A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
Entity relationship diagram (ERD) is one of the most widely used technique for data modeling. An ERD developed during the conceptual data modeling phase of the database development process is generally transformed and enhanced through normalization principles during the logical database design phase.
How to normalise and draw an Entity Relationship Diagram. This feature is not available right now. Please try again later.
Types of Relationships A repeating group is a set of one or more fields that can occur any number of times in a single record,with each occurrence having different values. A table design that contains a repeating group is called unnormalized. The standardnotation method for
Unnormalized Relations First step in normalization is to convert the data into a two dimensional table In unnormalized relations data can repeat within a column 8. First Normal Form To move to First Normal Form a relation must contain only atomic values at each row and column.
Normalization in Database 1NF, 2NF, 3NF, BCNF, 4NF, 5NF, 6NF. Normalization is a database design technique which organizes tables in a manner that reduces redundancy and dependency of data. What is Normalization? 1NF, 2NF, 3NF & BCNF with Examples
Er Diagram Normalization –ER is really a high stage conceptual info version diagram. Entity Relation model will depend on the notion of actual entire world entities and the relationship between them.
An Entity Relationship Diagram (ERD), as a data visualization tool, is a distinct step up from the org chart. Through the most advanced software applications, it aims to capture the full complexity of a modern enterprise as it gains in size and complexity due to the ever advancing world market.
1.1.3 Entity Relationship Diagram (ERD) According the above entities and relationship design we got the first ERD as below; The ERD was showed the logical database design of the Petcare. The ERD identifies a list of data elements that must be included in the database. Fig. 1. The ERD of Petcare. Task 2
Normalization is based on understanding and manipulating functional dependencies. Look into relational diagrams or just list your functional dependencies in text. Also, it doesn't make sense to try to "find the unnormalized form". Unnormalized isn't a relational form, it's anything that isn't a relation. – reaanb Dec 14 '16 at 13:24