverables/fallforum2003/ERD_final.doc Also search the WWW for more resources on ERD. Entities. So far, no relationship between students and schools has been indicated.

347 views • 10 slides

ERD Request of Korean ERD

ERD Request of Korean ERD. No ppt file is available.

195 views • 1 slides

ERD Examples

ERD Examples. Example 1. A company has several departments. Each department has a supervisor and at least one employee. Employees must be assigned to at least one, but possibly more departments.

419 views • 13 slides

textual notations

textual notations. grammars production rules CSP and event algebras. Textual - Grammars. Regular expressions sel-line click click* dble-click compare with JSD same computational model different notation BNF expr ::= empty | atom expr | '(' expr ')' expr

457 views • 25 slides

Cloverleaf ERD

Cloverleaf ERD. February 15, 2012. Ten Worst Practices : We talk a lot about teaching's &quot;best practices,&quot; but what about teaching's &quot;worst practices?&quot;. 10. Starting the day by announcing that the only reason you are at school is that you failed to win the lottery again last night.

353 views • 17 slides

Diagram Notations

Diagram Notations. http://www.flickr.com/photos/cardoso/2197507288/. Did you plan to build the Enterprise all on your own????. Diagrams are often useful when… You need to communicate, visualize, or analyze something And that something has some sort of structure.

404 views • 27 slides

Function Notations

Function Notations. Materials. 1 Pencil 1 Paper Clip. Directions. Spin the wheel using the pencil and the paper clip. Each color corresponds to the problems in the same colored box below. Pick any problem and solve. Example.

191 views • 6 slides

ERD

ERD. Translation to tables. A Table Example. t1 = ( foo,bar,baz,x ) t2 = ( quz,bar,foo,y ) t1[a1] = ( baz ) t2[a2] = ({ y,z }) t1[a̅] = ( baz ,{ x,y }) t2[ k ̅] = ( quz,bar ). t1. t2. Vector of all key attributes. k̅ = (k1,k2) a̅ = (a1,a2). Vector of all non-key attributes.

334 views • 20 slides

Haulage ERD

Haulage ERD. Sample system for tutorials. ERD for Haulage system. Driver_Name.

235 views • 2 slides

Matrix Notations

1.2 Matrices Vectors and Gauss – Jordan elimination (This is such an interesting topic that it was made into a movie). Matrix Notations. A website that has programs that will do most operations in this course (an online calculator for matrices) http://www.math.odu.edu/~bogacki/cgi-bin/lat.cgi.

147 views • 11 slides

Modeling workflows : The organizational dimension and alternative notations.

Eindhoven University of Technology Faculty of Technology Management Department of Information and Technology P.O. Box 513 5600 MB Eindhoven The Netherlands w.m.p.v.d.aalst@tm.tue.nl. Modeling workflows : The organizational dimension and alternative notations. Wil van der Aalst.

378 views • 35 slides

Sigma Notations

Sigma Notations. This tells us to end with k=100. This tells us to add. This tells us to start with k=1. Example. Formula. Sigma Notations. Formula. Example. Riemann Sum. is called a partition of [ a , b ]. Example. Is a partition of [ 0 , 10 ].

411 views • 36 slides

More Related